./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.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/test-easy7.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d8006e4b 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.2024-01-24_13-31-21.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-dev-d8006e4-m [2024-02-05 10:36:34,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:36:34,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:36:34,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:36:34,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:36:34,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:36:34,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:36:34,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:36:34,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:36:34,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:36:34,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:36:34,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:36:34,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:36:34,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:36:34,528 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:36:34,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:36:34,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:36:34,529 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:36:34,529 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:36:34,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:36:34,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:36:34,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:36:34,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:36:34,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:36:34,532 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:36:34,532 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:36:34,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:36:34,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:36:34,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:36:34,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:36:34,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:36:34,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:36:34,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:36:34,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:36:34,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:36:34,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:36:34,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:36:34,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:36:34,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:36:34,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:36:34,537 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:36:34,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:36:34,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:36:34,538 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:36:34,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:36:34,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:36:34,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:36:34,849 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:36:34,849 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:36:34,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/test-easy7.wvr.yml/witness.yml [2024-02-05 10:36:35,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:36:35,008 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:36:35,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-02-05 10:36:36,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:36:36,373 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:36:36,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-02-05 10:36:36,381 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8235f5736/d64acb61c8e145a48eb49667c1862566/FLAG0de0e60b2 [2024-02-05 10:36:36,396 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8235f5736/d64acb61c8e145a48eb49667c1862566 [2024-02-05 10:36:36,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:36:36,398 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:36:36,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:36:36,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:36:36,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:36:36,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:36:35" (1/2) ... [2024-02-05 10:36:36,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408be8cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:36:36, skipping insertion in model container [2024-02-05 10:36:36,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:36:35" (1/2) ... [2024-02-05 10:36:36,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e5a0b3d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:36:36, skipping insertion in model container [2024-02-05 10:36:36,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:36:36" (2/2) ... [2024-02-05 10:36:36,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408be8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36, skipping insertion in model container [2024-02-05 10:36:36,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:36:36" (2/2) ... [2024-02-05 10:36:36,411 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:36:36,430 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:36:36,435 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,435 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,435 INFO L101 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,435 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,436 INFO L101 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,436 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,436 INFO L101 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,436 INFO L101 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) [2024-02-05 10:36:36,436 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] x2 == 0U [2024-02-05 10:36:36,436 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,437 INFO L101 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,437 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-02-05 10:36:36,461 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:36:36,607 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] [2024-02-05 10:36:36,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:36:36,621 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 [2024-02-05 10:36:36,697 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] [2024-02-05 10:36:36,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:36:36,716 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:36:36,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36 WrapperNode [2024-02-05 10:36:36,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:36:36,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:36:36,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:36:36,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:36:36,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,762 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-02-05 10:36:36,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:36:36,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:36:36,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:36:36,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:36:36,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,794 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]. [2024-02-05 10:36:36,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:36:36,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:36:36,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:36:36,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:36:36,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (1/1) ... [2024-02-05 10:36:36,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:36:36,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:36:36,858 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) [2024-02-05 10:36:36,863 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 [2024-02-05 10:36:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:36:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-05 10:36:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-05 10:36:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-05 10:36:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-05 10:36:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:36:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:36:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:36:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:36:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:36:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:36:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:36:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:36:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:36:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-05 10:36:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-05 10:36:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-05 10:36:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:36:36,894 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-05 10:36:37,029 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:36:37,032 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:36:37,289 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:36:37,289 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:36:37,444 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:36:37,444 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-05 10:36:37,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:36:37 BoogieIcfgContainer [2024-02-05 10:36:37,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:36:37,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:36:37,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:36:37,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:36:37,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:36:35" (1/4) ... [2024-02-05 10:36:37,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbc0809 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:36:37, skipping insertion in model container [2024-02-05 10:36:37,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:36:36" (2/4) ... [2024-02-05 10:36:37,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbc0809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:36:37, skipping insertion in model container [2024-02-05 10:36:37,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:36" (3/4) ... [2024-02-05 10:36:37,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbc0809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:36:37, skipping insertion in model container [2024-02-05 10:36:37,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:36:37" (4/4) ... [2024-02-05 10:36:37,454 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2024-02-05 10:36:37,471 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:36:37,471 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-02-05 10:36:37,472 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:36:37,536 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-05 10:36:37,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 92 flow [2024-02-05 10:36:37,609 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-02-05 10:36:37,610 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-05 10:36:37,612 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. [2024-02-05 10:36:37,612 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 39 transitions, 92 flow [2024-02-05 10:36:37,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 36 transitions, 84 flow [2024-02-05 10:36:37,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:36:37,638 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;@703ea833, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:36:37,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-02-05 10:36:37,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:36:37,641 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:36:37,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:36:37,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:37,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:36:37,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:37,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:37,648 INFO L85 PathProgramCache]: Analyzing trace with hash 8594, now seen corresponding path program 1 times [2024-02-05 10:36:37,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:37,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463853853] [2024-02-05 10:36:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:37,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:38,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:38,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463853853] [2024-02-05 10:36:38,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463853853] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:38,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:38,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:36:38,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186374549] [2024-02-05 10:36:38,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:38,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:36:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:36:38,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:36:38,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-02-05 10:36:38,061 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) [2024-02-05 10:36:38,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:38,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-02-05 10:36:38,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:38,189 INFO L124 PetriNetUnfolderBase]: 105/267 cut-off events. [2024-02-05 10:36:38,189 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-02-05 10:36:38,193 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. [2024-02-05 10:36:38,199 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 20 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2024-02-05 10:36:38,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 126 flow [2024-02-05 10:36:38,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:36:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:36:38,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-02-05 10:36:38,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5811965811965812 [2024-02-05 10:36:38,216 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 84 flow. Second operand 3 states and 68 transitions. [2024-02-05 10:36:38,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 126 flow [2024-02-05 10:36:38,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-05 10:36:38,223 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 78 flow [2024-02-05 10:36:38,225 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} [2024-02-05 10:36:38,231 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-02-05 10:36:38,231 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 78 flow [2024-02-05 10:36:38,232 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) [2024-02-05 10:36:38,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:38,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-05 10:36:38,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:36:38,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:38,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:38,236 INFO L85 PathProgramCache]: Analyzing trace with hash 266680, now seen corresponding path program 1 times [2024-02-05 10:36:38,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:38,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129467372] [2024-02-05 10:36:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:38,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:38,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:38,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129467372] [2024-02-05 10:36:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129467372] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:38,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:38,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-05 10:36:38,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811397087] [2024-02-05 10:36:38,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:38,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:36:38,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:38,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:36:38,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:36:38,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-02-05 10:36:38,317 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) [2024-02-05 10:36:38,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:38,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-02-05 10:36:38,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:38,437 INFO L124 PetriNetUnfolderBase]: 105/266 cut-off events. [2024-02-05 10:36:38,437 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-05 10:36:38,441 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. [2024-02-05 10:36:38,443 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 19 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2024-02-05 10:36:38,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 118 flow [2024-02-05 10:36:38,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:36:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:36:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-02-05 10:36:38,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5982905982905983 [2024-02-05 10:36:38,455 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 78 flow. Second operand 3 states and 70 transitions. [2024-02-05 10:36:38,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 118 flow [2024-02-05 10:36:38,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:36:38,458 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 76 flow [2024-02-05 10:36:38,458 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} [2024-02-05 10:36:38,459 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2024-02-05 10:36:38,459 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 76 flow [2024-02-05 10:36:38,459 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) [2024-02-05 10:36:38,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:38,459 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-05 10:36:38,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:36:38,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:38,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -644978511, now seen corresponding path program 1 times [2024-02-05 10:36:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:38,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002286017] [2024-02-05 10:36:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:38,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:38,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:38,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002286017] [2024-02-05 10:36:38,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002286017] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:38,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:38,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:36:38,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416565585] [2024-02-05 10:36:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:38,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:36:38,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:36:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:36:38,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-02-05 10:36:38,678 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) [2024-02-05 10:36:38,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:38,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-02-05 10:36:38,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:38,790 INFO L124 PetriNetUnfolderBase]: 123/290 cut-off events. [2024-02-05 10:36:38,791 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-05 10:36:38,792 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. [2024-02-05 10:36:38,794 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 28 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-02-05 10:36:38,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 143 flow [2024-02-05 10:36:38,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:36:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:36:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-02-05 10:36:38,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5064102564102564 [2024-02-05 10:36:38,799 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 76 flow. Second operand 4 states and 79 transitions. [2024-02-05 10:36:38,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 143 flow [2024-02-05 10:36:38,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 139 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:36:38,800 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 66 flow [2024-02-05 10:36:38,800 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} [2024-02-05 10:36:38,802 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -8 predicate places. [2024-02-05 10:36:38,802 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 66 flow [2024-02-05 10:36:38,802 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) [2024-02-05 10:36:38,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:38,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:36:38,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-05 10:36:38,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:38,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1349652897, now seen corresponding path program 1 times [2024-02-05 10:36:38,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:38,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835883759] [2024-02-05 10:36:38,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:38,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:38,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:38,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835883759] [2024-02-05 10:36:38,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835883759] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:38,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:38,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:36:38,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117463529] [2024-02-05 10:36:38,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:38,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:36:38,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:38,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:36:38,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:36:38,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-02-05 10:36:38,960 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) [2024-02-05 10:36:38,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:38,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-02-05 10:36:38,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:39,050 INFO L124 PetriNetUnfolderBase]: 123/240 cut-off events. [2024-02-05 10:36:39,050 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-05 10:36:39,051 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. [2024-02-05 10:36:39,052 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 33 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-02-05 10:36:39,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 153 flow [2024-02-05 10:36:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:36:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:36:39,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-02-05 10:36:39,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2024-02-05 10:36:39,054 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 66 flow. Second operand 4 states and 84 transitions. [2024-02-05 10:36:39,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 153 flow [2024-02-05 10:36:39,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:36:39,055 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 57 flow [2024-02-05 10:36:39,055 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} [2024-02-05 10:36:39,056 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2024-02-05 10:36:39,056 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 57 flow [2024-02-05 10:36:39,057 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) [2024-02-05 10:36:39,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:39,057 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] [2024-02-05 10:36:39,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-05 10:36:39,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:39,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1270703872, now seen corresponding path program 1 times [2024-02-05 10:36:39,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:39,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045831606] [2024-02-05 10:36:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:39,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:39,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:39,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045831606] [2024-02-05 10:36:39,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045831606] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:39,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:39,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-05 10:36:39,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424465414] [2024-02-05 10:36:39,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:39,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-05 10:36:39,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:39,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-05 10:36:39,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-05 10:36:39,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-02-05 10:36:39,556 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) [2024-02-05 10:36:39,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:39,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-02-05 10:36:39,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:39,849 INFO L124 PetriNetUnfolderBase]: 147/294 cut-off events. [2024-02-05 10:36:39,849 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-02-05 10:36:39,850 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. [2024-02-05 10:36:39,851 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 27 selfloop transitions, 19 changer transitions 28/77 dead transitions. [2024-02-05 10:36:39,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 77 transitions, 329 flow [2024-02-05 10:36:39,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-05 10:36:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-02-05 10:36:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-02-05 10:36:39,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7106227106227107 [2024-02-05 10:36:39,854 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 57 flow. Second operand 7 states and 194 transitions. [2024-02-05 10:36:39,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 77 transitions, 329 flow [2024-02-05 10:36:39,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 77 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:36:39,856 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 177 flow [2024-02-05 10:36:39,856 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} [2024-02-05 10:36:39,857 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2024-02-05 10:36:39,857 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 177 flow [2024-02-05 10:36:39,857 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) [2024-02-05 10:36:39,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:39,858 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] [2024-02-05 10:36:39,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-05 10:36:39,858 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:39,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1479721156, now seen corresponding path program 2 times [2024-02-05 10:36:39,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:39,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527423605] [2024-02-05 10:36:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:39,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:40,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527423605] [2024-02-05 10:36:40,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527423605] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:40,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:40,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-05 10:36:40,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688898697] [2024-02-05 10:36:40,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:40,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-05 10:36:40,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:40,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-05 10:36:40,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-05 10:36:40,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-02-05 10:36:40,230 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) [2024-02-05 10:36:40,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:40,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-02-05 10:36:40,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:40,550 INFO L124 PetriNetUnfolderBase]: 142/287 cut-off events. [2024-02-05 10:36:40,550 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-02-05 10:36:40,552 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. [2024-02-05 10:36:40,553 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 24 selfloop transitions, 21 changer transitions 38/86 dead transitions. [2024-02-05 10:36:40,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 517 flow [2024-02-05 10:36:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-05 10:36:40,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-02-05 10:36:40,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-02-05 10:36:40,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7106227106227107 [2024-02-05 10:36:40,557 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 177 flow. Second operand 7 states and 194 transitions. [2024-02-05 10:36:40,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 517 flow [2024-02-05 10:36:40,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 86 transitions, 515 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-02-05 10:36:40,565 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 274 flow [2024-02-05 10:36:40,565 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} [2024-02-05 10:36:40,568 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-02-05 10:36:40,568 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 274 flow [2024-02-05 10:36:40,568 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) [2024-02-05 10:36:40,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:40,569 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] [2024-02-05 10:36:40,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-05 10:36:40,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:40,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:40,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2008466764, now seen corresponding path program 3 times [2024-02-05 10:36:40,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:40,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963420467] [2024-02-05 10:36:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:40,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:40,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:40,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963420467] [2024-02-05 10:36:40,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963420467] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:40,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:40,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-05 10:36:40,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202602317] [2024-02-05 10:36:40,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:40,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-05 10:36:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:40,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-05 10:36:40,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-05 10:36:40,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-02-05 10:36:40,970 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) [2024-02-05 10:36:40,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:40,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-02-05 10:36:40,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:41,243 INFO L124 PetriNetUnfolderBase]: 116/243 cut-off events. [2024-02-05 10:36:41,243 INFO L125 PetriNetUnfolderBase]: For 598/598 co-relation queries the response was YES. [2024-02-05 10:36:41,245 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. [2024-02-05 10:36:41,246 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 21 selfloop transitions, 15 changer transitions 40/79 dead transitions. [2024-02-05 10:36:41,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 79 transitions, 650 flow [2024-02-05 10:36:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-05 10:36:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-02-05 10:36:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2024-02-05 10:36:41,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6886446886446886 [2024-02-05 10:36:41,248 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 274 flow. Second operand 7 states and 188 transitions. [2024-02-05 10:36:41,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 79 transitions, 650 flow [2024-02-05 10:36:41,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 79 transitions, 606 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-02-05 10:36:41,253 INFO L231 Difference]: Finished difference. Result has 52 places, 33 transitions, 277 flow [2024-02-05 10:36:41,253 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} [2024-02-05 10:36:41,254 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-02-05 10:36:41,254 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 33 transitions, 277 flow [2024-02-05 10:36:41,254 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) [2024-02-05 10:36:41,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:41,255 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] [2024-02-05 10:36:41,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-05 10:36:41,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:41,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1110170756, now seen corresponding path program 4 times [2024-02-05 10:36:41,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:41,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154178038] [2024-02-05 10:36:41,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:41,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:41,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:41,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154178038] [2024-02-05 10:36:41,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154178038] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:41,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:41,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-05 10:36:41,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381200146] [2024-02-05 10:36:41,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:41,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-05 10:36:41,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:41,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-05 10:36:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-05 10:36:41,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-02-05 10:36:41,574 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) [2024-02-05 10:36:41,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:41,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-02-05 10:36:41,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:41,778 INFO L124 PetriNetUnfolderBase]: 76/173 cut-off events. [2024-02-05 10:36:41,778 INFO L125 PetriNetUnfolderBase]: For 758/758 co-relation queries the response was YES. [2024-02-05 10:36:41,779 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. [2024-02-05 10:36:41,780 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 18 selfloop transitions, 7 changer transitions 34/62 dead transitions. [2024-02-05 10:36:41,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 611 flow [2024-02-05 10:36:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-05 10:36:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-02-05 10:36:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2024-02-05 10:36:41,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6446886446886447 [2024-02-05 10:36:41,782 INFO L175 Difference]: Start difference. First operand has 52 places, 33 transitions, 277 flow. Second operand 7 states and 176 transitions. [2024-02-05 10:36:41,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 611 flow [2024-02-05 10:36:41,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 62 transitions, 529 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-02-05 10:36:41,786 INFO L231 Difference]: Finished difference. Result has 54 places, 24 transitions, 186 flow [2024-02-05 10:36:41,787 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} [2024-02-05 10:36:41,787 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-02-05 10:36:41,788 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 24 transitions, 186 flow [2024-02-05 10:36:41,788 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) [2024-02-05 10:36:41,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:41,788 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] [2024-02-05 10:36:41,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-05 10:36:41,789 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-05 10:36:41,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1480084254, now seen corresponding path program 5 times [2024-02-05 10:36:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:41,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761157954] [2024-02-05 10:36:41,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:42,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:42,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761157954] [2024-02-05 10:36:42,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761157954] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:42,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:42,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-05 10:36:42,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066144539] [2024-02-05 10:36:42,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:42,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-05 10:36:42,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-05 10:36:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-02-05 10:36:42,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 39 [2024-02-05 10:36:42,072 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) [2024-02-05 10:36:42,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:42,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 39 [2024-02-05 10:36:42,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:42,189 INFO L124 PetriNetUnfolderBase]: 27/71 cut-off events. [2024-02-05 10:36:42,189 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2024-02-05 10:36:42,189 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. [2024-02-05 10:36:42,190 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2024-02-05 10:36:42,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 30 transitions, 252 flow [2024-02-05 10:36:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-05 10:36:42,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-02-05 10:36:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2024-02-05 10:36:42,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5421245421245421 [2024-02-05 10:36:42,191 INFO L175 Difference]: Start difference. First operand has 54 places, 24 transitions, 186 flow. Second operand 7 states and 148 transitions. [2024-02-05 10:36:42,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 30 transitions, 252 flow [2024-02-05 10:36:42,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 140 flow, removed 29 selfloop flow, removed 19 redundant places. [2024-02-05 10:36:42,193 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2024-02-05 10:36:42,193 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} [2024-02-05 10:36:42,194 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2024-02-05 10:36:42,194 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2024-02-05 10:36:42,194 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) [2024-02-05 10:36:42,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 25 remaining) [2024-02-05 10:36:42,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 25 remaining) [2024-02-05 10:36:42,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 25 remaining) [2024-02-05 10:36:42,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 25 remaining) [2024-02-05 10:36:42,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 25 remaining) [2024-02-05 10:36:42,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 25 remaining) [2024-02-05 10:36:42,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 25 remaining) [2024-02-05 10:36:42,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 25 remaining) [2024-02-05 10:36:42,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 25 remaining) [2024-02-05 10:36:42,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 25 remaining) [2024-02-05 10:36:42,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 25 remaining) [2024-02-05 10:36:42,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 25 remaining) [2024-02-05 10:36:42,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (12 of 25 remaining) [2024-02-05 10:36:42,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-02-05 10:36:42,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-02-05 10:36:42,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 25 remaining) [2024-02-05 10:36:42,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 25 remaining) [2024-02-05 10:36:42,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 25 remaining) [2024-02-05 10:36:42,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 25 remaining) [2024-02-05 10:36:42,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 25 remaining) [2024-02-05 10:36:42,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 25 remaining) [2024-02-05 10:36:42,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 25 remaining) [2024-02-05 10:36:42,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 25 remaining) [2024-02-05 10:36:42,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 25 remaining) [2024-02-05 10:36:42,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 25 remaining) [2024-02-05 10:36:42,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-05 10:36:42,205 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2024-02-05 10:36:42,211 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-05 10:36:42,211 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-05 10:36:42,216 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-02-05 10:36:42,216 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-02-05 10:36:42,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 10:36:42 BasicIcfg [2024-02-05 10:36:42,217 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-05 10:36:42,217 INFO L158 Benchmark]: Toolchain (without parser) took 5819.68ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 105.7MB in the beginning and 158.3MB in the end (delta: -52.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-02-05 10:36:42,218 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-05 10:36:42,218 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 176.2MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-05 10:36:42,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.19ms. Allocated memory is still 176.2MB. Free memory was 105.5MB in the beginning and 91.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-02-05 10:36:42,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.45ms. Allocated memory is still 176.2MB. Free memory was 91.0MB in the beginning and 89.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-05 10:36:42,219 INFO L158 Benchmark]: Boogie Preprocessor took 45.15ms. Allocated memory is still 176.2MB. Free memory was 89.4MB in the beginning and 87.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-05 10:36:42,221 INFO L158 Benchmark]: RCFGBuilder took 635.82ms. Allocated memory is still 176.2MB. Free memory was 87.4MB in the beginning and 125.2MB in the end (delta: -37.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-02-05 10:36:42,221 INFO L158 Benchmark]: TraceAbstraction took 4769.76ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 125.2MB in the beginning and 158.3MB in the end (delta: -33.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-02-05 10:36:42,222 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 117.4MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.44ms. Allocated memory is still 176.2MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.19ms. Allocated memory is still 176.2MB. Free memory was 105.5MB in the beginning and 91.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.45ms. Allocated memory is still 176.2MB. Free memory was 91.0MB in the beginning and 89.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.15ms. Allocated memory is still 176.2MB. Free memory was 89.4MB in the beginning and 87.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 635.82ms. Allocated memory is still 176.2MB. Free memory was 87.4MB in the beginning and 125.2MB in the end (delta: -37.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4769.76ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 125.2MB in the beginning and 158.3MB in the end (delta: -33.0MB). Peak memory consumption was 38.3MB. 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: 4.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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, 2.0s 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! [2024-02-05 10:36:42,248 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