./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 cde23df1 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-cde23df-m [2024-06-14 14:18:44,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:18:44,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:18:44,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:18:44,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:18:44,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:18:44,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:18:44,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:18:44,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:18:44,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:18:44,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:18:44,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:18:44,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:18:44,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:18:44,348 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:18:44,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:18:44,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:18:44,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:18:44,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:18:44,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:18:44,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:18:44,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:18:44,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:18:44,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:18:44,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:18:44,350 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:18:44,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:18:44,351 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:18:44,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:18:44,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:18:44,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:18:44,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:18:44,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:18:44,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:18:44,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:18:44,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:18:44,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:18:44,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:18:44,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:18:44,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:18:44,354 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:18:44,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:18:44,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:18:44,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:18:44,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:18:44,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:18:44,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:18:44,582 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:18:44,582 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:18:44,583 INFO L431 ainManager$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 [2024-06-14 14:18:44,641 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:18:44,643 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:18:44,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2024-06-14 14:18:45,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:18:45,722 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:18:45,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2024-06-14 14:18:45,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cadae8970/9cb203c9d298404d8709f76945211da1/FLAG5a4e5a8ef [2024-06-14 14:18:45,737 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cadae8970/9cb203c9d298404d8709f76945211da1 [2024-06-14 14:18:45,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:18:45,739 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:18:45,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:18:45,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:18:45,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:18:45,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:44" (1/2) ... [2024-06-14 14:18:45,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f70e3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:45, skipping insertion in model container [2024-06-14 14:18:45,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:44" (1/2) ... [2024-06-14 14:18:45,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@74aa1f99 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:45, skipping insertion in model container [2024-06-14 14:18:45,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:18:45" (2/2) ... [2024-06-14 14:18:45,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f70e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:45, skipping insertion in model container [2024-06-14 14:18:45,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:18:45" (2/2) ... [2024-06-14 14:18:45,750 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:18:45,762 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:18:45,762 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) [2024-06-14 14:18:45,763 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) [2024-06-14 14:18:45,763 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) [2024-06-14 14:18:45,763 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) [2024-06-14 14:18:45,763 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:18:45,763 INFO L106 edCorrectnessWitness]: ghost_update [L136-L136] multithreaded = 1; [2024-06-14 14:18:45,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:18:45,939 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:18:45,946 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:18:46,002 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:18:46,014 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:18:46,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46 WrapperNode [2024-06-14 14:18:46,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:18:46,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:18:46,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:18:46,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:18:46,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,055 INFO L138 Inliner]: procedures = 22, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 195 [2024-06-14 14:18:46,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:18:46,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:18:46,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:18:46,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:18:46,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,067 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,079 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]. [2024-06-14 14:18:46,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:18:46,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:18:46,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:18:46,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:18:46,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (1/1) ... [2024-06-14 14:18:46,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:18:46,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:18:46,133 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) [2024-06-14 14:18:46,146 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 [2024-06-14 14:18:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:18:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:18:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:18:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:18:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:18:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:18:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:18:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 14:18:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 14:18:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:18:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:18:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:18:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:18:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:18:46,178 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:18:46,275 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:18:46,277 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:18:46,541 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:18:46,541 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:18:46,694 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:18:46,694 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:18:46,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:18:46 BoogieIcfgContainer [2024-06-14 14:18:46,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:18:46,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:18:46,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:18:46,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:18:46,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:44" (1/4) ... [2024-06-14 14:18:46,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2407a379 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:18:46, skipping insertion in model container [2024-06-14 14:18:46,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:18:45" (2/4) ... [2024-06-14 14:18:46,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2407a379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:18:46, skipping insertion in model container [2024-06-14 14:18:46,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:46" (3/4) ... [2024-06-14 14:18:46,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2407a379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:18:46, skipping insertion in model container [2024-06-14 14:18:46,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:18:46" (4/4) ... [2024-06-14 14:18:46,717 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2024-06-14 14:18:46,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:18:46,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-14 14:18:46,732 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:18:46,780 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-14 14:18:46,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 53 transitions, 134 flow [2024-06-14 14:18:46,835 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-06-14 14:18:46,836 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-14 14:18:46,837 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. [2024-06-14 14:18:46,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 53 transitions, 134 flow [2024-06-14 14:18:46,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 43 transitions, 98 flow [2024-06-14 14:18:46,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:18:46,855 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;@7d4091b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:18:46,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-14 14:18:46,860 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:18:46,861 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 14:18:46,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:18:46,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:46,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:18:46,862 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)] === [2024-06-14 14:18:46,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:46,867 INFO L85 PathProgramCache]: Analyzing trace with hash -736144642, now seen corresponding path program 1 times [2024-06-14 14:18:46,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:46,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742468852] [2024-06-14 14:18:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:46,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:47,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:47,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742468852] [2024-06-14 14:18:47,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742468852] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:47,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:47,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:18:47,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459875254] [2024-06-14 14:18:47,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:47,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:18:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:47,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:18:47,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:18:47,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-14 14:18:47,288 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) [2024-06-14 14:18:47,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:47,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-14 14:18:47,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:48,409 INFO L124 PetriNetUnfolderBase]: 10931/14900 cut-off events. [2024-06-14 14:18:48,409 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-06-14 14:18:48,429 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. [2024-06-14 14:18:48,483 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 52 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-06-14 14:18:48,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 62 transitions, 254 flow [2024-06-14 14:18:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:18:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:18:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-06-14 14:18:48,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5849056603773585 [2024-06-14 14:18:48,494 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 98 flow. Second operand 3 states and 93 transitions. [2024-06-14 14:18:48,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 62 transitions, 254 flow [2024-06-14 14:18:48,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 248 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-14 14:18:48,503 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 122 flow [2024-06-14 14:18:48,505 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} [2024-06-14 14:18:48,507 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-06-14 14:18:48,508 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 122 flow [2024-06-14 14:18:48,508 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) [2024-06-14 14:18:48,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:48,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:48,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:18:48,508 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)] === [2024-06-14 14:18:48,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1969386303, now seen corresponding path program 1 times [2024-06-14 14:18:48,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:48,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947991105] [2024-06-14 14:18:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:48,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:48,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:48,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947991105] [2024-06-14 14:18:48,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947991105] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:48,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:48,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:18:48,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313280848] [2024-06-14 14:18:48,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:48,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:18:48,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:18:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:18:48,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-14 14:18:48,688 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) [2024-06-14 14:18:48,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:48,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-14 14:18:48,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:49,425 INFO L124 PetriNetUnfolderBase]: 7948/11743 cut-off events. [2024-06-14 14:18:49,425 INFO L125 PetriNetUnfolderBase]: For 1182/1190 co-relation queries the response was YES. [2024-06-14 14:18:49,442 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. [2024-06-14 14:18:49,479 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 54 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-06-14 14:18:49,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 67 transitions, 284 flow [2024-06-14 14:18:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:18:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:18:49,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-06-14 14:18:49,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2024-06-14 14:18:49,482 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 122 flow. Second operand 3 states and 98 transitions. [2024-06-14 14:18:49,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 67 transitions, 284 flow [2024-06-14 14:18:49,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 67 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:18:49,483 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 130 flow [2024-06-14 14:18:49,484 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} [2024-06-14 14:18:49,484 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2024-06-14 14:18:49,485 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 130 flow [2024-06-14 14:18:49,485 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) [2024-06-14 14:18:49,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:49,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:49,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:18:49,485 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)] === [2024-06-14 14:18:49,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:49,486 INFO L85 PathProgramCache]: Analyzing trace with hash -658294575, now seen corresponding path program 1 times [2024-06-14 14:18:49,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:49,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956275204] [2024-06-14 14:18:49,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:49,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:49,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956275204] [2024-06-14 14:18:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956275204] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:49,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:49,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:18:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923165709] [2024-06-14 14:18:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:49,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:49,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-14 14:18:49,604 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) [2024-06-14 14:18:49,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:49,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-14 14:18:49,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:50,686 INFO L124 PetriNetUnfolderBase]: 11966/18475 cut-off events. [2024-06-14 14:18:50,686 INFO L125 PetriNetUnfolderBase]: For 592/592 co-relation queries the response was YES. [2024-06-14 14:18:50,732 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. [2024-06-14 14:18:50,791 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 81 selfloop transitions, 17 changer transitions 0/113 dead transitions. [2024-06-14 14:18:50,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 113 transitions, 476 flow [2024-06-14 14:18:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:50,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-06-14 14:18:50,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7132075471698113 [2024-06-14 14:18:50,796 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 130 flow. Second operand 5 states and 189 transitions. [2024-06-14 14:18:50,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 113 transitions, 476 flow [2024-06-14 14:18:50,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:18:50,807 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 230 flow [2024-06-14 14:18:50,807 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} [2024-06-14 14:18:50,808 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 4 predicate places. [2024-06-14 14:18:50,808 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 230 flow [2024-06-14 14:18:50,808 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) [2024-06-14 14:18:50,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:50,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:50,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:18:50,809 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)] === [2024-06-14 14:18:50,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:50,809 INFO L85 PathProgramCache]: Analyzing trace with hash 604223835, now seen corresponding path program 2 times [2024-06-14 14:18:50,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:50,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878657828] [2024-06-14 14:18:50,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:50,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:50,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:50,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878657828] [2024-06-14 14:18:50,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878657828] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:50,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:50,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:18:50,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928849384] [2024-06-14 14:18:50,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:50,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:50,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:50,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:50,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-14 14:18:50,904 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) [2024-06-14 14:18:50,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:50,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-14 14:18:50,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:52,167 INFO L124 PetriNetUnfolderBase]: 12114/18936 cut-off events. [2024-06-14 14:18:52,167 INFO L125 PetriNetUnfolderBase]: For 8986/9270 co-relation queries the response was YES. [2024-06-14 14:18:52,232 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. [2024-06-14 14:18:52,308 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 81 selfloop transitions, 22 changer transitions 0/118 dead transitions. [2024-06-14 14:18:52,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 118 transitions, 600 flow [2024-06-14 14:18:52,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:52,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-06-14 14:18:52,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7132075471698113 [2024-06-14 14:18:52,310 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 230 flow. Second operand 5 states and 189 transitions. [2024-06-14 14:18:52,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 118 transitions, 600 flow [2024-06-14 14:18:52,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 118 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-14 14:18:52,315 INFO L231 Difference]: Finished difference. Result has 66 places, 67 transitions, 327 flow [2024-06-14 14:18:52,315 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} [2024-06-14 14:18:52,315 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2024-06-14 14:18:52,316 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 67 transitions, 327 flow [2024-06-14 14:18:52,316 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) [2024-06-14 14:18:52,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:52,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:52,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:18:52,317 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)] === [2024-06-14 14:18:52,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1776649477, now seen corresponding path program 1 times [2024-06-14 14:18:52,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:52,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436695180] [2024-06-14 14:18:52,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:52,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:52,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:52,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:52,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436695180] [2024-06-14 14:18:52,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436695180] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:52,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:52,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:18:52,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253144002] [2024-06-14 14:18:52,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:52,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:52,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:52,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:52,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:52,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2024-06-14 14:18:52,549 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) [2024-06-14 14:18:52,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:52,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2024-06-14 14:18:52,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:54,528 INFO L124 PetriNetUnfolderBase]: 21745/31699 cut-off events. [2024-06-14 14:18:54,529 INFO L125 PetriNetUnfolderBase]: For 38915/39284 co-relation queries the response was YES. [2024-06-14 14:18:54,626 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. [2024-06-14 14:18:54,767 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 112 selfloop transitions, 15 changer transitions 0/137 dead transitions. [2024-06-14 14:18:54,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 137 transitions, 940 flow [2024-06-14 14:18:54,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2024-06-14 14:18:54,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5433962264150943 [2024-06-14 14:18:54,769 INFO L175 Difference]: Start difference. First operand has 66 places, 67 transitions, 327 flow. Second operand 5 states and 144 transitions. [2024-06-14 14:18:54,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 137 transitions, 940 flow [2024-06-14 14:18:54,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 137 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:18:54,784 INFO L231 Difference]: Finished difference. Result has 71 places, 81 transitions, 488 flow [2024-06-14 14:18:54,784 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} [2024-06-14 14:18:54,791 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 15 predicate places. [2024-06-14 14:18:54,791 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 81 transitions, 488 flow [2024-06-14 14:18:54,792 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) [2024-06-14 14:18:54,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:54,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:54,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 14:18:54,792 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)] === [2024-06-14 14:18:54,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1597430906, now seen corresponding path program 1 times [2024-06-14 14:18:54,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:54,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799951027] [2024-06-14 14:18:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:54,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:54,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799951027] [2024-06-14 14:18:54,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799951027] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:54,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:54,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:18:54,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264223546] [2024-06-14 14:18:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:54,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2024-06-14 14:18:54,927 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) [2024-06-14 14:18:54,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:54,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2024-06-14 14:18:54,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:56,796 INFO L124 PetriNetUnfolderBase]: 20770/30998 cut-off events. [2024-06-14 14:18:56,796 INFO L125 PetriNetUnfolderBase]: For 56101/56833 co-relation queries the response was YES. [2024-06-14 14:18:56,866 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. [2024-06-14 14:18:56,921 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 113 selfloop transitions, 31 changer transitions 5/159 dead transitions. [2024-06-14 14:18:56,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 159 transitions, 1175 flow [2024-06-14 14:18:56,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-06-14 14:18:56,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5584905660377358 [2024-06-14 14:18:56,923 INFO L175 Difference]: Start difference. First operand has 71 places, 81 transitions, 488 flow. Second operand 5 states and 148 transitions. [2024-06-14 14:18:56,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 159 transitions, 1175 flow [2024-06-14 14:18:56,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 159 transitions, 1174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:18:56,981 INFO L231 Difference]: Finished difference. Result has 75 places, 94 transitions, 742 flow [2024-06-14 14:18:56,981 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} [2024-06-14 14:18:56,984 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2024-06-14 14:18:56,984 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 94 transitions, 742 flow [2024-06-14 14:18:56,984 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) [2024-06-14 14:18:56,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:56,984 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] [2024-06-14 14:18:56,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 14:18:56,985 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)] === [2024-06-14 14:18:56,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:56,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1345042990, now seen corresponding path program 1 times [2024-06-14 14:18:56,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:56,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869682181] [2024-06-14 14:18:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:56,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:57,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:57,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869682181] [2024-06-14 14:18:57,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869682181] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:57,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:57,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:18:57,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336864901] [2024-06-14 14:18:57,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:57,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:57,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:57,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:57,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:57,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-14 14:18:57,059 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) [2024-06-14 14:18:57,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:57,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-14 14:18:57,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:58,637 INFO L124 PetriNetUnfolderBase]: 13882/21725 cut-off events. [2024-06-14 14:18:58,639 INFO L125 PetriNetUnfolderBase]: For 55721/57467 co-relation queries the response was YES. [2024-06-14 14:18:58,686 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. [2024-06-14 14:18:58,721 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 78 selfloop transitions, 56 changer transitions 8/157 dead transitions. [2024-06-14 14:18:58,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 157 transitions, 1370 flow [2024-06-14 14:18:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 186 transitions. [2024-06-14 14:18:58,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7018867924528301 [2024-06-14 14:18:58,723 INFO L175 Difference]: Start difference. First operand has 75 places, 94 transitions, 742 flow. Second operand 5 states and 186 transitions. [2024-06-14 14:18:58,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 157 transitions, 1370 flow [2024-06-14 14:18:58,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 157 transitions, 1340 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:18:58,756 INFO L231 Difference]: Finished difference. Result has 77 places, 105 transitions, 1028 flow [2024-06-14 14:18:58,757 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} [2024-06-14 14:18:58,758 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-06-14 14:18:58,758 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 105 transitions, 1028 flow [2024-06-14 14:18:58,758 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) [2024-06-14 14:18:58,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:58,759 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] [2024-06-14 14:18:58,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 14:18:58,759 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)] === [2024-06-14 14:18:58,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:58,759 INFO L85 PathProgramCache]: Analyzing trace with hash -441693862, now seen corresponding path program 1 times [2024-06-14 14:18:58,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:58,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731059474] [2024-06-14 14:18:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:58,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:58,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:58,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731059474] [2024-06-14 14:18:58,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731059474] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:58,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:58,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:18:58,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422206708] [2024-06-14 14:18:58,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:58,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:58,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:58,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:58,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:58,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-06-14 14:18:58,841 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) [2024-06-14 14:18:58,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:58,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-06-14 14:18:58,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:00,097 INFO L124 PetriNetUnfolderBase]: 11557/18437 cut-off events. [2024-06-14 14:19:00,098 INFO L125 PetriNetUnfolderBase]: For 66449/67478 co-relation queries the response was YES. [2024-06-14 14:19:00,141 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. [2024-06-14 14:19:00,153 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 0 selfloop transitions, 0 changer transitions 163/163 dead transitions. [2024-06-14 14:19:00,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 163 transitions, 1696 flow [2024-06-14 14:19:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:19:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:19:00,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 183 transitions. [2024-06-14 14:19:00,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.690566037735849 [2024-06-14 14:19:00,155 INFO L175 Difference]: Start difference. First operand has 77 places, 105 transitions, 1028 flow. Second operand 5 states and 183 transitions. [2024-06-14 14:19:00,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 163 transitions, 1696 flow [2024-06-14 14:19:00,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 163 transitions, 1563 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-14 14:19:00,181 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-06-14 14:19:00,181 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} [2024-06-14 14:19:00,182 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 20 predicate places. [2024-06-14 14:19:00,183 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-06-14 14:19:00,183 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) [2024-06-14 14:19:00,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-14 14:19:00,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-14 14:19:00,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-14 14:19:00,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-14 14:19:00,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-14 14:19:00,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-14 14:19:00,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-14 14:19:00,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-14 14:19:00,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 14:19:00,187 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:00,190 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:19:00,190 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:19:00,196 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-14 14:19:00,196 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-14 14:19:00,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:19:00 BasicIcfg [2024-06-14 14:19:00,197 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:19:00,197 INFO L158 Benchmark]: Toolchain (without parser) took 14458.49ms. Allocated memory was 167.8MB in the beginning and 9.2GB in the end (delta: 9.1GB). Free memory was 101.7MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-06-14 14:19:00,197 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:19:00,198 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:19:00,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.46ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 129.5MB in the end (delta: -27.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-06-14 14:19:00,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.58ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 126.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:19:00,198 INFO L158 Benchmark]: Boogie Preprocessor took 44.50ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 124.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:19:00,199 INFO L158 Benchmark]: RCFGBuilder took 591.08ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 133.9MB in the end (delta: -9.4MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2024-06-14 14:19:00,199 INFO L158 Benchmark]: TraceAbstraction took 13485.80ms. Allocated memory was 218.1MB in the beginning and 9.2GB in the end (delta: 9.0GB). Free memory was 185.5MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-06-14 14:19:00,202 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 0.14ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.46ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 129.5MB in the end (delta: -27.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.58ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 126.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.50ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 124.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.08ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 133.9MB in the end (delta: -9.4MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13485.80ms. Allocated memory was 218.1MB in the beginning and 9.2GB in the end (delta: 9.0GB). Free memory was 185.5MB in the beginning and 8.2GB in the end (delta: -8.1GB). 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: 13.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 433 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.6s 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, 0.9s 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! [2024-06-14 14:19:00,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE