./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_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_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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_1_pos.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_1_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-a340643-m [2024-01-27 14:59:25,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:59:25,614 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:59:25,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:59:25,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:59:25,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:59:25,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:59:25,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:59:25,641 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:59:25,644 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:59:25,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:59:25,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:59:25,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:59:25,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:59:25,646 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:59:25,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:59:25,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:59:25,647 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:59:25,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:59:25,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:59:25,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:59:25,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:59:25,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:59:25,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:59:25,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:59:25,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:59:25,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:59:25,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:59:25,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:59:25,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:59:25,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:59:25,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:59:25,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:59:25,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:59:25,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:59:25,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:59:25,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:59:25,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:59:25,651 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:59:25,651 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:59:25,652 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:59:25,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:59:25,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:59:25,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:59:25,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:59:25,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:59:25,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:59:25,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:59:25,925 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:59:25,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2024-01-27 14:59:26,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:59:27,121 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:59:27,123 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2024-01-27 14:59:27,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03371d5fe/0ed4316a9cca4fa486bea479267d1de6/FLAGeeba1e0dc [2024-01-27 14:59:27,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03371d5fe/0ed4316a9cca4fa486bea479267d1de6 [2024-01-27 14:59:27,145 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:59:27,146 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:59:27,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_1_pos.yml/witness.yml [2024-01-27 14:59:27,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:59:27,240 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:59:27,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:59:27,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:59:27,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:59:27,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:59:27" (1/2) ... [2024-01-27 14:59:27,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a962e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:59:27, skipping insertion in model container [2024-01-27 14:59:27,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:59:27" (1/2) ... [2024-01-27 14:59:27,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c041346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:59:27, skipping insertion in model container [2024-01-27 14:59:27,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:59:27" (2/2) ... [2024-01-27 14:59:27,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a962e29 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27, skipping insertion in model container [2024-01-27 14:59:27,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:59:27" (2/2) ... [2024-01-27 14:59:27,249 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:59:27,290 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:59:27,291 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-01-27 14:59:27,291 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= glob1 [2024-01-27 14:59:27,291 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t <= 1 [2024-01-27 14:59:27,292 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == 0 || glob1 == 1 [2024-01-27 14:59:27,292 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 0 || t == 1 [2024-01-27 14:59:27,292 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= t [2024-01-27 14:59:27,292 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 14:59:27,293 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 <= 1 [2024-01-27 14:59:27,293 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t == 0 || t == 1 [2024-01-27 14:59:27,293 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-27 14:59:27,293 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] 0 <= t [2024-01-27 14:59:27,293 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t <= 1 [2024-01-27 14:59:27,293 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] glob1 == 0 [2024-01-27 14:59:27,293 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] (unsigned long )arg == 0UL [2024-01-27 14:59:27,294 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 0 || t == 1 [2024-01-27 14:59:27,294 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= glob1 [2024-01-27 14:59:27,294 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 14:59:27,294 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == 0 || glob1 == 1 [2024-01-27 14:59:27,294 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= t [2024-01-27 14:59:27,294 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 <= 1 [2024-01-27 14:59:27,294 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t <= 1 [2024-01-27 14:59:27,295 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 0 [2024-01-27 14:59:27,295 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == 0 || glob1 == 1 [2024-01-27 14:59:27,295 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 <= 1 [2024-01-27 14:59:27,295 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 0 <= glob1 [2024-01-27 14:59:27,295 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 14:59:27,295 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] t == 42 [2024-01-27 14:59:27,295 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] glob1 == 0 [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-27 14:59:27,296 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-27 14:59:27,297 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-27 14:59:27,297 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-27 14:59:27,298 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-27 14:59:27,298 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 14:59:27,298 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t <= 1 [2024-01-27 14:59:27,298 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 14:59:27,298 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 0 || t == 1 [2024-01-27 14:59:27,299 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] glob1 == 0 [2024-01-27 14:59:27,299 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= t [2024-01-27 14:59:27,334 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:59:27,482 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_1_pos.i[1097,1110] [2024-01-27 14:59:27,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:59:27,645 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:59:27,655 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_1_pos.i[1097,1110] [2024-01-27 14:59:27,655 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 [2024-01-27 14:59:27,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:59:27,765 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:59:27,765 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27 WrapperNode [2024-01-27 14:59:27,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:59:27,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:59:27,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:59:27,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:59:27,773 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 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,806 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 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,823 INFO L138 Inliner]: procedures = 164, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2024-01-27 14:59:27,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:59:27,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:59:27,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:59:27,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:59:27,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,861 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 2, 5]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 1 writes are split as follows [0, 1, 0]. [2024-01-27 14:59:27,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:59:27,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:59:27,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:59:27,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:59:27,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (1/1) ... [2024-01-27 14:59:27,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:59:27,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:59:27,911 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) [2024-01-27 14:59:27,921 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 [2024-01-27 14:59:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:59:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:59:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:59:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:59:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:59:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:59:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:59:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:59:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:59:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 14:59:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 14:59:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:59:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:59:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:59:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:59:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:59:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:59:27,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:59:27,945 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:59:28,116 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:59:28,117 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:59:28,258 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:59:28,258 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:59:28,362 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:59:28,362 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:59:28,363 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:59:28 BoogieIcfgContainer [2024-01-27 14:59:28,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:59:28,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:59:28,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:59:28,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:59:28,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:59:27" (1/4) ... [2024-01-27 14:59:28,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31768328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:59:28, skipping insertion in model container [2024-01-27 14:59:28,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:59:27" (2/4) ... [2024-01-27 14:59:28,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31768328 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:59:28, skipping insertion in model container [2024-01-27 14:59:28,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:59:27" (3/4) ... [2024-01-27 14:59:28,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31768328 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:59:28, skipping insertion in model container [2024-01-27 14:59:28,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:59:28" (4/4) ... [2024-01-27 14:59:28,370 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2024-01-27 14:59:28,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:59:28,383 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-01-27 14:59:28,383 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:59:28,438 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-27 14:59:28,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 94 transitions, 195 flow [2024-01-27 14:59:28,491 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2024-01-27 14:59:28,492 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 14:59:28,494 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. [2024-01-27 14:59:28,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 94 transitions, 195 flow [2024-01-27 14:59:28,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 91 transitions, 185 flow [2024-01-27 14:59:28,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:59:28,508 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;@2dd9b0e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:59:28,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-01-27 14:59:28,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:59:28,510 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:59:28,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:59:28,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:28,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:59:28,511 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)] === [2024-01-27 14:59:28,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:28,515 INFO L85 PathProgramCache]: Analyzing trace with hash 8684, now seen corresponding path program 1 times [2024-01-27 14:59:28,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:28,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959910692] [2024-01-27 14:59:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:28,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:28,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:28,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959910692] [2024-01-27 14:59:28,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959910692] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:28,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:28,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:59:28,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313040248] [2024-01-27 14:59:28,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:28,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:59:28,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:28,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:59:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:59:28,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 94 [2024-01-27 14:59:28,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 91 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2024-01-27 14:59:28,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:28,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 94 [2024-01-27 14:59:28,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:28,899 INFO L124 PetriNetUnfolderBase]: 131/575 cut-off events. [2024-01-27 14:59:28,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:59:28,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 575 events. 131/575 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3349 event pairs, 67 based on Foata normal form. 46/480 useless extension candidates. Maximal degree in co-relation 899. Up to 175 conditions per place. [2024-01-27 14:59:28,907 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 35 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2024-01-27 14:59:28,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 271 flow [2024-01-27 14:59:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:59:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:59:28,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-01-27 14:59:28,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8014184397163121 [2024-01-27 14:59:28,923 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 185 flow. Second operand 3 states and 226 transitions. [2024-01-27 14:59:28,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 271 flow [2024-01-27 14:59:28,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:59:28,930 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 218 flow [2024-01-27 14:59:28,932 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} [2024-01-27 14:59:28,935 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -1 predicate places. [2024-01-27 14:59:28,936 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 218 flow [2024-01-27 14:59:28,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2024-01-27 14:59:28,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:28,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:59:28,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:59:28,944 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)] === [2024-01-27 14:59:28,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash 259105612, now seen corresponding path program 1 times [2024-01-27 14:59:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:28,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675794743] [2024-01-27 14:59:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:29,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:29,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675794743] [2024-01-27 14:59:29,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675794743] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:29,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:29,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:59:29,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468024390] [2024-01-27 14:59:29,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:29,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:59:29,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:29,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:59:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:59:29,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2024-01-27 14:59:29,178 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) [2024-01-27 14:59:29,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:29,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2024-01-27 14:59:29,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:29,269 INFO L124 PetriNetUnfolderBase]: 73/646 cut-off events. [2024-01-27 14:59:29,269 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-01-27 14:59:29,271 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 25. Compared 4151 event pairs, 10 based on Foata normal form. 60/593 useless extension candidates. Maximal degree in co-relation 929. Up to 154 conditions per place. [2024-01-27 14:59:29,273 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 20 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-27 14:59:29,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 83 transitions, 252 flow [2024-01-27 14:59:29,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:59:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:59:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2024-01-27 14:59:29,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7712765957446809 [2024-01-27 14:59:29,277 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 218 flow. Second operand 4 states and 290 transitions. [2024-01-27 14:59:29,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 83 transitions, 252 flow [2024-01-27 14:59:29,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 83 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:59:29,281 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 196 flow [2024-01-27 14:59:29,281 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} [2024-01-27 14:59:29,281 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-27 14:59:29,282 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 196 flow [2024-01-27 14:59:29,282 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) [2024-01-27 14:59:29,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:29,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:59:29,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:59:29,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-27 14:59:29,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 766826439, now seen corresponding path program 1 times [2024-01-27 14:59:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:29,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736450664] [2024-01-27 14:59:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:29,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:29,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:29,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736450664] [2024-01-27 14:59:29,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736450664] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:29,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:29,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:59:29,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428997077] [2024-01-27 14:59:29,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:29,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:59:29,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:29,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:59:29,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:59:29,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 94 [2024-01-27 14:59:29,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-01-27 14:59:29,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:29,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 94 [2024-01-27 14:59:29,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:29,440 INFO L124 PetriNetUnfolderBase]: 135/677 cut-off events. [2024-01-27 14:59:29,441 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 14:59:29,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 677 events. 135/677 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4127 event pairs, 118 based on Foata normal form. 5/636 useless extension candidates. Maximal degree in co-relation 1096. Up to 288 conditions per place. [2024-01-27 14:59:29,444 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 32 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-27 14:59:29,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 272 flow [2024-01-27 14:59:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:59:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:59:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-01-27 14:59:29,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7801418439716312 [2024-01-27 14:59:29,446 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 196 flow. Second operand 3 states and 220 transitions. [2024-01-27 14:59:29,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 272 flow [2024-01-27 14:59:29,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 83 transitions, 269 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:59:29,449 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 201 flow [2024-01-27 14:59:29,450 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} [2024-01-27 14:59:29,451 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-27 14:59:29,451 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 201 flow [2024-01-27 14:59:29,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-01-27 14:59:29,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:29,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:59:29,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:59:29,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-27 14:59:29,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:29,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1814156117, now seen corresponding path program 1 times [2024-01-27 14:59:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:29,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947632823] [2024-01-27 14:59:29,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:29,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:29,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:29,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:29,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947632823] [2024-01-27 14:59:29,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947632823] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:29,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:29,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:59:29,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810924442] [2024-01-27 14:59:29,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:29,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:59:29,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:29,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:59:29,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:59:29,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 94 [2024-01-27 14:59:29,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2024-01-27 14:59:29,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:29,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 94 [2024-01-27 14:59:29,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:29,623 INFO L124 PetriNetUnfolderBase]: 77/395 cut-off events. [2024-01-27 14:59:29,624 INFO L125 PetriNetUnfolderBase]: For 94/105 co-relation queries the response was YES. [2024-01-27 14:59:29,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 395 events. 77/395 cut-off events. For 94/105 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2042 event pairs, 55 based on Foata normal form. 55/372 useless extension candidates. Maximal degree in co-relation 620. Up to 140 conditions per place. [2024-01-27 14:59:29,625 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 26 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-01-27 14:59:29,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 75 transitions, 229 flow [2024-01-27 14:59:29,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:59:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:59:29,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2024-01-27 14:59:29,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7943262411347518 [2024-01-27 14:59:29,629 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 201 flow. Second operand 3 states and 224 transitions. [2024-01-27 14:59:29,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 75 transitions, 229 flow [2024-01-27 14:59:29,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 75 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:59:29,633 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 163 flow [2024-01-27 14:59:29,633 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} [2024-01-27 14:59:29,635 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -17 predicate places. [2024-01-27 14:59:29,635 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 163 flow [2024-01-27 14:59:29,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2024-01-27 14:59:29,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:29,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:59:29,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:59:29,635 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)] === [2024-01-27 14:59:29,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:29,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1783618102, now seen corresponding path program 1 times [2024-01-27 14:59:29,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:29,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416446607] [2024-01-27 14:59:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:29,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:29,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:29,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416446607] [2024-01-27 14:59:29,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416446607] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:29,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:29,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:59:29,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904953025] [2024-01-27 14:59:29,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:29,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:59:29,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:29,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:59:29,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:59:29,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2024-01-27 14:59:29,776 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) [2024-01-27 14:59:29,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:29,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2024-01-27 14:59:29,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:29,864 INFO L124 PetriNetUnfolderBase]: 159/699 cut-off events. [2024-01-27 14:59:29,864 INFO L125 PetriNetUnfolderBase]: For 81/83 co-relation queries the response was YES. [2024-01-27 14:59:29,865 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 20. Compared 3867 event pairs, 84 based on Foata normal form. 60/720 useless extension candidates. Maximal degree in co-relation 1157. Up to 183 conditions per place. [2024-01-27 14:59:29,867 INFO L140 encePairwiseOnDemand]: 78/94 looper letters, 41 selfloop transitions, 4 changer transitions 5/83 dead transitions. [2024-01-27 14:59:29,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 83 transitions, 293 flow [2024-01-27 14:59:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:59:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:59:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-01-27 14:59:29,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6329787234042553 [2024-01-27 14:59:29,868 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 163 flow. Second operand 4 states and 238 transitions. [2024-01-27 14:59:29,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 83 transitions, 293 flow [2024-01-27 14:59:29,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:59:29,870 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 190 flow [2024-01-27 14:59:29,870 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} [2024-01-27 14:59:29,870 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2024-01-27 14:59:29,871 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 190 flow [2024-01-27 14:59:29,871 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) [2024-01-27 14:59:29,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:29,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:59:29,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:59:29,871 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)] === [2024-01-27 14:59:29,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:29,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2145858055, now seen corresponding path program 1 times [2024-01-27 14:59:29,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:29,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338550320] [2024-01-27 14:59:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:29,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:29,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:29,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338550320] [2024-01-27 14:59:29,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338550320] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:29,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:29,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:59:29,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083791123] [2024-01-27 14:59:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:29,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:59:29,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:29,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:59:29,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:59:29,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 94 [2024-01-27 14:59:29,931 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) [2024-01-27 14:59:29,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:29,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 94 [2024-01-27 14:59:29,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:29,964 INFO L124 PetriNetUnfolderBase]: 29/332 cut-off events. [2024-01-27 14:59:29,964 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-01-27 14:59:29,965 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 1528 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. [2024-01-27 14:59:29,966 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 15 selfloop transitions, 4 changer transitions 2/71 dead transitions. [2024-01-27 14:59:29,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 71 transitions, 236 flow [2024-01-27 14:59:29,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:59:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:59:29,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2024-01-27 14:59:29,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.875886524822695 [2024-01-27 14:59:29,967 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 190 flow. Second operand 3 states and 247 transitions. [2024-01-27 14:59:29,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 71 transitions, 236 flow [2024-01-27 14:59:29,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 71 transitions, 213 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-01-27 14:59:29,971 INFO L231 Difference]: Finished difference. Result has 77 places, 66 transitions, 169 flow [2024-01-27 14:59:29,971 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} [2024-01-27 14:59:29,973 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -16 predicate places. [2024-01-27 14:59:29,973 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 169 flow [2024-01-27 14:59:29,973 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) [2024-01-27 14:59:29,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:29,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:59:29,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:59:29,974 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)] === [2024-01-27 14:59:29,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:29,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1951049356, now seen corresponding path program 1 times [2024-01-27 14:59:29,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:29,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35693574] [2024-01-27 14:59:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:30,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:30,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35693574] [2024-01-27 14:59:30,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35693574] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:30,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:30,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:59:30,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806154632] [2024-01-27 14:59:30,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:30,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:59:30,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:30,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:59:30,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:59:30,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 94 [2024-01-27 14:59:30,092 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) [2024-01-27 14:59:30,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:30,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 94 [2024-01-27 14:59:30,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:30,144 INFO L124 PetriNetUnfolderBase]: 34/261 cut-off events. [2024-01-27 14:59:30,145 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-01-27 14:59:30,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 261 events. 34/261 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 943 event pairs, 19 based on Foata normal form. 51/297 useless extension candidates. Maximal degree in co-relation 400. Up to 62 conditions per place. [2024-01-27 14:59:30,145 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 20 selfloop transitions, 2 changer transitions 24/65 dead transitions. [2024-01-27 14:59:30,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 223 flow [2024-01-27 14:59:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:59:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:59:30,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-01-27 14:59:30,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6148936170212767 [2024-01-27 14:59:30,147 INFO L175 Difference]: Start difference. First operand has 77 places, 66 transitions, 169 flow. Second operand 5 states and 289 transitions. [2024-01-27 14:59:30,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 223 flow [2024-01-27 14:59:30,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:59:30,148 INFO L231 Difference]: Finished difference. Result has 66 places, 36 transitions, 93 flow [2024-01-27 14:59:30,148 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} [2024-01-27 14:59:30,149 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -27 predicate places. [2024-01-27 14:59:30,149 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 36 transitions, 93 flow [2024-01-27 14:59:30,149 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) [2024-01-27 14:59:30,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:30,150 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] [2024-01-27 14:59:30,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:59:30,150 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)] === [2024-01-27 14:59:30,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash 322047283, now seen corresponding path program 1 times [2024-01-27 14:59:30,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:30,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295913557] [2024-01-27 14:59:30,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:30,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:59:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:59:30,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:59:30,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295913557] [2024-01-27 14:59:30,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295913557] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:59:30,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:59:30,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:59:30,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799303619] [2024-01-27 14:59:30,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:59:30,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 14:59:30,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:59:30,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 14:59:30,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 14:59:30,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2024-01-27 14:59:30,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 36 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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) [2024-01-27 14:59:30,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:59:30,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2024-01-27 14:59:30,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:59:30,362 INFO L124 PetriNetUnfolderBase]: 29/175 cut-off events. [2024-01-27 14:59:30,362 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-01-27 14:59:30,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 175 events. 29/175 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 614 event pairs, 13 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 291. Up to 43 conditions per place. [2024-01-27 14:59:30,363 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 17 selfloop transitions, 2 changer transitions 11/46 dead transitions. [2024-01-27 14:59:30,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 171 flow [2024-01-27 14:59:30,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 14:59:30,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 14:59:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 282 transitions. [2024-01-27 14:59:30,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-01-27 14:59:30,364 INFO L175 Difference]: Start difference. First operand has 66 places, 36 transitions, 93 flow. Second operand 6 states and 282 transitions. [2024-01-27 14:59:30,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 171 flow [2024-01-27 14:59:30,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:59:30,365 INFO L231 Difference]: Finished difference. Result has 52 places, 33 transitions, 88 flow [2024-01-27 14:59:30,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=88, PETRI_PLACES=52, PETRI_TRANSITIONS=33} [2024-01-27 14:59:30,368 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -41 predicate places. [2024-01-27 14:59:30,368 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 33 transitions, 88 flow [2024-01-27 14:59:30,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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) [2024-01-27 14:59:30,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:59:30,368 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, 1, 1, 1] [2024-01-27 14:59:30,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 14:59:30,369 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-27 14:59:30,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:59:30,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1271264989, now seen corresponding path program 1 times [2024-01-27 14:59:30,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:59:30,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689638173] [2024-01-27 14:59:30,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:59:30,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:59:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:59:30,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:59:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:59:30,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:59:30,396 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:59:30,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (72 of 73 remaining) [2024-01-27 14:59:30,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 73 remaining) [2024-01-27 14:59:30,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (69 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 73 remaining) [2024-01-27 14:59:30,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 73 remaining) [2024-01-27 14:59:30,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 73 remaining) [2024-01-27 14:59:30,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 73 remaining) [2024-01-27 14:59:30,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 73 remaining) [2024-01-27 14:59:30,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 73 remaining) [2024-01-27 14:59:30,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 73 remaining) [2024-01-27 14:59:30,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 73 remaining) [2024-01-27 14:59:30,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (50 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 73 remaining) [2024-01-27 14:59:30,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 73 remaining) [2024-01-27 14:59:30,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 73 remaining) [2024-01-27 14:59:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 73 remaining) [2024-01-27 14:59:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 73 remaining) [2024-01-27 14:59:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 73 remaining) [2024-01-27 14:59:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 73 remaining) [2024-01-27 14:59:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 73 remaining) [2024-01-27 14:59:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 73 remaining) [2024-01-27 14:59:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 73 remaining) [2024-01-27 14:59:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 73 remaining) [2024-01-27 14:59:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 73 remaining) [2024-01-27 14:59:30,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 73 remaining) [2024-01-27 14:59:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 73 remaining) [2024-01-27 14:59:30,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 14:59:30,408 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:59:30,413 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:59:30,413 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:59:30,449 INFO L503 ceAbstractionStarter]: Automizer considered 36 witness invariants [2024-01-27 14:59:30,449 INFO L504 ceAbstractionStarter]: WitnessConsidered=36 [2024-01-27 14:59:30,450 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:59:30 BasicIcfg [2024-01-27 14:59:30,450 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:59:30,451 INFO L158 Benchmark]: Toolchain (without parser) took 3210.49ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 114.3MB in the beginning and 94.2MB in the end (delta: 20.0MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2024-01-27 14:59:30,451 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:59:30,451 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:59:30,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.25ms. Allocated memory is still 153.1MB. Free memory was 114.3MB in the beginning and 89.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-27 14:59:30,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.76ms. Allocated memory is still 153.1MB. Free memory was 89.1MB in the beginning and 87.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:59:30,452 INFO L158 Benchmark]: Boogie Preprocessor took 57.94ms. Allocated memory is still 153.1MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:59:30,452 INFO L158 Benchmark]: RCFGBuilder took 478.72ms. Allocated memory is still 153.1MB. Free memory was 84.9MB in the beginning and 102.2MB in the end (delta: -17.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-01-27 14:59:30,452 INFO L158 Benchmark]: TraceAbstraction took 2086.07ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 101.2MB in the beginning and 94.2MB in the end (delta: 6.9MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2024-01-27 14:59:30,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.25ms. Allocated memory is still 153.1MB. Free memory was 114.3MB in the beginning and 89.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.76ms. Allocated memory is still 153.1MB. Free memory was 89.1MB in the beginning and 87.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.94ms. Allocated memory is still 153.1MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.72ms. Allocated memory is still 153.1MB. Free memory was 84.9MB in the beginning and 102.2MB in the end (delta: -17.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2086.07ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 101.2MB in the beginning and 94.2MB in the end (delta: 6.9MB). Peak memory consumption was 50.9MB. 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=42] [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=42] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] COND TRUE 1 t == 42 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 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=42] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[42]]]] [L688] 1 glob1 = 1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]]] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[t]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [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=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[1]]]]] [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, 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: 1.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 767 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 499 mSDsluCounter, 213 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 717 IncrementalHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 150 mSolverCounterUnsat, 90 mSDtfsCounter, 717 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=1, InterpolantAutomatonStates: 31, 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, 0.5s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2024-01-27 14:59:30,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE