./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-easy7.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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/test-easy7.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-easy7.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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:11:56,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:11:56,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:11:56,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:11:56,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:11:56,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:11:56,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:11:56,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:11:56,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:11:56,438 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:11:56,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:11:56,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:11:56,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:11:56,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:11:56,440 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:11:56,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:11:56,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:11:56,441 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:11:56,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:11:56,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:11:56,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:11:56,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:11:56,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:11:56,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:11:56,443 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:11:56,444 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:11:56,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:11:56,444 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:11:56,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:11:56,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:11:56,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:11:56,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:11:56,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:11:56,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:11:56,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:11:56,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:11:56,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:11:56,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:11:56,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:11:56,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:11:56,448 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:11:56,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:11:56,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:11:56,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:11:56,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:11:56,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:11:56,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:11:56,687 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:11:56,688 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:11:56,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-easy7.wvr.yml/witness.yml [2024-01-31 16:11:56,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:11:56,783 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:11:56,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-01-31 16:11:57,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:11:58,128 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:11:58,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-01-31 16:11:58,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368ddc4a7/d0fe5b2f1d5047be9fc3de7dfa6937d8/FLAG425aabeba [2024-01-31 16:11:58,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368ddc4a7/d0fe5b2f1d5047be9fc3de7dfa6937d8 [2024-01-31 16:11:58,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:11:58,146 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:11:58,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:11:58,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:11:58,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:11:58,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:11:56" (1/2) ... [2024-01-31 16:11:58,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3911f70e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:11:58, skipping insertion in model container [2024-01-31 16:11:58,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:11:56" (1/2) ... [2024-01-31 16:11:58,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@714d7850 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:11:58, skipping insertion in model container [2024-01-31 16:11:58,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:11:58" (2/2) ... [2024-01-31 16:11:58,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3911f70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58, skipping insertion in model container [2024-01-31 16:11:58,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:11:58" (2/2) ... [2024-01-31 16:11:58,154 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:11:58,172 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:11:58,173 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,173 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,173 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,173 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,173 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] x2 == 0U [2024-01-31 16:11:58,174 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,174 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,174 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,174 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,174 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((((((0LL - (long long )x1) + (long long )x2 >= 0LL) && ((long long )x1 + (long long )x2 >= 0LL)) && ((0LL - (long long )x1) - (long long )x2 >= 0LL)) && ((long long )x1 - (long long )x2 >= 0LL)) && (x1 == 0U)) && (x2 == 0U) [2024-01-31 16:11:58,174 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,175 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-31 16:11:58,191 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:11:58,363 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c[1898,1911] [2024-01-31 16:11:58,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:11:58,374 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:11:58,414 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c[1898,1911] [2024-01-31 16:11:58,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:11:58,429 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:11:58,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58 WrapperNode [2024-01-31 16:11:58,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:11:58,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:11:58,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:11:58,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:11:58,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,488 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-01-31 16:11:58,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:11:58,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:11:58,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:11:58,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:11:58,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,509 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,536 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-31 16:11:58,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:11:58,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:11:58,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:11:58,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:11:58,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (1/1) ... [2024-01-31 16:11:58,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:11:58,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:11:58,590 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) [2024-01-31 16:11:58,619 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 [2024-01-31 16:11:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:11:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 16:11:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 16:11:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 16:11:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 16:11:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:11:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:11:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:11:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:11:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:11:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:11:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:11:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:11:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:11:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 16:11:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 16:11:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 16:11:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:11:58,642 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:11:58,755 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:11:58,757 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:11:59,010 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:11:59,010 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:11:59,159 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:11:59,159 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:11:59,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:11:59 BoogieIcfgContainer [2024-01-31 16:11:59,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:11:59,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:11:59,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:11:59,165 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:11:59,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:11:56" (1/4) ... [2024-01-31 16:11:59,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e6ff14 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:11:59, skipping insertion in model container [2024-01-31 16:11:59,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:11:58" (2/4) ... [2024-01-31 16:11:59,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e6ff14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:11:59, skipping insertion in model container [2024-01-31 16:11:59,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:58" (3/4) ... [2024-01-31 16:11:59,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e6ff14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:11:59, skipping insertion in model container [2024-01-31 16:11:59,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:11:59" (4/4) ... [2024-01-31 16:11:59,168 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2024-01-31 16:11:59,184 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:11:59,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-01-31 16:11:59,184 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:11:59,244 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-31 16:11:59,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 92 flow [2024-01-31 16:11:59,323 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-01-31 16:11:59,323 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 16:11:59,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 37 events. 0/37 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-31 16:11:59,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 39 transitions, 92 flow [2024-01-31 16:11:59,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 36 transitions, 84 flow [2024-01-31 16:11:59,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:11:59,353 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;@375ec091, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:11:59,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-01-31 16:11:59,356 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:11:59,356 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:11:59,356 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:11:59,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:11:59,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:11:59,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:11:59,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:11:59,362 INFO L85 PathProgramCache]: Analyzing trace with hash 8594, now seen corresponding path program 1 times [2024-01-31 16:11:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:11:59,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202146719] [2024-01-31 16:11:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:11:59,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:11:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:11:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:11:59,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:11:59,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202146719] [2024-01-31 16:11:59,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202146719] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:11:59,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:11:59,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:11:59,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421352097] [2024-01-31 16:11:59,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:11:59,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:11:59,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:11:59,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:11:59,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:11:59,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-01-31 16:11:59,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-01-31 16:11:59,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:11:59,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-01-31 16:11:59,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:11:59,848 INFO L124 PetriNetUnfolderBase]: 105/267 cut-off events. [2024-01-31 16:11:59,849 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-01-31 16:11:59,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 267 events. 105/267 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1155 event pairs, 105 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 427. Up to 207 conditions per place. [2024-01-31 16:11:59,857 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 20 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2024-01-31 16:11:59,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 126 flow [2024-01-31 16:11:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:11:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:11:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-01-31 16:11:59,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5811965811965812 [2024-01-31 16:11:59,873 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 84 flow. Second operand 3 states and 68 transitions. [2024-01-31 16:11:59,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 126 flow [2024-01-31 16:11:59,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-31 16:11:59,878 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 78 flow [2024-01-31 16:11:59,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2024-01-31 16:11:59,884 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-01-31 16:11:59,884 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 78 flow [2024-01-31 16:11:59,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-01-31 16:11:59,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:11:59,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-31 16:11:59,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:11:59,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:11:59,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:11:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash 266680, now seen corresponding path program 1 times [2024-01-31 16:11:59,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:11:59,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918148344] [2024-01-31 16:11:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:11:59,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:11:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:11:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:11:59,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:11:59,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918148344] [2024-01-31 16:11:59,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918148344] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:11:59,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:11:59,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:11:59,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787512820] [2024-01-31 16:11:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:11:59,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:11:59,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:11:59,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:11:59,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:11:59,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-01-31 16:11:59,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-01-31 16:11:59,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:11:59,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-01-31 16:11:59,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:00,027 INFO L124 PetriNetUnfolderBase]: 105/266 cut-off events. [2024-01-31 16:12:00,028 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 16:12:00,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 266 events. 105/266 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1156 event pairs, 105 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 475. Up to 205 conditions per place. [2024-01-31 16:12:00,034 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 19 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2024-01-31 16:12:00,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 118 flow [2024-01-31 16:12:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:12:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:12:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-01-31 16:12:00,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5982905982905983 [2024-01-31 16:12:00,041 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 78 flow. Second operand 3 states and 70 transitions. [2024-01-31 16:12:00,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 118 flow [2024-01-31 16:12:00,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:12:00,045 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 76 flow [2024-01-31 16:12:00,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-01-31 16:12:00,046 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2024-01-31 16:12:00,046 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 76 flow [2024-01-31 16:12:00,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-01-31 16:12:00,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:00,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:12:00,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:12:00,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:12:00,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash -644978511, now seen corresponding path program 1 times [2024-01-31 16:12:00,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:00,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017275389] [2024-01-31 16:12:00,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:00,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:00,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017275389] [2024-01-31 16:12:00,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017275389] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:00,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:00,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:12:00,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241242849] [2024-01-31 16:12:00,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:00,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:12:00,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:12:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:12:00,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-01-31 16:12:00,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2024-01-31 16:12:00,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:00,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-01-31 16:12:00,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:00,391 INFO L124 PetriNetUnfolderBase]: 123/290 cut-off events. [2024-01-31 16:12:00,391 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 16:12:00,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 290 events. 123/290 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1209 event pairs, 65 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 530. Up to 216 conditions per place. [2024-01-31 16:12:00,394 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 28 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-01-31 16:12:00,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 143 flow [2024-01-31 16:12:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:12:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:12:00,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-01-31 16:12:00,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5064102564102564 [2024-01-31 16:12:00,398 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 76 flow. Second operand 4 states and 79 transitions. [2024-01-31 16:12:00,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 143 flow [2024-01-31 16:12:00,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 139 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:12:00,401 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 66 flow [2024-01-31 16:12:00,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2024-01-31 16:12:00,402 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -8 predicate places. [2024-01-31 16:12:00,403 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 66 flow [2024-01-31 16:12:00,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2024-01-31 16:12:00,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:00,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:12:00,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:12:00,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:12:00,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1349652897, now seen corresponding path program 1 times [2024-01-31 16:12:00,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:00,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050496169] [2024-01-31 16:12:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:00,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:00,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050496169] [2024-01-31 16:12:00,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050496169] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:00,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:00,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:12:00,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060535474] [2024-01-31 16:12:00,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:00,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:12:00,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:00,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:12:00,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:12:00,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-01-31 16:12:00,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-01-31 16:12:00,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:00,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-01-31 16:12:00,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:00,594 INFO L124 PetriNetUnfolderBase]: 123/240 cut-off events. [2024-01-31 16:12:00,594 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-31 16:12:00,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 240 events. 123/240 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 819 event pairs, 5 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 475. Up to 194 conditions per place. [2024-01-31 16:12:00,596 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 33 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-01-31 16:12:00,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 153 flow [2024-01-31 16:12:00,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:12:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:12:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-01-31 16:12:00,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2024-01-31 16:12:00,598 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 66 flow. Second operand 4 states and 84 transitions. [2024-01-31 16:12:00,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 153 flow [2024-01-31 16:12:00,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:12:00,600 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 57 flow [2024-01-31 16:12:00,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=57, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2024-01-31 16:12:00,602 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2024-01-31 16:12:00,602 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 57 flow [2024-01-31 16:12:00,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-01-31 16:12:00,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:00,602 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, 1] [2024-01-31 16:12:00,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:12:00,603 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:12:00,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:00,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1270703872, now seen corresponding path program 1 times [2024-01-31 16:12:00,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:00,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356710849] [2024-01-31 16:12:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:00,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:01,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:01,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:01,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356710849] [2024-01-31 16:12:01,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356710849] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:01,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:01,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 16:12:01,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113767676] [2024-01-31 16:12:01,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:01,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:12:01,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:01,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:12:01,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:12:01,076 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-01-31 16:12:01,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 57 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:01,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:01,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-01-31 16:12:01,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:01,361 INFO L124 PetriNetUnfolderBase]: 147/294 cut-off events. [2024-01-31 16:12:01,361 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-01-31 16:12:01,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 294 events. 147/294 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1036 event pairs, 13 based on Foata normal form. 1/295 useless extension candidates. Maximal degree in co-relation 589. Up to 158 conditions per place. [2024-01-31 16:12:01,362 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 27 selfloop transitions, 19 changer transitions 28/77 dead transitions. [2024-01-31 16:12:01,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 77 transitions, 329 flow [2024-01-31 16:12:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:12:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:12:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-01-31 16:12:01,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7106227106227107 [2024-01-31 16:12:01,365 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 57 flow. Second operand 7 states and 194 transitions. [2024-01-31 16:12:01,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 77 transitions, 329 flow [2024-01-31 16:12:01,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 77 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:12:01,367 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 177 flow [2024-01-31 16:12:01,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=177, PETRI_PLACES=39, PETRI_TRANSITIONS=39} [2024-01-31 16:12:01,368 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2024-01-31 16:12:01,368 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 177 flow [2024-01-31 16:12:01,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:01,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:01,369 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, 1] [2024-01-31 16:12:01,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:12:01,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:12:01,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:01,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1479721156, now seen corresponding path program 2 times [2024-01-31 16:12:01,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:01,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701836718] [2024-01-31 16:12:01,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:01,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:01,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:01,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701836718] [2024-01-31 16:12:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701836718] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:01,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:01,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 16:12:01,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751780878] [2024-01-31 16:12:01,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:01,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:12:01,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:01,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:12:01,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:12:01,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-01-31 16:12:01,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 39 transitions, 177 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:01,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:01,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-01-31 16:12:01,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:02,037 INFO L124 PetriNetUnfolderBase]: 142/287 cut-off events. [2024-01-31 16:12:02,037 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-01-31 16:12:02,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 287 events. 142/287 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 994 event pairs, 18 based on Foata normal form. 1/288 useless extension candidates. Maximal degree in co-relation 840. Up to 124 conditions per place. [2024-01-31 16:12:02,039 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 24 selfloop transitions, 21 changer transitions 38/86 dead transitions. [2024-01-31 16:12:02,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 517 flow [2024-01-31 16:12:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:12:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:12:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-01-31 16:12:02,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7106227106227107 [2024-01-31 16:12:02,041 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 177 flow. Second operand 7 states and 194 transitions. [2024-01-31 16:12:02,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 517 flow [2024-01-31 16:12:02,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 86 transitions, 515 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-31 16:12:02,045 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 274 flow [2024-01-31 16:12:02,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=274, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2024-01-31 16:12:02,045 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-01-31 16:12:02,046 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 274 flow [2024-01-31 16:12:02,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:02,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:02,046 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, 1] [2024-01-31 16:12:02,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 16:12:02,047 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:12:02,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:02,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2008466764, now seen corresponding path program 3 times [2024-01-31 16:12:02,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:02,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091564271] [2024-01-31 16:12:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:02,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:02,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:02,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:02,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091564271] [2024-01-31 16:12:02,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091564271] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:02,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:02,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 16:12:02,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945519784] [2024-01-31 16:12:02,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:02,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:12:02,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:02,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:12:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:12:02,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-01-31 16:12:02,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:02,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:02,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-01-31 16:12:02,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:02,652 INFO L124 PetriNetUnfolderBase]: 116/243 cut-off events. [2024-01-31 16:12:02,653 INFO L125 PetriNetUnfolderBase]: For 598/598 co-relation queries the response was YES. [2024-01-31 16:12:02,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 243 events. 116/243 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 806 event pairs, 20 based on Foata normal form. 1/244 useless extension candidates. Maximal degree in co-relation 985. Up to 90 conditions per place. [2024-01-31 16:12:02,655 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 21 selfloop transitions, 15 changer transitions 40/79 dead transitions. [2024-01-31 16:12:02,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 79 transitions, 650 flow [2024-01-31 16:12:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:12:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:12:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2024-01-31 16:12:02,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6886446886446886 [2024-01-31 16:12:02,657 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 274 flow. Second operand 7 states and 188 transitions. [2024-01-31 16:12:02,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 79 transitions, 650 flow [2024-01-31 16:12:02,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 79 transitions, 606 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-01-31 16:12:02,663 INFO L231 Difference]: Finished difference. Result has 52 places, 33 transitions, 277 flow [2024-01-31 16:12:02,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=277, PETRI_PLACES=52, PETRI_TRANSITIONS=33} [2024-01-31 16:12:02,664 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-01-31 16:12:02,665 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 33 transitions, 277 flow [2024-01-31 16:12:02,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:02,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:02,665 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, 1] [2024-01-31 16:12:02,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 16:12:02,666 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:12:02,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1110170756, now seen corresponding path program 4 times [2024-01-31 16:12:02,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:02,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588475372] [2024-01-31 16:12:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:02,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:02,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588475372] [2024-01-31 16:12:02,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588475372] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:02,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:02,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 16:12:02,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349651225] [2024-01-31 16:12:02,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:02,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:12:02,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:02,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:12:02,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:12:02,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-01-31 16:12:02,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 33 transitions, 277 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:02,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:02,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-01-31 16:12:02,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:03,140 INFO L124 PetriNetUnfolderBase]: 76/173 cut-off events. [2024-01-31 16:12:03,141 INFO L125 PetriNetUnfolderBase]: For 758/758 co-relation queries the response was YES. [2024-01-31 16:12:03,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 173 events. 76/173 cut-off events. For 758/758 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 496 event pairs, 19 based on Foata normal form. 1/174 useless extension candidates. Maximal degree in co-relation 804. Up to 56 conditions per place. [2024-01-31 16:12:03,142 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 18 selfloop transitions, 7 changer transitions 34/62 dead transitions. [2024-01-31 16:12:03,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 611 flow [2024-01-31 16:12:03,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:12:03,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:12:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2024-01-31 16:12:03,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6446886446886447 [2024-01-31 16:12:03,144 INFO L175 Difference]: Start difference. First operand has 52 places, 33 transitions, 277 flow. Second operand 7 states and 176 transitions. [2024-01-31 16:12:03,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 611 flow [2024-01-31 16:12:03,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 62 transitions, 529 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-01-31 16:12:03,148 INFO L231 Difference]: Finished difference. Result has 54 places, 24 transitions, 186 flow [2024-01-31 16:12:03,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=186, PETRI_PLACES=54, PETRI_TRANSITIONS=24} [2024-01-31 16:12:03,151 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-01-31 16:12:03,151 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 24 transitions, 186 flow [2024-01-31 16:12:03,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:03,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:03,152 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, 1] [2024-01-31 16:12:03,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 16:12:03,152 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-01-31 16:12:03,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:03,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1480084254, now seen corresponding path program 5 times [2024-01-31 16:12:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:03,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299363260] [2024-01-31 16:12:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:03,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:03,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:03,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299363260] [2024-01-31 16:12:03,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299363260] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:03,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:03,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 16:12:03,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996038059] [2024-01-31 16:12:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:03,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:12:03,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:12:03,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:12:03,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-01-31 16:12:03,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 24 transitions, 186 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:03,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:03,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-01-31 16:12:03,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:03,535 INFO L124 PetriNetUnfolderBase]: 27/71 cut-off events. [2024-01-31 16:12:03,535 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2024-01-31 16:12:03,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 71 events. 27/71 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 4 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 289. Up to 29 conditions per place. [2024-01-31 16:12:03,536 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2024-01-31 16:12:03,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 30 transitions, 252 flow [2024-01-31 16:12:03,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:12:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:12:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2024-01-31 16:12:03,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5421245421245421 [2024-01-31 16:12:03,538 INFO L175 Difference]: Start difference. First operand has 54 places, 24 transitions, 186 flow. Second operand 7 states and 148 transitions. [2024-01-31 16:12:03,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 30 transitions, 252 flow [2024-01-31 16:12:03,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 140 flow, removed 29 selfloop flow, removed 19 redundant places. [2024-01-31 16:12:03,539 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2024-01-31 16:12:03,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2024-01-31 16:12:03,540 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2024-01-31 16:12:03,540 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2024-01-31 16:12:03,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-01-31 16:12:03,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 25 remaining) [2024-01-31 16:12:03,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 25 remaining) [2024-01-31 16:12:03,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 25 remaining) [2024-01-31 16:12:03,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 25 remaining) [2024-01-31 16:12:03,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 25 remaining) [2024-01-31 16:12:03,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 25 remaining) [2024-01-31 16:12:03,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 25 remaining) [2024-01-31 16:12:03,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 25 remaining) [2024-01-31 16:12:03,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 25 remaining) [2024-01-31 16:12:03,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 25 remaining) [2024-01-31 16:12:03,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 25 remaining) [2024-01-31 16:12:03,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 25 remaining) [2024-01-31 16:12:03,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (12 of 25 remaining) [2024-01-31 16:12:03,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-01-31 16:12:03,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-01-31 16:12:03,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 25 remaining) [2024-01-31 16:12:03,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 25 remaining) [2024-01-31 16:12:03,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 25 remaining) [2024-01-31 16:12:03,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 25 remaining) [2024-01-31 16:12:03,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 25 remaining) [2024-01-31 16:12:03,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 25 remaining) [2024-01-31 16:12:03,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 25 remaining) [2024-01-31 16:12:03,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 25 remaining) [2024-01-31 16:12:03,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 25 remaining) [2024-01-31 16:12:03,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 25 remaining) [2024-01-31 16:12:03,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-31 16:12:03,549 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2024-01-31 16:12:03,554 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:12:03,554 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:12:03,558 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-01-31 16:12:03,558 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-01-31 16:12:03,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:12:03 BasicIcfg [2024-01-31 16:12:03,559 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:12:03,560 INFO L158 Benchmark]: Toolchain (without parser) took 5413.90ms. Allocated memory was 159.4MB in the beginning and 295.7MB in the end (delta: 136.3MB). Free memory was 103.5MB in the beginning and 222.8MB in the end (delta: -119.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-01-31 16:12:03,560 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:12:03,560 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 159.4MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:12:03,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.60ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 88.8MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-01-31 16:12:03,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.24ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 87.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:12:03,561 INFO L158 Benchmark]: Boogie Preprocessor took 65.31ms. Allocated memory is still 159.4MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:12:03,561 INFO L158 Benchmark]: RCFGBuilder took 604.13ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 121.1MB in the end (delta: -36.2MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2024-01-31 16:12:03,561 INFO L158 Benchmark]: TraceAbstraction took 4397.03ms. Allocated memory was 159.4MB in the beginning and 295.7MB in the end (delta: 136.3MB). Free memory was 120.3MB in the beginning and 222.8MB in the end (delta: -102.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-01-31 16:12:03,563 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 0.20ms. Allocated memory is still 159.4MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.74ms. Allocated memory is still 159.4MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.60ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 88.8MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.24ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 87.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.31ms. Allocated memory is still 159.4MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.13ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 121.1MB in the end (delta: -36.2MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4397.03ms. Allocated memory was 159.4MB in the beginning and 295.7MB in the end (delta: 136.3MB). Free memory was 120.3MB in the beginning and 222.8MB in the end (delta: -102.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 42]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 43]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 44]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 46]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 50]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 51]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 52]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 53]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 55]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 61]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 62]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 72]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 66 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1788 IncrementalHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 8 mSDtfsCounter, 1788 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=7, InterpolantAutomatonStates: 49, 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, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 1590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:12:03,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE