./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-subst.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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/chl-sre-subst.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-subst.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-ab2e0ac-m [2024-01-29 14:18:09,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:18:09,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:18:09,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:18:09,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:18:09,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:18:09,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:18:09,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:18:09,825 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:18:09,828 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:18:09,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:18:09,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:18:09,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:18:09,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:18:09,830 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:18:09,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:18:09,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:18:09,831 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:18:09,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:18:09,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:18:09,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:18:09,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:18:09,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:18:09,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:18:09,833 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:18:09,833 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:18:09,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:18:09,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:18:09,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:18:09,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:18:09,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:18:09,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:18:09,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:09,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:18:09,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:18:09,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:18:09,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:18:09,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:18:09,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:18:09,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:18:09,837 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:18:09,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:18:09,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:18:09,838 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:18:10,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:18:10,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:18:10,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:18:10,129 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:18:10,129 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:18:10,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2024-01-29 14:18:11,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:18:11,507 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:18:11,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2024-01-29 14:18:11,515 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845db9b9a/8135f43d549f44248459769b73b91b83/FLAG06f7d9ccf [2024-01-29 14:18:11,529 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845db9b9a/8135f43d549f44248459769b73b91b83 [2024-01-29 14:18:11,531 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:18:11,532 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:18:11,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-subst.wvr.yml/witness.yml [2024-01-29 14:18:11,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:18:11,626 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:18:11,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:11,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:18:11,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:18:11,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:11" (1/2) ... [2024-01-29 14:18:11,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f557dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:11, skipping insertion in model container [2024-01-29 14:18:11,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:11" (1/2) ... [2024-01-29 14:18:11,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@217dfc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:11, skipping insertion in model container [2024-01-29 14:18:11,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:11" (2/2) ... [2024-01-29 14:18:11,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f557dbb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11, skipping insertion in model container [2024-01-29 14:18:11,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:11" (2/2) ... [2024-01-29 14:18:11,635 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:18:11,654 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:18:11,655 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_5 == 0 [2024-01-29 14:18:11,656 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_4 == 0 [2024-01-29 14:18:11,656 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-29 14:18:11,656 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_3 == 0 [2024-01-29 14:18:11,656 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_2 == (_Bool)0 [2024-01-29 14:18:11,657 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:11,657 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-29 14:18:11,657 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:18:11,657 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_5 == 0 [2024-01-29 14:18:11,657 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_1 == (_Bool)0 [2024-01-29 14:18:11,657 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_2 == (_Bool)0 [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_4 == 0 [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_3 == 0 [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_3 == 0 [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_5 == 0 [2024-01-29 14:18:11,658 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_2 == (_Bool)0 || sponsored_2 == (_Bool)1 [2024-01-29 14:18:11,659 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_4 == 0 [2024-01-29 14:18:11,659 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:11,659 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:18:11,659 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_5 == 0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_0 == (_Bool)0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_4 == 0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_1 == (_Bool)0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_2 == (_Bool)0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_3 == 0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_4 == 0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_3 == 0 [2024-01-29 14:18:11,660 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_5 == 0 [2024-01-29 14:18:11,661 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:11,661 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-29 14:18:11,661 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_2 == (_Bool)0 [2024-01-29 14:18:11,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:18:11,838 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/chl-sre-subst.wvr.c[2372,2385] [2024-01-29 14:18:11,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:11,852 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:18:11,861 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry 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 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:18:11,912 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/chl-sre-subst.wvr.c[2372,2385] [2024-01-29 14:18:11,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:11,926 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:18:11,926 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11 WrapperNode [2024-01-29 14:18:11,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:11,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:11,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:18:11,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:18:11,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:11,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:11,983 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-01-29 14:18:11,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:11,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:18:11,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:18:11,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:18:11,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:11,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,031 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-29 14:18:12,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:18:12,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:18:12,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:18:12,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:18:12,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (1/1) ... [2024-01-29 14:18:12,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:12,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:18:12,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:18:12,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:18:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:18:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:18:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:18:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:18:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:18:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:18:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:18:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:18:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:18:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:18:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:18:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:18:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:18:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:18:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:18:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:18:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:18:12,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:18:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:18:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:18:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:18:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:18:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:18:12,146 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:18:12,278 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:18:12,280 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:18:12,571 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:18:12,572 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:18:12,699 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:18:12,700 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:18:12,700 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:12 BoogieIcfgContainer [2024-01-29 14:18:12,700 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:18:12,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:18:12,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:18:12,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:18:12,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:18:11" (1/4) ... [2024-01-29 14:18:12,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859a340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:18:12, skipping insertion in model container [2024-01-29 14:18:12,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:11" (2/4) ... [2024-01-29 14:18:12,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859a340 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:12, skipping insertion in model container [2024-01-29 14:18:12,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:11" (3/4) ... [2024-01-29 14:18:12,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859a340 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:12, skipping insertion in model container [2024-01-29 14:18:12,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:12" (4/4) ... [2024-01-29 14:18:12,711 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2024-01-29 14:18:12,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:18:12,725 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-01-29 14:18:12,725 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:18:12,780 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-29 14:18:12,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 75 transitions, 171 flow [2024-01-29 14:18:12,857 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2024-01-29 14:18:12,857 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:18:12,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 72 events. 0/72 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-29 14:18:12,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 75 transitions, 171 flow [2024-01-29 14:18:12,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 71 transitions, 160 flow [2024-01-29 14:18:12,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:18:12,885 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;@9718b85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:18:12,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-01-29 14:18:12,888 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:18:12,888 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:18:12,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:18:12,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:12,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:18:12,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-29 14:18:12,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:12,894 INFO L85 PathProgramCache]: Analyzing trace with hash 9632, now seen corresponding path program 1 times [2024-01-29 14:18:12,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:12,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697235736] [2024-01-29 14:18:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:12,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:13,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:13,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697235736] [2024-01-29 14:18:13,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697235736] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:13,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:13,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:13,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331277878] [2024-01-29 14:18:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:13,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:13,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:13,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:13,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:13,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 75 [2024-01-29 14:18:13,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 71 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:13,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 75 [2024-01-29 14:18:13,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:13,239 INFO L124 PetriNetUnfolderBase]: 138/322 cut-off events. [2024-01-29 14:18:13,239 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-01-29 14:18:13,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 322 events. 138/322 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1117 event pairs, 20 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 497. Up to 196 conditions per place. [2024-01-29 14:18:13,247 INFO L140 encePairwiseOnDemand]: 68/75 looper letters, 33 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2024-01-29 14:18:13,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 248 flow [2024-01-29 14:18:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:13,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-01-29 14:18:13,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7511111111111111 [2024-01-29 14:18:13,260 INFO L175 Difference]: Start difference. First operand has 81 places, 71 transitions, 160 flow. Second operand 3 states and 169 transitions. [2024-01-29 14:18:13,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 248 flow [2024-01-29 14:18:13,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 76 transitions, 232 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 14:18:13,270 INFO L231 Difference]: Finished difference. Result has 73 places, 67 transitions, 146 flow [2024-01-29 14:18:13,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=73, PETRI_TRANSITIONS=67} [2024-01-29 14:18:13,273 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -8 predicate places. [2024-01-29 14:18:13,274 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 146 flow [2024-01-29 14:18:13,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:13,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:18:13,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:18:13,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-29 14:18:13,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash 298857, now seen corresponding path program 1 times [2024-01-29 14:18:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:13,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926838077] [2024-01-29 14:18:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:13,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:13,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926838077] [2024-01-29 14:18:13,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926838077] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:13,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:13,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:13,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441587048] [2024-01-29 14:18:13,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:13,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:13,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:13,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:13,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:13,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-29 14:18:13,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:13,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-29 14:18:13,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:13,496 INFO L124 PetriNetUnfolderBase]: 138/311 cut-off events. [2024-01-29 14:18:13,497 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-01-29 14:18:13,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 311 events. 138/311 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 957 event pairs, 138 based on Foata normal form. 3/302 useless extension candidates. Maximal degree in co-relation 357. Up to 246 conditions per place. [2024-01-29 14:18:13,499 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 22 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-01-29 14:18:13,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 188 flow [2024-01-29 14:18:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-29 14:18:13,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-29 14:18:13,501 INFO L175 Difference]: Start difference. First operand has 73 places, 67 transitions, 146 flow. Second operand 3 states and 168 transitions. [2024-01-29 14:18:13,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 188 flow [2024-01-29 14:18:13,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:13,502 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 138 flow [2024-01-29 14:18:13,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2024-01-29 14:18:13,503 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -11 predicate places. [2024-01-29 14:18:13,503 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 138 flow [2024-01-29 14:18:13,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:13,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:18:13,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:18:13,504 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-29 14:18:13,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:13,505 INFO L85 PathProgramCache]: Analyzing trace with hash 9264886, now seen corresponding path program 1 times [2024-01-29 14:18:13,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:13,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461749080] [2024-01-29 14:18:13,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:13,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:13,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:13,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461749080] [2024-01-29 14:18:13,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461749080] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:13,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:13,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:13,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676459755] [2024-01-29 14:18:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:13,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:13,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:13,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:13,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:13,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-29 14:18:13,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:13,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-29 14:18:13,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:13,629 INFO L124 PetriNetUnfolderBase]: 138/309 cut-off events. [2024-01-29 14:18:13,629 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-29 14:18:13,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 309 events. 138/309 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 959 event pairs, 138 based on Foata normal form. 2/300 useless extension candidates. Maximal degree in co-relation 537. Up to 248 conditions per place. [2024-01-29 14:18:13,635 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 23 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-29 14:18:13,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 184 flow [2024-01-29 14:18:13,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:13,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-29 14:18:13,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-29 14:18:13,641 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 138 flow. Second operand 3 states and 168 transitions. [2024-01-29 14:18:13,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 184 flow [2024-01-29 14:18:13,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:13,644 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 134 flow [2024-01-29 14:18:13,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2024-01-29 14:18:13,645 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2024-01-29 14:18:13,645 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 134 flow [2024-01-29 14:18:13,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:13,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:18:13,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:18:13,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-29 14:18:13,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:13,648 INFO L85 PathProgramCache]: Analyzing trace with hash 287211755, now seen corresponding path program 1 times [2024-01-29 14:18:13,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:13,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656880128] [2024-01-29 14:18:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:13,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:13,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:13,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:13,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656880128] [2024-01-29 14:18:13,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656880128] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:13,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:13,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:13,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033863996] [2024-01-29 14:18:13,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:13,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:13,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:13,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:13,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 75 [2024-01-29 14:18:13,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:13,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 75 [2024-01-29 14:18:13,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:13,814 INFO L124 PetriNetUnfolderBase]: 138/317 cut-off events. [2024-01-29 14:18:13,815 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-01-29 14:18:13,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 317 events. 138/317 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1125 event pairs, 28 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 558. Up to 179 conditions per place. [2024-01-29 14:18:13,818 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 33 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-01-29 14:18:13,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 67 transitions, 216 flow [2024-01-29 14:18:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2024-01-29 14:18:13,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.76 [2024-01-29 14:18:13,821 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 134 flow. Second operand 3 states and 171 transitions. [2024-01-29 14:18:13,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 67 transitions, 216 flow [2024-01-29 14:18:13,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:13,825 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 126 flow [2024-01-29 14:18:13,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2024-01-29 14:18:13,827 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -17 predicate places. [2024-01-29 14:18:13,828 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 126 flow [2024-01-29 14:18:13,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:13,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:18:13,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:18:13,839 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-29 14:18:13,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash 313630117, now seen corresponding path program 1 times [2024-01-29 14:18:13,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:13,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288872376] [2024-01-29 14:18:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:13,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:13,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288872376] [2024-01-29 14:18:13,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288872376] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:13,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:13,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:13,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115305850] [2024-01-29 14:18:13,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:13,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:13,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:13,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:13,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:13,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-29 14:18:13,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:13,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:13,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-29 14:18:13,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:14,038 INFO L124 PetriNetUnfolderBase]: 138/304 cut-off events. [2024-01-29 14:18:14,045 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-01-29 14:18:14,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 304 events. 138/304 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 956 event pairs, 138 based on Foata normal form. 1/301 useless extension candidates. Maximal degree in co-relation 184. Up to 250 conditions per place. [2024-01-29 14:18:14,047 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 24 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2024-01-29 14:18:14,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 57 transitions, 176 flow [2024-01-29 14:18:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:14,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-29 14:18:14,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-29 14:18:14,048 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 126 flow. Second operand 3 states and 168 transitions. [2024-01-29 14:18:14,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 57 transitions, 176 flow [2024-01-29 14:18:14,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 57 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:14,050 INFO L231 Difference]: Finished difference. Result has 63 places, 57 transitions, 124 flow [2024-01-29 14:18:14,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=63, PETRI_TRANSITIONS=57} [2024-01-29 14:18:14,050 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2024-01-29 14:18:14,051 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 57 transitions, 124 flow [2024-01-29 14:18:14,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:14,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:14,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:14,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:18:14,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-29 14:18:14,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1132599311, now seen corresponding path program 1 times [2024-01-29 14:18:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:14,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660842183] [2024-01-29 14:18:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:14,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:14,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:14,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660842183] [2024-01-29 14:18:14,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660842183] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:14,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:14,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:14,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395407646] [2024-01-29 14:18:14,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:14,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:14,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:14,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:14,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:14,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 75 [2024-01-29 14:18:14,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 57 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:14,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:14,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 75 [2024-01-29 14:18:14,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:14,182 INFO L124 PetriNetUnfolderBase]: 138/308 cut-off events. [2024-01-29 14:18:14,182 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-01-29 14:18:14,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 308 events. 138/308 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1021 event pairs, 48 based on Foata normal form. 1/304 useless extension candidates. Maximal degree in co-relation 561. Up to 145 conditions per place. [2024-01-29 14:18:14,184 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 32 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-29 14:18:14,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 204 flow [2024-01-29 14:18:14,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2024-01-29 14:18:14,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7688888888888888 [2024-01-29 14:18:14,235 INFO L175 Difference]: Start difference. First operand has 63 places, 57 transitions, 124 flow. Second operand 3 states and 173 transitions. [2024-01-29 14:18:14,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 204 flow [2024-01-29 14:18:14,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:14,236 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 116 flow [2024-01-29 14:18:14,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2024-01-29 14:18:14,237 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -22 predicate places. [2024-01-29 14:18:14,237 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 116 flow [2024-01-29 14:18:14,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:14,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:14,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:14,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:18:14,238 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-29 14:18:14,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:14,239 INFO L85 PathProgramCache]: Analyzing trace with hash 750840564, now seen corresponding path program 1 times [2024-01-29 14:18:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622153000] [2024-01-29 14:18:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:14,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:14,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:18:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:14,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:18:14,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:18:14,277 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 34 remaining) [2024-01-29 14:18:14,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 34 remaining) [2024-01-29 14:18:14,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 34 remaining) [2024-01-29 14:18:14,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 34 remaining) [2024-01-29 14:18:14,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 34 remaining) [2024-01-29 14:18:14,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 34 remaining) [2024-01-29 14:18:14,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 34 remaining) [2024-01-29 14:18:14,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 34 remaining) [2024-01-29 14:18:14,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 34 remaining) [2024-01-29 14:18:14,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 34 remaining) [2024-01-29 14:18:14,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 34 remaining) [2024-01-29 14:18:14,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 34 remaining) [2024-01-29 14:18:14,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 34 remaining) [2024-01-29 14:18:14,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 34 remaining) [2024-01-29 14:18:14,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 34 remaining) [2024-01-29 14:18:14,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 34 remaining) [2024-01-29 14:18:14,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 34 remaining) [2024-01-29 14:18:14,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 34 remaining) [2024-01-29 14:18:14,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 34 remaining) [2024-01-29 14:18:14,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 34 remaining) [2024-01-29 14:18:14,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 34 remaining) [2024-01-29 14:18:14,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 34 remaining) [2024-01-29 14:18:14,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 34 remaining) [2024-01-29 14:18:14,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 34 remaining) [2024-01-29 14:18:14,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 34 remaining) [2024-01-29 14:18:14,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 34 remaining) [2024-01-29 14:18:14,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 34 remaining) [2024-01-29 14:18:14,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (6 of 34 remaining) [2024-01-29 14:18:14,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 34 remaining) [2024-01-29 14:18:14,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 34 remaining) [2024-01-29 14:18:14,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 34 remaining) [2024-01-29 14:18:14,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 34 remaining) [2024-01-29 14:18:14,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 34 remaining) [2024-01-29 14:18:14,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 34 remaining) [2024-01-29 14:18:14,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:18:14,297 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:14,301 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:18:14,302 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:18:14,328 INFO L503 ceAbstractionStarter]: Automizer considered 27 witness invariants [2024-01-29 14:18:14,329 INFO L504 ceAbstractionStarter]: WitnessConsidered=27 [2024-01-29 14:18:14,329 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:18:14 BasicIcfg [2024-01-29 14:18:14,329 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:18:14,330 INFO L158 Benchmark]: Toolchain (without parser) took 2704.21ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 97.9MB in the beginning and 191.9MB in the end (delta: -93.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:14,330 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 157.3MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:14,330 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:14,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.88ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 82.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-29 14:18:14,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.05ms. Allocated memory is still 157.3MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:18:14,331 INFO L158 Benchmark]: Boogie Preprocessor took 82.09ms. Allocated memory is still 157.3MB. Free memory was 79.9MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:18:14,332 INFO L158 Benchmark]: RCFGBuilder took 632.82ms. Allocated memory is still 157.3MB. Free memory was 77.9MB in the beginning and 114.4MB in the end (delta: -36.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-01-29 14:18:14,332 INFO L158 Benchmark]: TraceAbstraction took 1627.85ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 113.5MB in the beginning and 191.9MB in the end (delta: -78.3MB). Peak memory consumption was 906.1kB. Max. memory is 16.1GB. [2024-01-29 14:18:14,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 157.3MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.88ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 82.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.05ms. Allocated memory is still 157.3MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.09ms. Allocated memory is still 157.3MB. Free memory was 79.9MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 632.82ms. Allocated memory is still 157.3MB. Free memory was 77.9MB in the beginning and 114.4MB in the end (delta: -36.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1627.85ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 113.5MB in the beginning and 191.9MB in the end (delta: -78.3MB). Peak memory consumption was 906.1kB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 64]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] int result_3, result_4, result_5; [L39] _Bool sponsored_0, sponsored_1, sponsored_2; [L60] pthread_t t1, t2, t3; VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_3],IntegerLiteral[0]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_4],IntegerLiteral[0]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_5],IntegerLiteral[0]]]] [L63] sponsored_0 = __VERIFIER_nondet_bool() [L64] CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=2, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 91 locations, 34 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: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 289 IncrementalHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 11 mSDtfsCounter, 289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be incorrect! [2024-01-29 14:18:14,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE