./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-4.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-4.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-04 16:25:51,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 16:25:51,095 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 16:25:51,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 16:25:51,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 16:25:51,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 16:25:51,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 16:25:51,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 16:25:51,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 16:25:51,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 16:25:51,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 16:25:51,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 16:25:51,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 16:25:51,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 16:25:51,117 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 16:25:51,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 16:25:51,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 16:25:51,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 16:25:51,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 16:25:51,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 16:25:51,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 16:25:51,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 16:25:51,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 16:25:51,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 16:25:51,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 16:25:51,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 16:25:51,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 16:25:51,124 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 16:25:51,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 16:25:51,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 16:25:51,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 16:25:51,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 16:25:51,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:25:51,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 16:25:51,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 16:25:51,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 16:25:51,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 16:25:51,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 16:25:51,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 16:25:51,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 16:25:51,126 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 16:25:51,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 16:25:51,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 16:25:51,126 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 16:25:51,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 16:25:51,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 16:25:51,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 16:25:51,311 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 16:25:51,313 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 16:25:51,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-4.wvr.yml/witness.yml [2024-06-04 16:25:51,371 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 16:25:51,371 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 16:25:51,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2024-06-04 16:25:52,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 16:25:52,643 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 16:25:52,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2024-06-04 16:25:52,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d5cabdb/3a6fec0be7e948f6a63275b8256a2805/FLAG7334ea86f [2024-06-04 16:25:52,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d5cabdb/3a6fec0be7e948f6a63275b8256a2805 [2024-06-04 16:25:52,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 16:25:52,675 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 16:25:52,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 16:25:52,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 16:25:52,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 16:25:52,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:51" (1/2) ... [2024-06-04 16:25:52,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea1fe8c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:52, skipping insertion in model container [2024-06-04 16:25:52,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:51" (1/2) ... [2024-06-04 16:25:52,702 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4bc71723 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:52, skipping insertion in model container [2024-06-04 16:25:52,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:25:52" (2/2) ... [2024-06-04 16:25:52,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea1fe8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:52, skipping insertion in model container [2024-06-04 16:25:52,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:25:52" (2/2) ... [2024-06-04 16:25:52,713 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 16:25:52,729 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 16:25:52,730 INFO L97 edCorrectnessWitness]: Location invariant before [L140-L140] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-04 16:25:52,730 INFO L97 edCorrectnessWitness]: Location invariant before [L139-L139] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-04 16:25:52,730 INFO L97 edCorrectnessWitness]: Location invariant before [L137-L137] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-04 16:25:52,730 INFO L97 edCorrectnessWitness]: Location invariant before [L138-L138] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-04 16:25:52,730 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 16:25:52,730 INFO L106 edCorrectnessWitness]: ghost_update [L136-L136] multithreaded = 1; [2024-06-04 16:25:52,744 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 16:25:52,873 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:25:52,881 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 16:25:52,979 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:25:52,999 INFO L206 MainTranslator]: Completed translation [2024-06-04 16:25:53,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53 WrapperNode [2024-06-04 16:25:53,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 16:25:53,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 16:25:53,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 16:25:53,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 16:25:53,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,059 INFO L138 Inliner]: procedures = 22, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 195 [2024-06-04 16:25:53,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 16:25:53,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 16:25:53,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 16:25:53,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 16:25:53,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,098 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-04 16:25:53,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 16:25:53,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 16:25:53,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 16:25:53,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 16:25:53,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (1/1) ... [2024-06-04 16:25:53,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:25:53,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 16:25:53,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-04 16:25:53,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-04 16:25:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 16:25:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-04 16:25:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-04 16:25:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-04 16:25:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-04 16:25:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-04 16:25:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-04 16:25:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-04 16:25:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-04 16:25:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 16:25:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 16:25:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 16:25:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 16:25:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 16:25:53,171 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 16:25:53,241 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 16:25:53,243 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 16:25:53,531 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 16:25:53,531 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 16:25:53,685 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 16:25:53,685 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 16:25:53,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:25:53 BoogieIcfgContainer [2024-06-04 16:25:53,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 16:25:53,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 16:25:53,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 16:25:53,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 16:25:53,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:51" (1/4) ... [2024-06-04 16:25:53,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d16c0ef and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:25:53, skipping insertion in model container [2024-06-04 16:25:53,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 04:25:52" (2/4) ... [2024-06-04 16:25:53,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d16c0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:25:53, skipping insertion in model container [2024-06-04 16:25:53,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:53" (3/4) ... [2024-06-04 16:25:53,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d16c0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:25:53, skipping insertion in model container [2024-06-04 16:25:53,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:25:53" (4/4) ... [2024-06-04 16:25:53,692 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2024-06-04 16:25:53,706 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 16:25:53,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-04 16:25:53,707 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 16:25:53,761 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-04 16:25:53,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 53 transitions, 134 flow [2024-06-04 16:25:53,833 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-06-04 16:25:53,834 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-04 16:25:53,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 49 events. 0/49 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-04 16:25:53,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 53 transitions, 134 flow [2024-06-04 16:25:53,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 43 transitions, 98 flow [2024-06-04 16:25:53,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 16:25:53,857 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5af00032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 16:25:53,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-04 16:25:53,862 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 16:25:53,862 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-04 16:25:53,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:25:53,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:53,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 16:25:53,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:25:53,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash -736144642, now seen corresponding path program 1 times [2024-06-04 16:25:53,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:53,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487477647] [2024-06-04 16:25:53,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:53,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:54,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:54,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487477647] [2024-06-04 16:25:54,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487477647] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:54,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:54,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:25:54,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278606613] [2024-06-04 16:25:54,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:54,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:25:54,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:54,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:25:54,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:25:54,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-04 16:25:54,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-06-04 16:25:54,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:54,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-04 16:25:54,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:55,303 INFO L124 PetriNetUnfolderBase]: 10931/14900 cut-off events. [2024-06-04 16:25:55,304 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-06-04 16:25:55,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30172 conditions, 14900 events. 10931/14900 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 81923 event pairs, 3518 based on Foata normal form. 135/14866 useless extension candidates. Maximal degree in co-relation 30156. Up to 13379 conditions per place. [2024-06-04 16:25:55,382 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 52 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-06-04 16:25:55,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 62 transitions, 254 flow [2024-06-04 16:25:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:25:55,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:25:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-06-04 16:25:55,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5849056603773585 [2024-06-04 16:25:55,393 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 98 flow. Second operand 3 states and 93 transitions. [2024-06-04 16:25:55,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 62 transitions, 254 flow [2024-06-04 16:25:55,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 248 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-04 16:25:55,400 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 122 flow [2024-06-04 16:25:55,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2024-06-04 16:25:55,405 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-06-04 16:25:55,405 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 122 flow [2024-06-04 16:25:55,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-06-04 16:25:55,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:55,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:55,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 16:25:55,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:25:55,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:55,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1969386303, now seen corresponding path program 1 times [2024-06-04 16:25:55,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:55,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285225843] [2024-06-04 16:25:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:55,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:55,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:55,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285225843] [2024-06-04 16:25:55,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285225843] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:55,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:55,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:25:55,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430792086] [2024-06-04 16:25:55,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:55,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:25:55,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:55,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:25:55,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:25:55,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-04 16:25:55,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-06-04 16:25:55,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:55,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-04 16:25:55,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:56,395 INFO L124 PetriNetUnfolderBase]: 7948/11743 cut-off events. [2024-06-04 16:25:56,396 INFO L125 PetriNetUnfolderBase]: For 1182/1190 co-relation queries the response was YES. [2024-06-04 16:25:56,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24177 conditions, 11743 events. 7948/11743 cut-off events. For 1182/1190 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 73359 event pairs, 3412 based on Foata normal form. 602/12082 useless extension candidates. Maximal degree in co-relation 24162. Up to 6589 conditions per place. [2024-06-04 16:25:56,553 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 54 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-06-04 16:25:56,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 67 transitions, 284 flow [2024-06-04 16:25:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:25:56,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:25:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-06-04 16:25:56,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2024-06-04 16:25:56,556 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 122 flow. Second operand 3 states and 98 transitions. [2024-06-04 16:25:56,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 67 transitions, 284 flow [2024-06-04 16:25:56,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 67 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 16:25:56,561 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 130 flow [2024-06-04 16:25:56,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2024-06-04 16:25:56,562 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2024-06-04 16:25:56,562 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 130 flow [2024-06-04 16:25:56,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-06-04 16:25:56,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:56,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 16:25:56,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:25:56,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:56,568 INFO L85 PathProgramCache]: Analyzing trace with hash -658294575, now seen corresponding path program 1 times [2024-06-04 16:25:56,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:56,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161148402] [2024-06-04 16:25:56,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:56,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:56,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:56,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:56,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161148402] [2024-06-04 16:25:56,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161148402] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:56,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:56,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:25:56,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155492524] [2024-06-04 16:25:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:56,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:56,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:56,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:56,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:56,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-04 16:25:56,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-04 16:25:56,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:56,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-04 16:25:56,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:57,797 INFO L124 PetriNetUnfolderBase]: 11966/18475 cut-off events. [2024-06-04 16:25:57,798 INFO L125 PetriNetUnfolderBase]: For 592/592 co-relation queries the response was YES. [2024-06-04 16:25:57,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38122 conditions, 18475 events. 11966/18475 cut-off events. For 592/592 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 129445 event pairs, 3571 based on Foata normal form. 258/18289 useless extension candidates. Maximal degree in co-relation 38105. Up to 5296 conditions per place. [2024-06-04 16:25:58,007 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 81 selfloop transitions, 17 changer transitions 0/113 dead transitions. [2024-06-04 16:25:58,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 113 transitions, 476 flow [2024-06-04 16:25:58,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:25:58,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:25:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-06-04 16:25:58,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7132075471698113 [2024-06-04 16:25:58,010 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 130 flow. Second operand 5 states and 189 transitions. [2024-06-04 16:25:58,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 113 transitions, 476 flow [2024-06-04 16:25:58,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 16:25:58,017 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 230 flow [2024-06-04 16:25:58,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=60, PETRI_TRANSITIONS=61} [2024-06-04 16:25:58,017 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 4 predicate places. [2024-06-04 16:25:58,018 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 230 flow [2024-06-04 16:25:58,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-04 16:25:58,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:58,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:58,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 16:25:58,018 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:25:58,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:58,019 INFO L85 PathProgramCache]: Analyzing trace with hash 604223835, now seen corresponding path program 2 times [2024-06-04 16:25:58,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:58,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120089203] [2024-06-04 16:25:58,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:58,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:58,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:58,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120089203] [2024-06-04 16:25:58,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120089203] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:58,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:58,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:25:58,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25516992] [2024-06-04 16:25:58,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:58,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:58,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:58,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:58,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-04 16:25:58,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 230 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-04 16:25:58,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:58,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-04 16:25:58,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:25:59,316 INFO L124 PetriNetUnfolderBase]: 12114/18936 cut-off events. [2024-06-04 16:25:59,316 INFO L125 PetriNetUnfolderBase]: For 8986/9270 co-relation queries the response was YES. [2024-06-04 16:25:59,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48392 conditions, 18936 events. 12114/18936 cut-off events. For 8986/9270 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 135914 event pairs, 3660 based on Foata normal form. 434/18938 useless extension candidates. Maximal degree in co-relation 48373. Up to 5397 conditions per place. [2024-06-04 16:25:59,435 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 81 selfloop transitions, 22 changer transitions 0/118 dead transitions. [2024-06-04 16:25:59,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 118 transitions, 600 flow [2024-06-04 16:25:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:25:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:25:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-06-04 16:25:59,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7132075471698113 [2024-06-04 16:25:59,439 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 230 flow. Second operand 5 states and 189 transitions. [2024-06-04 16:25:59,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 118 transitions, 600 flow [2024-06-04 16:25:59,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 118 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-04 16:25:59,446 INFO L231 Difference]: Finished difference. Result has 66 places, 67 transitions, 327 flow [2024-06-04 16:25:59,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=66, PETRI_TRANSITIONS=67} [2024-06-04 16:25:59,447 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2024-06-04 16:25:59,448 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 67 transitions, 327 flow [2024-06-04 16:25:59,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-06-04 16:25:59,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:59,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:25:59,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-04 16:25:59,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:25:59,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:59,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1776649477, now seen corresponding path program 1 times [2024-06-04 16:25:59,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:59,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613341116] [2024-06-04 16:25:59,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:59,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:59,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:59,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613341116] [2024-06-04 16:25:59,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613341116] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:59,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:59,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 16:25:59,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535161585] [2024-06-04 16:25:59,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:59,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:25:59,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:59,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:25:59,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:25:59,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2024-06-04 16:25:59,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 67 transitions, 327 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-06-04 16:25:59,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:59,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2024-06-04 16:25:59,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:01,634 INFO L124 PetriNetUnfolderBase]: 21745/31699 cut-off events. [2024-06-04 16:26:01,648 INFO L125 PetriNetUnfolderBase]: For 38915/39284 co-relation queries the response was YES. [2024-06-04 16:26:01,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95051 conditions, 31699 events. 21745/31699 cut-off events. For 38915/39284 co-relation queries the response was YES. Maximal size of possible extension queue 1330. Compared 212464 event pairs, 7523 based on Foata normal form. 574/31731 useless extension candidates. Maximal degree in co-relation 95028. Up to 25634 conditions per place. [2024-06-04 16:26:01,880 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 112 selfloop transitions, 15 changer transitions 0/137 dead transitions. [2024-06-04 16:26:01,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 137 transitions, 940 flow [2024-06-04 16:26:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:26:01,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:26:01,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2024-06-04 16:26:01,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5433962264150943 [2024-06-04 16:26:01,885 INFO L175 Difference]: Start difference. First operand has 66 places, 67 transitions, 327 flow. Second operand 5 states and 144 transitions. [2024-06-04 16:26:01,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 137 transitions, 940 flow [2024-06-04 16:26:01,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 137 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 16:26:01,899 INFO L231 Difference]: Finished difference. Result has 71 places, 81 transitions, 488 flow [2024-06-04 16:26:01,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=488, PETRI_PLACES=71, PETRI_TRANSITIONS=81} [2024-06-04 16:26:01,903 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 15 predicate places. [2024-06-04 16:26:01,903 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 81 transitions, 488 flow [2024-06-04 16:26:01,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-06-04 16:26:01,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:26:01,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:01,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-04 16:26:01,904 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:26:01,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:26:01,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1597430906, now seen corresponding path program 1 times [2024-06-04 16:26:01,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:26:01,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947434045] [2024-06-04 16:26:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:26:01,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:26:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:26:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:26:01,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:26:01,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947434045] [2024-06-04 16:26:01,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947434045] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:26:01,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:26:01,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 16:26:01,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21097194] [2024-06-04 16:26:01,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:26:01,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:26:01,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:26:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:26:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:26:02,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2024-06-04 16:26:02,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 81 transitions, 488 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-06-04 16:26:02,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:26:02,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2024-06-04 16:26:02,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:04,130 INFO L124 PetriNetUnfolderBase]: 20770/30998 cut-off events. [2024-06-04 16:26:04,130 INFO L125 PetriNetUnfolderBase]: For 56101/56833 co-relation queries the response was YES. [2024-06-04 16:26:04,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94236 conditions, 30998 events. 20770/30998 cut-off events. For 56101/56833 co-relation queries the response was YES. Maximal size of possible extension queue 1344. Compared 217409 event pairs, 6140 based on Foata normal form. 2164/32772 useless extension candidates. Maximal degree in co-relation 94210. Up to 19647 conditions per place. [2024-06-04 16:26:04,343 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 113 selfloop transitions, 31 changer transitions 5/159 dead transitions. [2024-06-04 16:26:04,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 159 transitions, 1175 flow [2024-06-04 16:26:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:26:04,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:26:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-06-04 16:26:04,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5584905660377358 [2024-06-04 16:26:04,356 INFO L175 Difference]: Start difference. First operand has 71 places, 81 transitions, 488 flow. Second operand 5 states and 148 transitions. [2024-06-04 16:26:04,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 159 transitions, 1175 flow [2024-06-04 16:26:04,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 159 transitions, 1174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 16:26:04,459 INFO L231 Difference]: Finished difference. Result has 75 places, 94 transitions, 742 flow [2024-06-04 16:26:04,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=742, PETRI_PLACES=75, PETRI_TRANSITIONS=94} [2024-06-04 16:26:04,461 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2024-06-04 16:26:04,462 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 94 transitions, 742 flow [2024-06-04 16:26:04,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-06-04 16:26:04,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:26:04,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:04,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-04 16:26:04,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:26:04,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:26:04,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1345042990, now seen corresponding path program 1 times [2024-06-04 16:26:04,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:26:04,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313232604] [2024-06-04 16:26:04,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:26:04,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:26:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:26:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:26:04,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:26:04,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313232604] [2024-06-04 16:26:04,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313232604] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:26:04,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:26:04,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:26:04,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663779539] [2024-06-04 16:26:04,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:26:04,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:26:04,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:26:04,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:26:04,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:26:04,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-04 16:26:04,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 94 transitions, 742 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-06-04 16:26:04,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:26:04,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-04 16:26:04,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:06,097 INFO L124 PetriNetUnfolderBase]: 13882/21725 cut-off events. [2024-06-04 16:26:06,097 INFO L125 PetriNetUnfolderBase]: For 55721/57467 co-relation queries the response was YES. [2024-06-04 16:26:06,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71395 conditions, 21725 events. 13882/21725 cut-off events. For 55721/57467 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 158112 event pairs, 3641 based on Foata normal form. 969/22196 useless extension candidates. Maximal degree in co-relation 71366. Up to 6318 conditions per place. [2024-06-04 16:26:06,277 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 78 selfloop transitions, 56 changer transitions 8/157 dead transitions. [2024-06-04 16:26:06,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 157 transitions, 1370 flow [2024-06-04 16:26:06,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:26:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:26:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 186 transitions. [2024-06-04 16:26:06,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7018867924528301 [2024-06-04 16:26:06,279 INFO L175 Difference]: Start difference. First operand has 75 places, 94 transitions, 742 flow. Second operand 5 states and 186 transitions. [2024-06-04 16:26:06,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 157 transitions, 1370 flow [2024-06-04 16:26:06,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 157 transitions, 1340 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-04 16:26:06,316 INFO L231 Difference]: Finished difference. Result has 77 places, 105 transitions, 1028 flow [2024-06-04 16:26:06,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1028, PETRI_PLACES=77, PETRI_TRANSITIONS=105} [2024-06-04 16:26:06,317 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-06-04 16:26:06,317 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 105 transitions, 1028 flow [2024-06-04 16:26:06,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-06-04 16:26:06,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:26:06,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:06,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-04 16:26:06,318 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 16:26:06,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:26:06,319 INFO L85 PathProgramCache]: Analyzing trace with hash -441693862, now seen corresponding path program 1 times [2024-06-04 16:26:06,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:26:06,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588682324] [2024-06-04 16:26:06,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:26:06,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:26:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:26:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:26:06,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:26:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588682324] [2024-06-04 16:26:06,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588682324] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:26:06,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:26:06,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:26:06,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412866418] [2024-06-04 16:26:06,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:26:06,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:26:06,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:26:06,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:26:06,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:26:06,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-04 16:26:06,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 105 transitions, 1028 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-06-04 16:26:06,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:26:06,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-04 16:26:06,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:07,720 INFO L124 PetriNetUnfolderBase]: 11557/18437 cut-off events. [2024-06-04 16:26:07,720 INFO L125 PetriNetUnfolderBase]: For 66449/67478 co-relation queries the response was YES. [2024-06-04 16:26:07,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65473 conditions, 18437 events. 11557/18437 cut-off events. For 66449/67478 co-relation queries the response was YES. Maximal size of possible extension queue 968. Compared 136411 event pairs, 2999 based on Foata normal form. 581/18554 useless extension candidates. Maximal degree in co-relation 65441. Up to 5699 conditions per place. [2024-06-04 16:26:07,808 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 0 selfloop transitions, 0 changer transitions 163/163 dead transitions. [2024-06-04 16:26:07,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 163 transitions, 1696 flow [2024-06-04 16:26:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:26:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:26:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 183 transitions. [2024-06-04 16:26:07,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.690566037735849 [2024-06-04 16:26:07,810 INFO L175 Difference]: Start difference. First operand has 77 places, 105 transitions, 1028 flow. Second operand 5 states and 183 transitions. [2024-06-04 16:26:07,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 163 transitions, 1696 flow [2024-06-04 16:26:07,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 163 transitions, 1563 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-04 16:26:07,866 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-06-04 16:26:07,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-06-04 16:26:07,868 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 20 predicate places. [2024-06-04 16:26:07,868 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-06-04 16:26:07,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-06-04 16:26:07,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-04 16:26:07,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-04 16:26:07,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-04 16:26:07,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-04 16:26:07,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-04 16:26:07,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-04 16:26:07,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-04 16:26:07,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-04 16:26:07,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-04 16:26:07,875 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:07,882 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 16:26:07,882 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 16:26:07,892 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-04 16:26:07,892 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-04 16:26:07,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 04:26:07 BasicIcfg [2024-06-04 16:26:07,893 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 16:26:07,894 INFO L158 Benchmark]: Toolchain (without parser) took 15218.75ms. Allocated memory was 113.2MB in the beginning and 8.9GB in the end (delta: 8.8GB). Free memory was 85.5MB in the beginning and 7.7GB in the end (delta: -7.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-06-04 16:26:07,894 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:26:07,894 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 113.2MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:26:07,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.47ms. Allocated memory was 113.2MB in the beginning and 169.9MB in the end (delta: 56.6MB). Free memory was 85.3MB in the beginning and 128.9MB in the end (delta: -43.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-06-04 16:26:07,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.28ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 126.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 16:26:07,895 INFO L158 Benchmark]: Boogie Preprocessor took 45.78ms. Allocated memory is still 169.9MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 16:26:07,895 INFO L158 Benchmark]: RCFGBuilder took 576.76ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 124.9MB in the end (delta: -806.3kB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-06-04 16:26:07,895 INFO L158 Benchmark]: TraceAbstraction took 14206.16ms. Allocated memory was 169.9MB in the beginning and 8.9GB in the end (delta: 8.7GB). Free memory was 124.9MB in the beginning and 7.7GB in the end (delta: -7.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-06-04 16:26:07,898 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 113.2MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.47ms. Allocated memory was 113.2MB in the beginning and 169.9MB in the end (delta: 56.6MB). Free memory was 85.3MB in the beginning and 128.9MB in the end (delta: -43.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.28ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 126.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.78ms. Allocated memory is still 169.9MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 576.76ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 124.9MB in the end (delta: -806.3kB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * TraceAbstraction took 14206.16ms. Allocated memory was 169.9MB in the beginning and 8.9GB in the end (delta: 8.7GB). Free memory was 124.9MB in the beginning and 7.7GB in the end (delta: -7.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 137]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 138]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 139]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 140]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 87 locations, 8 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: 14.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 433 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1226 IncrementalHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 25 mSDtfsCounter, 1226 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1028occurred in iteration=7, InterpolantAutomatonStates: 36, 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, 0.8s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 621 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-04 16:26:07,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE