./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i --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/13-privatized_18-first-reads_unknown_2_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_2_pos.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-2755261-m [2024-01-26 15:18:21,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:18:21,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:18:21,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:18:21,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:18:22,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:18:22,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:18:22,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:18:22,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:18:22,146 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:18:22,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:18:22,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:18:22,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:18:22,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:18:22,147 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:18:22,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:18:22,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:18:22,148 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:18:22,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:18:22,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:18:22,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:18:22,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:18:22,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:18:22,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:18:22,150 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:18:22,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:18:22,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:18:22,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:18:22,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:18:22,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:18:22,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:18:22,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:18:22,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:22,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:18:22,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:18:22,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:18:22,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:18:22,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:18:22,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:18:22,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:18:22,154 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:18:22,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:18:22,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:18:22,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:18:22,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:18:22,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:18:22,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:18:22,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:18:22,477 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:18:22,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2024-01-26 15:18:23,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:18:23,797 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:18:23,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2024-01-26 15:18:23,823 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce238aac/7f356d888d2846e1a58f84123a185288/FLAGd96584d85 [2024-01-26 15:18:23,839 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce238aac/7f356d888d2846e1a58f84123a185288 [2024-01-26 15:18:23,841 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:18:23,842 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:18:23,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_2_pos.yml/witness.yml [2024-01-26 15:18:23,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:18:23,921 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:18:23,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:23,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:18:23,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:18:23,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:23" (1/2) ... [2024-01-26 15:18:23,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dd4521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:23, skipping insertion in model container [2024-01-26 15:18:23,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:23" (1/2) ... [2024-01-26 15:18:23,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10316c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:23, skipping insertion in model container [2024-01-26 15:18:23,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:23" (2/2) ... [2024-01-26 15:18:23,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dd4521 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:23, skipping insertion in model container [2024-01-26 15:18:23,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:23" (2/2) ... [2024-01-26 15:18:23,928 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:18:23,967 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:18:23,968 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 0 [2024-01-26 15:18:23,968 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= glob1 [2024-01-26 15:18:23,968 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 <= 1 [2024-01-26 15:18:23,968 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:23,968 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 0 || t == 1 [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= t [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t <= 1 [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t <= 1 [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 <= 1 [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= t [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 0 || t == 1 [2024-01-26 15:18:23,969 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= glob1 [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] 0 <= t [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t <= 1 [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t == 0 || t == 1 [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-26 15:18:23,970 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] glob1 == 0 [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] (unsigned long )arg == 0UL [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] glob1 == 0 [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] t == 42 [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 0 <= glob1 [2024-01-26 15:18:23,971 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 <= 1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-26 15:18:23,972 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:23,973 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-26 15:18:23,973 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:23,973 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] glob1 == 0 [2024-01-26 15:18:23,973 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 0 || t == 1 [2024-01-26 15:18:23,973 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-26 15:18:23,973 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t <= 1 [2024-01-26 15:18:23,973 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= t [2024-01-26 15:18:23,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:18:24,117 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2024-01-26 15:18:24,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:24,261 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:18:24,271 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2024-01-26 15:18:24,273 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } 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 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 [2024-01-26 15:18:24,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:24,355 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:18:24,356 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24 WrapperNode [2024-01-26 15:18:24,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:24,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:24,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:18:24,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:18:24,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,411 INFO L138 Inliner]: procedures = 164, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2024-01-26 15:18:24,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:24,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:18:24,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:18:24,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:18:24,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,446 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-26 15:18:24,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:18:24,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:18:24,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:18:24,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:18:24,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (1/1) ... [2024-01-26 15:18:24,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:24,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:18:24,587 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) [2024-01-26 15:18:24,597 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 [2024-01-26 15:18:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:18:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:18:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:18:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:18:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:18:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:18:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-26 15:18:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:18:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-26 15:18:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:18:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:18:24,621 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:18:24,714 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:18:24,716 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:18:24,899 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:18:24,899 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:18:24,948 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:18:24,948 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:18:24,949 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:24 BoogieIcfgContainer [2024-01-26 15:18:24,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:18:24,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:18:24,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:18:24,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:18:24,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:18:23" (1/4) ... [2024-01-26 15:18:24,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd19e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:24, skipping insertion in model container [2024-01-26 15:18:24,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:23" (2/4) ... [2024-01-26 15:18:24,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd19e4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:24, skipping insertion in model container [2024-01-26 15:18:24,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:24" (3/4) ... [2024-01-26 15:18:24,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd19e4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:24, skipping insertion in model container [2024-01-26 15:18:24,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:24" (4/4) ... [2024-01-26 15:18:24,955 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2024-01-26 15:18:24,967 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:18:24,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-01-26 15:18:24,968 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:18:25,039 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-26 15:18:25,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 94 transitions, 195 flow [2024-01-26 15:18:25,117 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2024-01-26 15:18:25,117 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-26 15:18:25,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 2/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2024-01-26 15:18:25,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 94 transitions, 195 flow [2024-01-26 15:18:25,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 91 transitions, 185 flow [2024-01-26 15:18:25,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:18:25,148 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;@25c88049, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:18:25,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-01-26 15:18:25,151 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:18:25,151 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:18:25,151 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:25,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:25,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:18:25,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:25,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash 8684, now seen corresponding path program 1 times [2024-01-26 15:18:25,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:25,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359344379] [2024-01-26 15:18:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:25,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:25,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:25,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:25,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359344379] [2024-01-26 15:18:25,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359344379] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:25,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:25,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:18:25,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037808930] [2024-01-26 15:18:25,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:25,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:25,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:25,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:25,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2024-01-26 15:18:25,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 91 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2024-01-26 15:18:25,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:25,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2024-01-26 15:18:25,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:25,599 INFO L124 PetriNetUnfolderBase]: 126/602 cut-off events. [2024-01-26 15:18:25,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:25,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 602 events. 126/602 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3512 event pairs, 62 based on Foata normal form. 52/514 useless extension candidates. Maximal degree in co-relation 915. Up to 164 conditions per place. [2024-01-26 15:18:25,609 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 34 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2024-01-26 15:18:25,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 269 flow [2024-01-26 15:18:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:25,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2024-01-26 15:18:25,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8085106382978723 [2024-01-26 15:18:25,621 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 185 flow. Second operand 3 states and 228 transitions. [2024-01-26 15:18:25,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 269 flow [2024-01-26 15:18:25,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:25,631 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 218 flow [2024-01-26 15:18:25,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-01-26 15:18:25,635 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -1 predicate places. [2024-01-26 15:18:25,635 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 218 flow [2024-01-26 15:18:25,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2024-01-26 15:18:25,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:25,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-26 15:18:25,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:18:25,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:25,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash 259105612, now seen corresponding path program 1 times [2024-01-26 15:18:25,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:25,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841871708] [2024-01-26 15:18:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:25,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:25,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:25,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841871708] [2024-01-26 15:18:25,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841871708] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:25,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:25,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:25,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007777580] [2024-01-26 15:18:25,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:25,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:25,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2024-01-26 15:18:25,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2024-01-26 15:18:25,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:25,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2024-01-26 15:18:25,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:25,937 INFO L124 PetriNetUnfolderBase]: 73/646 cut-off events. [2024-01-26 15:18:25,938 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-01-26 15:18:25,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 646 events. 73/646 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4131 event pairs, 10 based on Foata normal form. 49/578 useless extension candidates. Maximal degree in co-relation 929. Up to 154 conditions per place. [2024-01-26 15:18:25,943 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 20 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-26 15:18:25,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 83 transitions, 252 flow [2024-01-26 15:18:25,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:25,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2024-01-26 15:18:25,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7712765957446809 [2024-01-26 15:18:25,949 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 218 flow. Second operand 4 states and 290 transitions. [2024-01-26 15:18:25,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 83 transitions, 252 flow [2024-01-26 15:18:25,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 83 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:25,956 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 196 flow [2024-01-26 15:18:25,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-01-26 15:18:25,957 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-26 15:18:25,957 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 196 flow [2024-01-26 15:18:25,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2024-01-26 15:18:25,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:25,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:25,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:18:25,958 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:25,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:25,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1637831660, now seen corresponding path program 1 times [2024-01-26 15:18:25,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:25,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148448413] [2024-01-26 15:18:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:25,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:26,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:26,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148448413] [2024-01-26 15:18:26,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148448413] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:26,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:26,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:26,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887847162] [2024-01-26 15:18:26,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:26,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:26,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:26,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:26,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:26,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 94 [2024-01-26 15:18:26,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2024-01-26 15:18:26,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:26,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 94 [2024-01-26 15:18:26,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:26,098 INFO L124 PetriNetUnfolderBase]: 143/685 cut-off events. [2024-01-26 15:18:26,098 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-01-26 15:18:26,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 685 events. 143/685 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4134 event pairs, 122 based on Foata normal form. 0/633 useless extension candidates. Maximal degree in co-relation 1123. Up to 298 conditions per place. [2024-01-26 15:18:26,101 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 34 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-26 15:18:26,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 276 flow [2024-01-26 15:18:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:26,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2024-01-26 15:18:26,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7659574468085106 [2024-01-26 15:18:26,102 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 196 flow. Second operand 3 states and 216 transitions. [2024-01-26 15:18:26,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 276 flow [2024-01-26 15:18:26,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:26,104 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 201 flow [2024-01-26 15:18:26,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-01-26 15:18:26,105 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-26 15:18:26,105 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 201 flow [2024-01-26 15:18:26,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2024-01-26 15:18:26,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:26,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:26,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:18:26,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:26,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:26,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1998183826, now seen corresponding path program 1 times [2024-01-26 15:18:26,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:26,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904713111] [2024-01-26 15:18:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:26,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:26,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904713111] [2024-01-26 15:18:26,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904713111] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:26,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:26,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:26,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740039454] [2024-01-26 15:18:26,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:26,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:26,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:26,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:26,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:26,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2024-01-26 15:18:26,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2024-01-26 15:18:26,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:26,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2024-01-26 15:18:26,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:26,225 INFO L124 PetriNetUnfolderBase]: 72/417 cut-off events. [2024-01-26 15:18:26,225 INFO L125 PetriNetUnfolderBase]: For 95/106 co-relation queries the response was YES. [2024-01-26 15:18:26,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 417 events. 72/417 cut-off events. For 95/106 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2139 event pairs, 50 based on Foata normal form. 62/394 useless extension candidates. Maximal degree in co-relation 630. Up to 129 conditions per place. [2024-01-26 15:18:26,227 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 25 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-01-26 15:18:26,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 75 transitions, 227 flow [2024-01-26 15:18:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-01-26 15:18:26,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8014184397163121 [2024-01-26 15:18:26,228 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 201 flow. Second operand 3 states and 226 transitions. [2024-01-26 15:18:26,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 75 transitions, 227 flow [2024-01-26 15:18:26,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 75 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:26,230 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 163 flow [2024-01-26 15:18:26,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-01-26 15:18:26,231 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -17 predicate places. [2024-01-26 15:18:26,231 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 163 flow [2024-01-26 15:18:26,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2024-01-26 15:18:26,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:26,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:26,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:18:26,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:26,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:26,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1783618102, now seen corresponding path program 1 times [2024-01-26 15:18:26,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:26,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519647197] [2024-01-26 15:18:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:26,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:26,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:26,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:26,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519647197] [2024-01-26 15:18:26,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519647197] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:26,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:26,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:26,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976128928] [2024-01-26 15:18:26,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:26,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:26,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:26,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:26,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:26,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2024-01-26 15:18:26,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2024-01-26 15:18:26,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:26,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2024-01-26 15:18:26,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:26,411 INFO L124 PetriNetUnfolderBase]: 159/699 cut-off events. [2024-01-26 15:18:26,412 INFO L125 PetriNetUnfolderBase]: For 81/83 co-relation queries the response was YES. [2024-01-26 15:18:26,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 699 events. 159/699 cut-off events. For 81/83 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3864 event pairs, 84 based on Foata normal form. 66/733 useless extension candidates. Maximal degree in co-relation 1157. Up to 183 conditions per place. [2024-01-26 15:18:26,414 INFO L140 encePairwiseOnDemand]: 78/94 looper letters, 41 selfloop transitions, 4 changer transitions 5/83 dead transitions. [2024-01-26 15:18:26,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 83 transitions, 293 flow [2024-01-26 15:18:26,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:26,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:26,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-01-26 15:18:26,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6329787234042553 [2024-01-26 15:18:26,415 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 163 flow. Second operand 4 states and 238 transitions. [2024-01-26 15:18:26,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 83 transitions, 293 flow [2024-01-26 15:18:26,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:26,417 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 190 flow [2024-01-26 15:18:26,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-01-26 15:18:26,418 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2024-01-26 15:18:26,418 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 190 flow [2024-01-26 15:18:26,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2024-01-26 15:18:26,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:26,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:26,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:18:26,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:26,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2145858055, now seen corresponding path program 1 times [2024-01-26 15:18:26,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:26,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060898482] [2024-01-26 15:18:26,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:26,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:26,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:26,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060898482] [2024-01-26 15:18:26,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060898482] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:26,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:26,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:26,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446525858] [2024-01-26 15:18:26,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:26,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:26,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:26,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:26,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:26,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 94 [2024-01-26 15:18:26,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2024-01-26 15:18:26,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:26,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 94 [2024-01-26 15:18:26,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:26,499 INFO L124 PetriNetUnfolderBase]: 29/332 cut-off events. [2024-01-26 15:18:26,499 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-01-26 15:18:26,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 332 events. 29/332 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1524 event pairs, 9 based on Foata normal form. 10/332 useless extension candidates. Maximal degree in co-relation 493. Up to 60 conditions per place. [2024-01-26 15:18:26,500 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 15 selfloop transitions, 4 changer transitions 2/71 dead transitions. [2024-01-26 15:18:26,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 71 transitions, 236 flow [2024-01-26 15:18:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2024-01-26 15:18:26,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.875886524822695 [2024-01-26 15:18:26,501 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 190 flow. Second operand 3 states and 247 transitions. [2024-01-26 15:18:26,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 71 transitions, 236 flow [2024-01-26 15:18:26,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 71 transitions, 213 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-01-26 15:18:26,503 INFO L231 Difference]: Finished difference. Result has 77 places, 66 transitions, 169 flow [2024-01-26 15:18:26,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2024-01-26 15:18:26,504 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -16 predicate places. [2024-01-26 15:18:26,504 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 169 flow [2024-01-26 15:18:26,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2024-01-26 15:18:26,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:26,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:26,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:18:26,505 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:26,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:26,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1951049356, now seen corresponding path program 1 times [2024-01-26 15:18:26,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:26,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069913962] [2024-01-26 15:18:26,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:26,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:26,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:26,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069913962] [2024-01-26 15:18:26,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069913962] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:26,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:26,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:26,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356865366] [2024-01-26 15:18:26,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:26,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:26,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:26,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:26,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:26,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 94 [2024-01-26 15:18:26,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-01-26 15:18:26,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:26,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 94 [2024-01-26 15:18:26,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:26,651 INFO L124 PetriNetUnfolderBase]: 34/261 cut-off events. [2024-01-26 15:18:26,652 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-01-26 15:18:26,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 261 events. 34/261 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 943 event pairs, 19 based on Foata normal form. 49/295 useless extension candidates. Maximal degree in co-relation 400. Up to 62 conditions per place. [2024-01-26 15:18:26,652 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 20 selfloop transitions, 2 changer transitions 24/65 dead transitions. [2024-01-26 15:18:26,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 223 flow [2024-01-26 15:18:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-01-26 15:18:26,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6148936170212767 [2024-01-26 15:18:26,654 INFO L175 Difference]: Start difference. First operand has 77 places, 66 transitions, 169 flow. Second operand 5 states and 289 transitions. [2024-01-26 15:18:26,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 223 flow [2024-01-26 15:18:26,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:26,655 INFO L231 Difference]: Finished difference. Result has 66 places, 36 transitions, 93 flow [2024-01-26 15:18:26,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=93, PETRI_PLACES=66, PETRI_TRANSITIONS=36} [2024-01-26 15:18:26,656 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -27 predicate places. [2024-01-26 15:18:26,656 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 36 transitions, 93 flow [2024-01-26 15:18:26,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-01-26 15:18:26,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:26,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:26,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-26 15:18:26,657 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:26,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:26,657 INFO L85 PathProgramCache]: Analyzing trace with hash 322047283, now seen corresponding path program 1 times [2024-01-26 15:18:26,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:26,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567528691] [2024-01-26 15:18:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:18:26,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-26 15:18:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:18:26,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-26 15:18:26,690 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-26 15:18:26,691 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (72 of 73 remaining) [2024-01-26 15:18:26,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 73 remaining) [2024-01-26 15:18:26,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 73 remaining) [2024-01-26 15:18:26,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (69 of 73 remaining) [2024-01-26 15:18:26,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 73 remaining) [2024-01-26 15:18:26,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 73 remaining) [2024-01-26 15:18:26,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 73 remaining) [2024-01-26 15:18:26,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 73 remaining) [2024-01-26 15:18:26,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 73 remaining) [2024-01-26 15:18:26,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 73 remaining) [2024-01-26 15:18:26,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 73 remaining) [2024-01-26 15:18:26,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 73 remaining) [2024-01-26 15:18:26,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 73 remaining) [2024-01-26 15:18:26,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 73 remaining) [2024-01-26 15:18:26,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 73 remaining) [2024-01-26 15:18:26,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 73 remaining) [2024-01-26 15:18:26,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 73 remaining) [2024-01-26 15:18:26,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 73 remaining) [2024-01-26 15:18:26,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 73 remaining) [2024-01-26 15:18:26,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 73 remaining) [2024-01-26 15:18:26,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 73 remaining) [2024-01-26 15:18:26,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 73 remaining) [2024-01-26 15:18:26,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (50 of 73 remaining) [2024-01-26 15:18:26,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 73 remaining) [2024-01-26 15:18:26,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 73 remaining) [2024-01-26 15:18:26,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 73 remaining) [2024-01-26 15:18:26,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 73 remaining) [2024-01-26 15:18:26,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 73 remaining) [2024-01-26 15:18:26,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 73 remaining) [2024-01-26 15:18:26,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 73 remaining) [2024-01-26 15:18:26,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 73 remaining) [2024-01-26 15:18:26,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 73 remaining) [2024-01-26 15:18:26,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 73 remaining) [2024-01-26 15:18:26,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 73 remaining) [2024-01-26 15:18:26,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 73 remaining) [2024-01-26 15:18:26,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 73 remaining) [2024-01-26 15:18:26,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 73 remaining) [2024-01-26 15:18:26,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 73 remaining) [2024-01-26 15:18:26,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 73 remaining) [2024-01-26 15:18:26,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 73 remaining) [2024-01-26 15:18:26,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 73 remaining) [2024-01-26 15:18:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 73 remaining) [2024-01-26 15:18:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 73 remaining) [2024-01-26 15:18:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 73 remaining) [2024-01-26 15:18:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 73 remaining) [2024-01-26 15:18:26,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-26 15:18:26,711 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:26,717 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:18:26,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:18:26,749 INFO L503 ceAbstractionStarter]: Automizer considered 36 witness invariants [2024-01-26 15:18:26,749 INFO L504 ceAbstractionStarter]: WitnessConsidered=36 [2024-01-26 15:18:26,750 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:18:26 BasicIcfg [2024-01-26 15:18:26,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:18:26,751 INFO L158 Benchmark]: Toolchain (without parser) took 2829.97ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 100.5MB in the beginning and 132.4MB in the end (delta: -31.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-01-26 15:18:26,751 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 140.5MB. Free memory was 103.9MB in the beginning and 103.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:26,751 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:26,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.18ms. Allocated memory is still 140.5MB. Free memory was 100.5MB in the beginning and 75.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-26 15:18:26,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.71ms. Allocated memory is still 140.5MB. Free memory was 75.3MB in the beginning and 73.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:26,753 INFO L158 Benchmark]: Boogie Preprocessor took 59.69ms. Allocated memory is still 140.5MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:26,753 INFO L158 Benchmark]: RCFGBuilder took 476.64ms. Allocated memory is still 140.5MB. Free memory was 71.2MB in the beginning and 88.1MB in the end (delta: -16.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-26 15:18:26,753 INFO L158 Benchmark]: TraceAbstraction took 1799.86ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 86.9MB in the beginning and 132.4MB in the end (delta: -45.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2024-01-26 15:18:26,754 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 140.5MB. Free memory was 103.9MB in the beginning and 103.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.18ms. Allocated memory is still 140.5MB. Free memory was 100.5MB in the beginning and 75.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.71ms. Allocated memory is still 140.5MB. Free memory was 75.3MB in the beginning and 73.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.69ms. Allocated memory is still 140.5MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.64ms. Allocated memory is still 140.5MB. Free memory was 71.2MB in the beginning and 88.1MB in the end (delta: -16.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1799.86ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 86.9MB in the beginning and 132.4MB in the end (delta: -45.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [L698] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L685] 1 int t = __VERIFIER_nondet_int(); [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] COND FALSE 1 !(t == 42) VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[t]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: 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: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 173 locations, 73 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: 1.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 607 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 372 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 553 IncrementalHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 91 mSDtfsCounter, 553 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=1, InterpolantAutomatonStates: 25, 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, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-01-26 15:18:26,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE