/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_42-traces-ex-mini_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:58:45,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:58:45,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:58:45,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:58:45,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:58:45,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:58:45,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:58:45,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:58:45,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:58:45,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:58:45,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:58:45,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:58:45,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:58:45,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:58:45,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:58:45,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:58:45,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:58:45,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:58:45,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:58:45,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:58:45,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:58:45,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:58:45,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:58:45,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:58:45,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 04:58:45,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:58:45,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:58:45,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:58:45,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:58:45,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:58:45,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:58:45,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:58:45,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:58:45,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:58:45,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:58:45,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:58:45,576 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 04:58:45,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:58:45,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:58:45,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:58:45,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:58:45,602 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:58:45,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:58:45,603 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:58:45,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:58:45,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:58:45,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:58:45,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:58:45,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:58:45,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:58:45,604 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:58:45,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:58:45,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:58:45,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:58:45,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:58:45,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:58:45,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:58:45,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:58:45,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:58:45,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:58:45,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:58:45,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:58:45,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:58:45,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:58:45,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:58:45,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:58:45,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:58:45,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:58:45,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:58:45,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:58:45,920 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:58:45,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2022-12-06 04:58:47,035 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:58:47,232 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:58:47,233 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2022-12-06 04:58:47,252 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e0909a4/483685bedd484922a94d2175fb9de4fe/FLAG1f430f42f [2022-12-06 04:58:47,261 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e0909a4/483685bedd484922a94d2175fb9de4fe [2022-12-06 04:58:47,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:58:47,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:58:47,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:58:47,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:58:47,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:58:47,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ab6877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47, skipping insertion in model container [2022-12-06 04:58:47,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:58:47,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:58:47,435 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_42-traces-ex-mini_true.i[1091,1104] [2022-12-06 04:58:47,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:58:47,572 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:58:47,582 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_42-traces-ex-mini_true.i[1091,1104] [2022-12-06 04:58:47,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:58:47,641 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:58:47,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47 WrapperNode [2022-12-06 04:58:47,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:58:47,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:58:47,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:58:47,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:58:47,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,677 INFO L138 Inliner]: procedures = 162, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-06 04:58:47,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:58:47,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:58:47,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:58:47,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:58:47,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,691 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:58:47,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:58:47,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:58:47,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:58:47,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (1/1) ... [2022-12-06 04:58:47,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:58:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:58:47,720 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 04:58:47,738 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 04:58:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:58:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:58:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:58:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:58:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 04:58:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 04:58:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:58:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:58:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:58:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:58:47,768 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 04:58:47,854 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:58:47,856 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:58:47,961 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:58:47,966 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:58:47,966 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:58:47,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:47 BoogieIcfgContainer [2022-12-06 04:58:47,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:58:47,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:58:47,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:58:47,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:58:47,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:58:47" (1/3) ... [2022-12-06 04:58:47,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f9fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:47, skipping insertion in model container [2022-12-06 04:58:47,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:47" (2/3) ... [2022-12-06 04:58:47,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f9fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:47, skipping insertion in model container [2022-12-06 04:58:47,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:47" (3/3) ... [2022-12-06 04:58:47,973 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_42-traces-ex-mini_true.i [2022-12-06 04:58:47,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:58:47,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:58:47,986 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:58:48,021 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:58:48,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2022-12-06 04:58:48,108 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-06 04:58:48,108 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:48,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 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. 0/69 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-12-06 04:58:48,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 149 flow [2022-12-06 04:58:48,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2022-12-06 04:58:48,128 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:48,147 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 123 flow [2022-12-06 04:58:48,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 123 flow [2022-12-06 04:58:48,197 INFO L130 PetriNetUnfolder]: 0/60 cut-off events. [2022-12-06 04:58:48,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:48,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 04:58:48,199 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 123 flow [2022-12-06 04:58:48,199 INFO L188 LiptonReduction]: Number of co-enabled transitions 286 [2022-12-06 04:58:51,714 INFO L203 LiptonReduction]: Total number of compositions: 51 [2022-12-06 04:58:51,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:58:51,729 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;@3656aad9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:58:51,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 04:58:51,732 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-06 04:58:51,732 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:51,732 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:51,733 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 04:58:51,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:51,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1592927668, now seen corresponding path program 1 times [2022-12-06 04:58:51,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:51,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482338657] [2022-12-06 04:58:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:51,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:58:51,927 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 04:58:51,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:58:51,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482338657] [2022-12-06 04:58:51,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482338657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:58:51,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:58:51,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:58:51,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692611919] [2022-12-06 04:58:51,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:58:51,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:58:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:58:51,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:58:51,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:58:51,950 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 11 [2022-12-06 04:58:51,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 25 flow. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:58:51,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:58:51,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 11 [2022-12-06 04:58:51,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:58:51,993 INFO L130 PetriNetUnfolder]: 9/33 cut-off events. [2022-12-06 04:58:51,993 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:51,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 33 events. 9/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 6 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 57. Up to 20 conditions per place. [2022-12-06 04:58:51,994 INFO L137 encePairwiseOnDemand]: 7/11 looper letters, 8 selfloop transitions, 3 changer transitions 2/14 dead transitions. [2022-12-06 04:58:51,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 14 transitions, 55 flow [2022-12-06 04:58:51,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:58:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:58:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2022-12-06 04:58:52,002 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2022-12-06 04:58:52,003 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 25 flow. Second operand 3 states and 19 transitions. [2022-12-06 04:58:52,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 14 transitions, 55 flow [2022-12-06 04:58:52,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:58:52,006 INFO L231 Difference]: Finished difference. Result has 17 places, 9 transitions, 31 flow [2022-12-06 04:58:52,007 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=31, PETRI_PLACES=17, PETRI_TRANSITIONS=9} [2022-12-06 04:58:52,009 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, 2 predicate places. [2022-12-06 04:58:52,010 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:58:52,010 INFO L89 Accepts]: Start accepts. Operand has 17 places, 9 transitions, 31 flow [2022-12-06 04:58:52,012 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:58:52,012 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:52,012 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 9 transitions, 31 flow [2022-12-06 04:58:52,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 15 places, 9 transitions, 31 flow [2022-12-06 04:58:52,016 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-06 04:58:52,016 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:58:52,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 10 events. 0/10 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 04:58:52,016 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 9 transitions, 31 flow [2022-12-06 04:58:52,016 INFO L188 LiptonReduction]: Number of co-enabled transitions 20 [2022-12-06 04:58:52,039 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [213] L690-->t_funEXIT: Formula: (and (= |v_t_funThread1of1ForFork0_#res.offset_11| 0) (= |v_#pthreadsMutex_275| (store |v_#pthreadsMutex_276| |v_~#C~0.base_87| (store (select |v_#pthreadsMutex_276| |v_~#C~0.base_87|) |v_~#C~0.offset_87| 0))) (= |v_t_funThread1of1ForFork0_#res.base_11| 0) (= v_~g~0_80 17)) InVars {#pthreadsMutex=|v_#pthreadsMutex_276|, ~#C~0.base=|v_~#C~0.base_87|, ~#C~0.offset=|v_~#C~0.offset_87|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_275|, ~#C~0.base=|v_~#C~0.base_87|, ~g~0=v_~g~0_80, ~#C~0.offset=|v_~#C~0.offset_87|, t_funThread1of1ForFork0_#res.base=|v_t_funThread1of1ForFork0_#res.base_11|, t_funThread1of1ForFork0_#res.offset=|v_t_funThread1of1ForFork0_#res.offset_11|} AuxVars[] AssignedVars[#pthreadsMutex, ~g~0, t_funThread1of1ForFork0_#res.base, t_funThread1of1ForFork0_#res.offset] and [211] $Ultimate##0-->L689: Formula: (let ((.cse2 (select |v_#pthreadsMutex_221| |v_~#B~0.base_75|))) (let ((.cse0 (store |v_#pthreadsMutex_221| |v_~#B~0.base_75| (store .cse2 |v_~#B~0.offset_75| 1)))) (let ((.cse1 (select .cse0 |v_~#C~0.base_75|))) (and (= (store .cse0 |v_~#C~0.base_75| (store .cse1 |v_~#C~0.offset_75| 1)) |v_#pthreadsMutex_219|) (= (select .cse2 |v_~#B~0.offset_75|) 0) (= (select .cse1 |v_~#C~0.offset_75|) 0) (= v_t_funThread1of1ForFork0_~arg.base_15 |v_t_funThread1of1ForFork0_#in~arg.base_15|) (= |v_t_funThread1of1ForFork0_#in~arg.offset_15| v_t_funThread1of1ForFork0_~arg.offset_15) (= v_~g~0_67 42))))) InVars {#pthreadsMutex=|v_#pthreadsMutex_221|, ~#B~0.base=|v_~#B~0.base_75|, t_funThread1of1ForFork0_#in~arg.offset=|v_t_funThread1of1ForFork0_#in~arg.offset_15|, ~#C~0.base=|v_~#C~0.base_75|, ~#C~0.offset=|v_~#C~0.offset_75|, t_funThread1of1ForFork0_#in~arg.base=|v_t_funThread1of1ForFork0_#in~arg.base_15|, ~#B~0.offset=|v_~#B~0.offset_75|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_219|, ~#B~0.base=|v_~#B~0.base_75|, t_funThread1of1ForFork0_#in~arg.offset=|v_t_funThread1of1ForFork0_#in~arg.offset_15|, ~g~0=v_~g~0_67, ~#C~0.base=|v_~#C~0.base_75|, ~#C~0.offset=|v_~#C~0.offset_75|, t_funThread1of1ForFork0_~arg.offset=v_t_funThread1of1ForFork0_~arg.offset_15, t_funThread1of1ForFork0_#t~nondet1=|v_t_funThread1of1ForFork0_#t~nondet1_39|, t_funThread1of1ForFork0_#t~nondet2=|v_t_funThread1of1ForFork0_#t~nondet2_35|, t_funThread1of1ForFork0_#in~arg.base=|v_t_funThread1of1ForFork0_#in~arg.base_15|, t_funThread1of1ForFork0_~arg.base=v_t_funThread1of1ForFork0_~arg.base_15, ~#B~0.offset=|v_~#B~0.offset_75|} AuxVars[] AssignedVars[#pthreadsMutex, ~g~0, t_funThread1of1ForFork0_~arg.offset, t_funThread1of1ForFork0_#t~nondet1, t_funThread1of1ForFork0_#t~nondet2, t_funThread1of1ForFork0_~arg.base] [2022-12-06 04:58:52,100 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:58:52,101 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 91 [2022-12-06 04:58:52,101 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 9 transitions, 34 flow [2022-12-06 04:58:52,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:58:52,101 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:52,101 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:58:52,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:58:52,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:52,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:52,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2136117211, now seen corresponding path program 1 times [2022-12-06 04:58:52,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:52,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787778767] [2022-12-06 04:58:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:52,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:58:52,226 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 04:58:52,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:58:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787778767] [2022-12-06 04:58:52,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787778767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:58:52,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:58:52,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:58:52,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374003018] [2022-12-06 04:58:52,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:58:52,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:58:52,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:58:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:58:52,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:58:52,229 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 9 [2022-12-06 04:58:52,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 9 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 04:58:52,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:58:52,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 9 [2022-12-06 04:58:52,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:58:52,252 INFO L130 PetriNetUnfolder]: 2/14 cut-off events. [2022-12-06 04:58:52,252 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 04:58:52,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 14 events. 2/14 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 1 based on Foata normal form. 3/17 useless extension candidates. Maximal degree in co-relation 29. Up to 8 conditions per place. [2022-12-06 04:58:52,253 INFO L137 encePairwiseOnDemand]: 5/9 looper letters, 5 selfloop transitions, 4 changer transitions 0/9 dead transitions. [2022-12-06 04:58:52,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 9 transitions, 46 flow [2022-12-06 04:58:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:58:52,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:58:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-12-06 04:58:52,254 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3055555555555556 [2022-12-06 04:58:52,254 INFO L175 Difference]: Start difference. First operand has 15 places, 9 transitions, 34 flow. Second operand 4 states and 11 transitions. [2022-12-06 04:58:52,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 9 transitions, 46 flow [2022-12-06 04:58:52,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 9 transitions, 42 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:58:52,255 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 30 flow [2022-12-06 04:58:52,255 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=9, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2022-12-06 04:58:52,256 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, 0 predicate places. [2022-12-06 04:58:52,256 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:58:52,256 INFO L89 Accepts]: Start accepts. Operand has 15 places, 8 transitions, 30 flow [2022-12-06 04:58:52,256 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:58:52,257 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:52,257 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 8 transitions, 30 flow [2022-12-06 04:58:52,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 15 places, 8 transitions, 30 flow [2022-12-06 04:58:52,259 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-06 04:58:52,259 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:52,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 04:58:52,260 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 8 transitions, 30 flow [2022-12-06 04:58:52,260 INFO L188 LiptonReduction]: Number of co-enabled transitions 4 [2022-12-06 04:58:52,410 INFO L203 LiptonReduction]: Total number of compositions: 4 [2022-12-06 04:58:52,411 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 155 [2022-12-06 04:58:52,411 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 4 transitions, 20 flow [2022-12-06 04:58:52,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 04:58:52,411 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:52,412 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-06 04:58:52,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:58:52,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash 7281684, now seen corresponding path program 1 times [2022-12-06 04:58:52,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:52,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391703820] [2022-12-06 04:58:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:58:52,661 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 04:58:52,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:58:52,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391703820] [2022-12-06 04:58:52,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391703820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:58:52,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:58:52,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:58:52,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227315212] [2022-12-06 04:58:52,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:58:52,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:58:52,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:58:52,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:58:52,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:58:52,666 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 4 [2022-12-06 04:58:52,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 4 transitions, 20 flow. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 04:58:52,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:58:52,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 4 [2022-12-06 04:58:52,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:58:52,672 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-06 04:58:52,673 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:52,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/4 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-06 04:58:52,673 INFO L137 encePairwiseOnDemand]: 1/4 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2022-12-06 04:58:52,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 3 transitions, 20 flow [2022-12-06 04:58:52,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:58:52,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:58:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2022-12-06 04:58:52,674 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-06 04:58:52,674 INFO L175 Difference]: Start difference. First operand has 11 places, 4 transitions, 20 flow. Second operand 4 states and 4 transitions. [2022-12-06 04:58:52,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 3 transitions, 20 flow [2022-12-06 04:58:52,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 3 transitions, 14 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-06 04:58:52,674 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2022-12-06 04:58:52,674 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=4, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2022-12-06 04:58:52,676 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, -6 predicate places. [2022-12-06 04:58:52,676 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:52,676 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 9 places, 0 transitions, 0 flow [2022-12-06 04:58:52,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:58:52,676 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:58:52,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:52,676 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 04:58:52,677 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:58:52,677 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:58:52,677 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:58:52,678 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 04:58:52,678 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:58:52,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 04:58:52,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 04:58:52,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 04:58:52,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:58:52,680 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 04:58:52,683 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:58:52,683 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:58:52,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:58:52 BasicIcfg [2022-12-06 04:58:52,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:58:52,694 INFO L158 Benchmark]: Toolchain (without parser) took 5430.32ms. Allocated memory was 209.7MB in the beginning and 282.1MB in the end (delta: 72.4MB). Free memory was 184.1MB in the beginning and 133.0MB in the end (delta: 51.1MB). Peak memory consumption was 124.3MB. Max. memory is 8.0GB. [2022-12-06 04:58:52,695 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 209.7MB. Free memory was 186.8MB in the beginning and 186.7MB in the end (delta: 72.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:58:52,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.74ms. Allocated memory is still 209.7MB. Free memory was 184.1MB in the beginning and 165.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 04:58:52,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.73ms. Allocated memory is still 209.7MB. Free memory was 165.0MB in the beginning and 162.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:58:52,695 INFO L158 Benchmark]: Boogie Preprocessor took 15.73ms. Allocated memory is still 209.7MB. Free memory was 162.9MB in the beginning and 161.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:58:52,695 INFO L158 Benchmark]: RCFGBuilder took 273.93ms. Allocated memory is still 209.7MB. Free memory was 161.3MB in the beginning and 147.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 04:58:52,696 INFO L158 Benchmark]: TraceAbstraction took 4724.58ms. Allocated memory was 209.7MB in the beginning and 282.1MB in the end (delta: 72.4MB). Free memory was 147.2MB in the beginning and 133.0MB in the end (delta: 14.2MB). Peak memory consumption was 87.6MB. Max. memory is 8.0GB. [2022-12-06 04:58:52,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 209.7MB. Free memory was 186.8MB in the beginning and 186.7MB in the end (delta: 72.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 375.74ms. Allocated memory is still 209.7MB. Free memory was 184.1MB in the beginning and 165.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.73ms. Allocated memory is still 209.7MB. Free memory was 165.0MB in the beginning and 162.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.73ms. Allocated memory is still 209.7MB. Free memory was 162.9MB in the beginning and 161.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 273.93ms. Allocated memory is still 209.7MB. Free memory was 161.3MB in the beginning and 147.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4724.58ms. Allocated memory was 209.7MB in the beginning and 282.1MB in the end (delta: 72.4MB). Free memory was 147.2MB in the beginning and 133.0MB in the end (delta: 14.2MB). Peak memory consumption was 87.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 64 PlacesBefore, 15 PlacesAfterwards, 60 TransitionsBefore, 11 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 17 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 280, independent: 241, independent conditional: 241, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 280, independent: 241, independent conditional: 0, independent unconditional: 241, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 280, independent: 241, independent conditional: 0, independent unconditional: 241, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 280, independent: 241, independent conditional: 0, independent unconditional: 241, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 203, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 203, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 125, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 280, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 203, unknown conditional: 0, unknown unconditional: 203] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 303, Positive conditional cache size: 0, Positive unconditional cache size: 303, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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, 15 PlacesBefore, 15 PlacesAfterwards, 9 TransitionsBefore, 9 TransitionsAfterwards, 20 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, independent: 13, independent conditional: 13, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 29, independent: 13, independent conditional: 13, independent unconditional: 0, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 13, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 15 PlacesBefore, 11 PlacesAfterwards, 8 TransitionsBefore, 4 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, 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: 2, independent: 2, independent conditional: 2, 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: 2, independent: 2, independent conditional: 2, 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: 2, independent: 2, independent conditional: 2, 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: 2, independent: 2, independent conditional: 2, 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: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 10, Positive conditional cache size: 2, Positive unconditional cache size: 8, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: 0.0s, 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): 17, Positive cache size: 10, Positive conditional cache size: 2, Positive unconditional cache size: 8, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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, 85 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: 4.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 04:58:52,715 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...