./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-trans.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-trans.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-trans.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-trans.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 14:18:11,476 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:18:11,559 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:18:11,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:18:11,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:18:11,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:18:11,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:18:11,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:18:11,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:18:11,606 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:18:11,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:18:11,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:18:11,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:18:11,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:18:11,609 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:18:11,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:18:11,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:18:11,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:18:11,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:18:11,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:18:11,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:18:11,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:18:11,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:18:11,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:18:11,612 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:18:11,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:18:11,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:18:11,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:18:11,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:18:11,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:18:11,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:18:11,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:18:11,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:11,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:18:11,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:18:11,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:18:11,616 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:18:11,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:18:11,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:18:11,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:18:11,617 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:18:11,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:18:11,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:18:11,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:18:11,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:18:11,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:18:11,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:18:11,945 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:18:11,945 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:18:11,946 INFO L431 ainManager$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-trans.wvr.yml/witness.yml [2024-01-29 14:18:12,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:18:12,095 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:18:12,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2024-01-29 14:18:13,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:18:13,449 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:18:13,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2024-01-29 14:18:13,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0362cfcf/0e230c19ad31438c98fb3fd628a13c04/FLAG5dc8d81c7 [2024-01-29 14:18:13,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0362cfcf/0e230c19ad31438c98fb3fd628a13c04 [2024-01-29 14:18:13,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:18:13,469 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:18:13,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:13,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:18:13,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:18:13,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:12" (1/2) ... [2024-01-29 14:18:13,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37505555 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:13, skipping insertion in model container [2024-01-29 14:18:13,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:12" (1/2) ... [2024-01-29 14:18:13,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d2ad539 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:13, skipping insertion in model container [2024-01-29 14:18:13,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:13" (2/2) ... [2024-01-29 14:18:13,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37505555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13, skipping insertion in model container [2024-01-29 14:18:13,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:13" (2/2) ... [2024-01-29 14:18:13,477 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:18:13,490 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:18:13,496 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_3 == 0 [2024-01-29 14:18:13,496 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_5 == 0 [2024-01-29 14:18:13,496 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_2 == (_Bool)0 || sponsored_2 == (_Bool)1 [2024-01-29 14:18:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_4 == 0 [2024-01-29 14:18:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-29 14:18:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_3 == 0 [2024-01-29 14:18:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_1 == (_Bool)0 [2024-01-29 14:18:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_0 == (_Bool)0 [2024-01-29 14:18:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_2 == (_Bool)0 [2024-01-29 14:18:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_4 == 0 [2024-01-29 14:18:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_5 == 0 [2024-01-29 14:18:13,506 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:18:13,506 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:18:13,506 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_4 == 0 [2024-01-29 14:18:13,506 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:13,506 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-29 14:18:13,506 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_5 == 0 [2024-01-29 14:18:13,506 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_2 == (_Bool)0 [2024-01-29 14:18:13,507 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_3 == 0 [2024-01-29 14:18:13,507 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-29 14:18:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_3 == 0 [2024-01-29 14:18:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_1 == (_Bool)0 [2024-01-29 14:18:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_5 == 0 [2024-01-29 14:18:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_4 == 0 [2024-01-29 14:18:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_2 == (_Bool)0 [2024-01-29 14:18:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:18:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_4 == 0 [2024-01-29 14:18:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_2 == (_Bool)0 [2024-01-29 14:18:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-29 14:18:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-29 14:18:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_5 == 0 [2024-01-29 14:18:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_3 == 0 [2024-01-29 14:18:13,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:18:13,742 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-trans.wvr.c[2311,2324] [2024-01-29 14:18:13,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:13,760 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:18:13,768 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 14:18:13,812 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-trans.wvr.c[2311,2324] [2024-01-29 14:18:13,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:13,826 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:18:13,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13 WrapperNode [2024-01-29 14:18:13,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:13,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:13,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:18:13,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:18:13,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,867 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2024-01-29 14:18:13,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:13,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:18:13,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:18:13,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:18:13,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,905 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 14:18:13,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:18:13,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:18:13,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:18:13,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:18:13,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (1/1) ... [2024-01-29 14:18:13,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:13,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:18:13,953 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 14:18:13,958 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 14:18:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:18:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:18:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:18:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:18:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:18:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:18:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:18:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:18:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:18:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:18:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:18:14,009 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 14:18:14,118 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:18:14,120 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:18:14,309 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:18:14,310 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:18:14,396 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:18:14,396 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:18:14,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:14 BoogieIcfgContainer [2024-01-29 14:18:14,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:18:14,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:18:14,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:18:14,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:18:14,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:12" (1/4) ... [2024-01-29 14:18:14,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53825603 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:14, skipping insertion in model container [2024-01-29 14:18:14,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:18:13" (2/4) ... [2024-01-29 14:18:14,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53825603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:18:14, skipping insertion in model container [2024-01-29 14:18:14,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:13" (3/4) ... [2024-01-29 14:18:14,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53825603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:18:14, skipping insertion in model container [2024-01-29 14:18:14,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:14" (4/4) ... [2024-01-29 14:18:14,403 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2024-01-29 14:18:14,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:18:14,418 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-01-29 14:18:14,418 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:18:14,472 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-29 14:18:14,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 75 transitions, 171 flow [2024-01-29 14:18:14,540 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2024-01-29 14:18:14,541 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:18:14,542 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 14:18:14,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 75 transitions, 171 flow [2024-01-29 14:18:14,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 71 transitions, 160 flow [2024-01-29 14:18:14,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:18:14,558 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;@7d856059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:18:14,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-01-29 14:18:14,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:18:14,562 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:18:14,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:18:14,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:14,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:18:14,563 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 14:18:14,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:14,568 INFO L85 PathProgramCache]: Analyzing trace with hash 8930, now seen corresponding path program 1 times [2024-01-29 14:18:14,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:14,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309625686] [2024-01-29 14:18:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:14,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:14,812 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 14:18:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:14,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309625686] [2024-01-29 14:18:14,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309625686] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:14,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:14,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:14,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396223450] [2024-01-29 14:18:14,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:14,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:14,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:14,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:14,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:14,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 75 [2024-01-29 14:18:14,883 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 14:18:14,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:14,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 75 [2024-01-29 14:18:14,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:15,045 INFO L124 PetriNetUnfolderBase]: 138/322 cut-off events. [2024-01-29 14:18:15,045 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-01-29 14:18:15,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 322 events. 138/322 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1054 event pairs, 48 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 424. Up to 145 conditions per place. [2024-01-29 14:18:15,053 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 34 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2024-01-29 14:18:15,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 248 flow [2024-01-29 14:18:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-01-29 14:18:15,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7511111111111111 [2024-01-29 14:18:15,066 INFO L175 Difference]: Start difference. First operand has 81 places, 71 transitions, 160 flow. Second operand 3 states and 169 transitions. [2024-01-29 14:18:15,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 248 flow [2024-01-29 14:18:15,072 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 14:18:15,076 INFO L231 Difference]: Finished difference. Result has 73 places, 67 transitions, 144 flow [2024-01-29 14:18:15,077 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=73, PETRI_TRANSITIONS=67} [2024-01-29 14:18:15,080 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -8 predicate places. [2024-01-29 14:18:15,081 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 144 flow [2024-01-29 14:18:15,081 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 14:18:15,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:15,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:18:15,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:18:15,082 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 14:18:15,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:15,087 INFO L85 PathProgramCache]: Analyzing trace with hash 277075, now seen corresponding path program 1 times [2024-01-29 14:18:15,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:15,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591936412] [2024-01-29 14:18:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:15,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:15,153 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 14:18:15,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:15,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591936412] [2024-01-29 14:18:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591936412] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:15,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:15,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896380964] [2024-01-29 14:18:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:15,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:15,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 75 [2024-01-29 14:18:15,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 144 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 14:18:15,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:15,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 75 [2024-01-29 14:18:15,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:15,246 INFO L124 PetriNetUnfolderBase]: 138/322 cut-off events. [2024-01-29 14:18:15,246 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-01-29 14:18:15,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 322 events. 138/322 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1146 event pairs, 28 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 272. Up to 179 conditions per place. [2024-01-29 14:18:15,248 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 33 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-01-29 14:18:15,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 72 transitions, 228 flow [2024-01-29 14:18:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2024-01-29 14:18:15,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.76 [2024-01-29 14:18:15,251 INFO L175 Difference]: Start difference. First operand has 73 places, 67 transitions, 144 flow. Second operand 3 states and 171 transitions. [2024-01-29 14:18:15,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 72 transitions, 228 flow [2024-01-29 14:18:15,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:15,253 INFO L231 Difference]: Finished difference. Result has 69 places, 63 transitions, 136 flow [2024-01-29 14:18:15,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=69, PETRI_TRANSITIONS=63} [2024-01-29 14:18:15,254 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2024-01-29 14:18:15,254 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 63 transitions, 136 flow [2024-01-29 14:18:15,254 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 14:18:15,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:15,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:18:15,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:18:15,255 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 14:18:15,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:15,255 INFO L85 PathProgramCache]: Analyzing trace with hash 8589622, now seen corresponding path program 1 times [2024-01-29 14:18:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:15,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583338168] [2024-01-29 14:18:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:15,314 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 14:18:15,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:15,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583338168] [2024-01-29 14:18:15,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583338168] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:15,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:15,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:15,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910502016] [2024-01-29 14:18:15,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:15,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:15,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:15,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:15,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:15,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-29 14:18:15,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 63 transitions, 136 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 14:18:15,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:15,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-29 14:18:15,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:15,385 INFO L124 PetriNetUnfolderBase]: 138/295 cut-off events. [2024-01-29 14:18:15,386 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-01-29 14:18:15,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 295 events. 138/295 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 835 event pairs, 138 based on Foata normal form. 3/289 useless extension candidates. Maximal degree in co-relation 182. Up to 246 conditions per place. [2024-01-29 14:18:15,388 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 22 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-29 14:18:15,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 60 transitions, 178 flow [2024-01-29 14:18:15,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-29 14:18:15,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-29 14:18:15,389 INFO L175 Difference]: Start difference. First operand has 69 places, 63 transitions, 136 flow. Second operand 3 states and 168 transitions. [2024-01-29 14:18:15,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 60 transitions, 178 flow [2024-01-29 14:18:15,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:15,391 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 130 flow [2024-01-29 14:18:15,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2024-01-29 14:18:15,392 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -15 predicate places. [2024-01-29 14:18:15,392 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 130 flow [2024-01-29 14:18:15,392 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 14:18:15,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:15,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:18:15,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:18:15,393 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 14:18:15,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:15,393 INFO L85 PathProgramCache]: Analyzing trace with hash 266278549, now seen corresponding path program 1 times [2024-01-29 14:18:15,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:15,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315400445] [2024-01-29 14:18:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:15,436 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 14:18:15,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:15,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315400445] [2024-01-29 14:18:15,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315400445] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:15,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:15,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:15,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475588697] [2024-01-29 14:18:15,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:15,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:15,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:15,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:15,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:15,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-29 14:18:15,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 130 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 14:18:15,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:15,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-29 14:18:15,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:15,499 INFO L124 PetriNetUnfolderBase]: 138/297 cut-off events. [2024-01-29 14:18:15,499 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:18:15,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 297 events. 138/297 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 871 event pairs, 138 based on Foata normal form. 1/292 useless extension candidates. Maximal degree in co-relation 527. Up to 250 conditions per place. [2024-01-29 14:18:15,501 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 24 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2024-01-29 14:18:15,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 59 transitions, 180 flow [2024-01-29 14:18:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:15,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-29 14:18:15,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-29 14:18:15,502 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 130 flow. Second operand 3 states and 168 transitions. [2024-01-29 14:18:15,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 59 transitions, 180 flow [2024-01-29 14:18:15,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 59 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:15,504 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 128 flow [2024-01-29 14:18:15,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2024-01-29 14:18:15,504 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -16 predicate places. [2024-01-29 14:18:15,505 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 128 flow [2024-01-29 14:18:15,505 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 14:18:15,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:15,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:18:15,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:18:15,505 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 14:18:15,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:15,506 INFO L85 PathProgramCache]: Analyzing trace with hash -335299291, now seen corresponding path program 1 times [2024-01-29 14:18:15,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:15,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530430400] [2024-01-29 14:18:15,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:15,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:15,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:15,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530430400] [2024-01-29 14:18:15,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530430400] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:15,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329454376] [2024-01-29 14:18:15,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:15,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:15,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:15,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-29 14:18:15,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 128 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 14:18:15,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:15,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-29 14:18:15,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:15,618 INFO L124 PetriNetUnfolderBase]: 138/295 cut-off events. [2024-01-29 14:18:15,618 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:18:15,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 295 events. 138/295 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 867 event pairs, 138 based on Foata normal form. 2/292 useless extension candidates. Maximal degree in co-relation 547. Up to 248 conditions per place. [2024-01-29 14:18:15,621 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 23 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2024-01-29 14:18:15,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 57 transitions, 174 flow [2024-01-29 14:18:15,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:15,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-29 14:18:15,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-29 14:18:15,622 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 128 flow. Second operand 3 states and 168 transitions. [2024-01-29 14:18:15,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 57 transitions, 174 flow [2024-01-29 14:18:15,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 57 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:15,624 INFO L231 Difference]: Finished difference. Result has 63 places, 57 transitions, 124 flow [2024-01-29 14:18:15,624 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 14:18:15,627 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2024-01-29 14:18:15,627 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 57 transitions, 124 flow [2024-01-29 14:18:15,627 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 14:18:15,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:15,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:15,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:18:15,627 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 14:18:15,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1804343175, now seen corresponding path program 1 times [2024-01-29 14:18:15,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:15,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615692278] [2024-01-29 14:18:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:15,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:15,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615692278] [2024-01-29 14:18:15,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615692278] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:15,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:15,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:15,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63744853] [2024-01-29 14:18:15,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:15,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:15,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:15,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:15,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:15,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 75 [2024-01-29 14:18:15,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 57 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:15,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:15,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 75 [2024-01-29 14:18:15,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:15,748 INFO L124 PetriNetUnfolderBase]: 138/305 cut-off events. [2024-01-29 14:18:15,749 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:18:15,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 305 events. 138/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1060 event pairs, 20 based on Foata normal form. 1/300 useless extension candidates. Maximal degree in co-relation 549. Up to 197 conditions per place. [2024-01-29 14:18:15,751 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 31 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-29 14:18:15,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 202 flow [2024-01-29 14:18:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:15,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2024-01-29 14:18:15,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2024-01-29 14:18:15,752 INFO L175 Difference]: Start difference. First operand has 63 places, 57 transitions, 124 flow. Second operand 3 states and 175 transitions. [2024-01-29 14:18:15,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 202 flow [2024-01-29 14:18:15,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:15,755 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 116 flow [2024-01-29 14:18:15,755 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 14:18:15,757 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -22 predicate places. [2024-01-29 14:18:15,757 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 116 flow [2024-01-29 14:18:15,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:15,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:15,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:15,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:18:15,758 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 14:18:15,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:15,758 INFO L85 PathProgramCache]: Analyzing trace with hash -100063308, now seen corresponding path program 1 times [2024-01-29 14:18:15,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:15,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836345665] [2024-01-29 14:18:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:15,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:15,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:18:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:15,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:18:15,798 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:18:15,799 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 34 remaining) [2024-01-29 14:18:15,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 34 remaining) [2024-01-29 14:18:15,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 34 remaining) [2024-01-29 14:18:15,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 34 remaining) [2024-01-29 14:18:15,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 34 remaining) [2024-01-29 14:18:15,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 34 remaining) [2024-01-29 14:18:15,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 34 remaining) [2024-01-29 14:18:15,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 34 remaining) [2024-01-29 14:18:15,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 34 remaining) [2024-01-29 14:18:15,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 34 remaining) [2024-01-29 14:18:15,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 34 remaining) [2024-01-29 14:18:15,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 34 remaining) [2024-01-29 14:18:15,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 34 remaining) [2024-01-29 14:18:15,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 34 remaining) [2024-01-29 14:18:15,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 34 remaining) [2024-01-29 14:18:15,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 34 remaining) [2024-01-29 14:18:15,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 34 remaining) [2024-01-29 14:18:15,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 34 remaining) [2024-01-29 14:18:15,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 34 remaining) [2024-01-29 14:18:15,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 34 remaining) [2024-01-29 14:18:15,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 34 remaining) [2024-01-29 14:18:15,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 34 remaining) [2024-01-29 14:18:15,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 34 remaining) [2024-01-29 14:18:15,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 34 remaining) [2024-01-29 14:18:15,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 34 remaining) [2024-01-29 14:18:15,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 34 remaining) [2024-01-29 14:18:15,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 34 remaining) [2024-01-29 14:18:15,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (6 of 34 remaining) [2024-01-29 14:18:15,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 34 remaining) [2024-01-29 14:18:15,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 34 remaining) [2024-01-29 14:18:15,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 34 remaining) [2024-01-29 14:18:15,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 34 remaining) [2024-01-29 14:18:15,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 34 remaining) [2024-01-29 14:18:15,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 34 remaining) [2024-01-29 14:18:15,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:18:15,806 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:15,810 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:18:15,810 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:18:15,824 INFO L503 ceAbstractionStarter]: Automizer considered 27 witness invariants [2024-01-29 14:18:15,825 INFO L504 ceAbstractionStarter]: WitnessConsidered=27 [2024-01-29 14:18:15,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:18:15 BasicIcfg [2024-01-29 14:18:15,825 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:18:15,826 INFO L158 Benchmark]: Toolchain (without parser) took 2356.69ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 80.8MB in the beginning and 176.0MB in the end (delta: -95.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:15,826 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:15,826 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:15,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.42ms. Allocated memory is still 159.4MB. Free memory was 80.6MB in the beginning and 64.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-29 14:18:15,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.22ms. Allocated memory is still 159.4MB. Free memory was 64.8MB in the beginning and 63.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:15,827 INFO L158 Benchmark]: Boogie Preprocessor took 53.78ms. Allocated memory is still 159.4MB. Free memory was 63.1MB in the beginning and 60.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:18:15,827 INFO L158 Benchmark]: RCFGBuilder took 472.20ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 60.6MB in the beginning and 184.7MB in the end (delta: -124.0MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-01-29 14:18:15,827 INFO L158 Benchmark]: TraceAbstraction took 1427.39ms. Allocated memory is still 234.9MB. Free memory was 184.7MB in the beginning and 176.0MB in the end (delta: 8.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-01-29 14:18:15,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.42ms. Allocated memory is still 159.4MB. Free memory was 80.6MB in the beginning and 64.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.22ms. Allocated memory is still 159.4MB. Free memory was 64.8MB in the beginning and 63.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.78ms. Allocated memory is still 159.4MB. Free memory was 63.1MB in the beginning and 60.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.20ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 60.6MB in the beginning and 184.7MB in the end (delta: -124.0MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1427.39ms. Allocated memory is still 234.9MB. Free memory was 184.7MB in the beginning and 176.0MB in the end (delta: 8.7MB). Peak memory consumption was 7.6MB. 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_5],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_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_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[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_3],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: 76]: 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: 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. - 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. - 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: 1.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 11 mSDtfsCounter, 292 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 14:18:15,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE