./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.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_19-publish-precision_unknown_2_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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_19-publish-precision_unknown_2_neg.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_19-publish-precision_unknown_2_neg.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-3d25acf-m [2024-01-30 14:40:18,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:40:18,365 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:40:18,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:40:18,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:40:18,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:40:18,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:40:18,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:40:18,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:40:18,397 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:40:18,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:40:18,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:40:18,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:40:18,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:40:18,400 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:40:18,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:40:18,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:40:18,400 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:40:18,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:40:18,401 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:40:18,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:40:18,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:40:18,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:40:18,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:40:18,403 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:40:18,403 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:40:18,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:40:18,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:40:18,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:40:18,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:40:18,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:40:18,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:40:18,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:40:18,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:40:18,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:40:18,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:40:18,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:40:18,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:40:18,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:40:18,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:40:18,407 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:40:18,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:40:18,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:40:18,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:40:18,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:40:18,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:40:18,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:40:18,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:40:18,643 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:40:18,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-01-30 14:40:19,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:40:19,779 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:40:19,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-01-30 14:40:19,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b085bb0/5492340bba6e4d4bba144402b3301176/FLAG3668a7eba [2024-01-30 14:40:19,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b085bb0/5492340bba6e4d4bba144402b3301176 [2024-01-30 14:40:19,816 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:40:19,817 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:40:19,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_19-publish-precision_unknown_2_neg.yml/witness.yml [2024-01-30 14:40:19,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:40:19,913 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:40:19,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:40:19,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:40:19,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:40:19,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:40:19" (1/2) ... [2024-01-30 14:40:19,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b5fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:40:19, skipping insertion in model container [2024-01-30 14:40:19,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:40:19" (1/2) ... [2024-01-30 14:40:19,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3322336c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:40:19, skipping insertion in model container [2024-01-30 14:40:19,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:40:19" (2/2) ... [2024-01-30 14:40:19,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b5fe3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:19, skipping insertion in model container [2024-01-30 14:40:19,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:40:19" (2/2) ... [2024-01-30 14:40:19,921 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:40:19,970 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:40:19,971 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-30 14:40:19,971 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 5) [2024-01-30 14:40:19,972 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:40:19,972 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-30 14:40:19,972 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 0 [2024-01-30 14:40:19,972 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (glob1 == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:40:19,973 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (glob1 == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:40:19,973 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] ((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5) [2024-01-30 14:40:19,973 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:40:19,973 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:40:19,973 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] ((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5) [2024-01-30 14:40:19,973 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 5) [2024-01-30 14:40:19,973 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] ((((((((((((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5)) && (0 <= glob1)) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5)) && (0 <= glob1)) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5) [2024-01-30 14:40:20,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:40:20,119 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_19-publish-precision_unknown_2_neg.i[1103,1116] [2024-01-30 14:40:20,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:40:20,239 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:40:20,260 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_19-publish-precision_unknown_2_neg.i[1103,1116] [2024-01-30 14:40:20,262 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 [2024-01-30 14:40:20,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:40:20,337 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:40:20,338 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20 WrapperNode [2024-01-30 14:40:20,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:40:20,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:40:20,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:40:20,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:40:20,343 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 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,352 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 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,366 INFO L138 Inliner]: procedures = 163, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-01-30 14:40:20,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:40:20,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:40:20,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:40:20,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:40:20,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,376 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,393 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 2, 5, 5]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 5, 5]. The 1 writes are split as follows [0, 1, 0, 0]. [2024-01-30 14:40:20,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:40:20,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:40:20,403 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:40:20,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:40:20,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (1/1) ... [2024-01-30 14:40:20,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:40:20,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:40:20,424 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) [2024-01-30 14:40:20,428 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 [2024-01-30 14:40:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:40:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:40:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-30 14:40:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:40:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:40:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:40:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:40:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:40:20,455 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:40:20,553 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:40:20,555 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:40:20,784 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:40:20,787 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:40:20,853 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:40:20,853 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:40:20,853 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:40:20 BoogieIcfgContainer [2024-01-30 14:40:20,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:40:20,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:40:20,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:40:20,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:40:20,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:40:19" (1/4) ... [2024-01-30 14:40:20,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fed8bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:40:20, skipping insertion in model container [2024-01-30 14:40:20,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:40:19" (2/4) ... [2024-01-30 14:40:20,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fed8bab and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:40:20, skipping insertion in model container [2024-01-30 14:40:20,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:40:20" (3/4) ... [2024-01-30 14:40:20,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fed8bab and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:40:20, skipping insertion in model container [2024-01-30 14:40:20,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:40:20" (4/4) ... [2024-01-30 14:40:20,859 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2024-01-30 14:40:20,873 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:40:20,873 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-01-30 14:40:20,873 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:40:20,926 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-30 14:40:20,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 52 transitions, 111 flow [2024-01-30 14:40:20,982 INFO L124 PetriNetUnfolderBase]: 1/51 cut-off events. [2024-01-30 14:40:20,982 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:40:20,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 51 events. 1/51 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-01-30 14:40:20,988 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 52 transitions, 111 flow [2024-01-30 14:40:20,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 49 transitions, 101 flow [2024-01-30 14:40:21,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:40:21,007 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;@6e9362f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:40:21,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-01-30 14:40:21,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:40:21,010 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:40:21,010 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:40:21,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:40:21,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:40:21,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-01-30 14:40:21,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:40:21,015 INFO L85 PathProgramCache]: Analyzing trace with hash 7461, now seen corresponding path program 1 times [2024-01-30 14:40:21,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:40:21,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676288984] [2024-01-30 14:40:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:40:21,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:40:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:40:21,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:40:21,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:40:21,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676288984] [2024-01-30 14:40:21,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676288984] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:40:21,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:40:21,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:40:21,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751749966] [2024-01-30 14:40:21,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:40:21,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:40:21,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:40:21,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:40:21,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:40:21,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2024-01-30 14:40:21,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-01-30 14:40:21,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:40:21,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2024-01-30 14:40:21,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:40:21,406 INFO L124 PetriNetUnfolderBase]: 86/312 cut-off events. [2024-01-30 14:40:21,407 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:40:21,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 312 events. 86/312 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1480 event pairs, 56 based on Foata normal form. 23/319 useless extension candidates. Maximal degree in co-relation 514. Up to 125 conditions per place. [2024-01-30 14:40:21,413 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 27 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-01-30 14:40:21,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 169 flow [2024-01-30 14:40:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:40:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:40:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2024-01-30 14:40:21,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2024-01-30 14:40:21,425 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 101 flow. Second operand 3 states and 107 transitions. [2024-01-30 14:40:21,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 169 flow [2024-01-30 14:40:21,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:40:21,432 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 109 flow [2024-01-30 14:40:21,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2024-01-30 14:40:21,438 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2024-01-30 14:40:21,438 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 109 flow [2024-01-30 14:40:21,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-01-30 14:40:21,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:40:21,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:40:21,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:40:21,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-01-30 14:40:21,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:40:21,441 INFO L85 PathProgramCache]: Analyzing trace with hash 222556606, now seen corresponding path program 1 times [2024-01-30 14:40:21,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:40:21,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807974055] [2024-01-30 14:40:21,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:40:21,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:40:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:40:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:40:21,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:40:21,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807974055] [2024-01-30 14:40:21,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807974055] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:40:21,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:40:21,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:40:21,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871262213] [2024-01-30 14:40:21,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:40:21,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:40:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:40:21,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:40:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:40:21,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 52 [2024-01-30 14:40:21,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2024-01-30 14:40:21,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:40:21,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 52 [2024-01-30 14:40:21,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:40:21,681 INFO L124 PetriNetUnfolderBase]: 60/265 cut-off events. [2024-01-30 14:40:21,681 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-01-30 14:40:21,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 265 events. 60/265 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1220 event pairs, 36 based on Foata normal form. 7/238 useless extension candidates. Maximal degree in co-relation 433. Up to 138 conditions per place. [2024-01-30 14:40:21,683 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 23 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-01-30 14:40:21,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 167 flow [2024-01-30 14:40:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:40:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:40:21,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-01-30 14:40:21,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6682692307692307 [2024-01-30 14:40:21,684 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 109 flow. Second operand 4 states and 139 transitions. [2024-01-30 14:40:21,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 167 flow [2024-01-30 14:40:21,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 161 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:40:21,686 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 103 flow [2024-01-30 14:40:21,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-01-30 14:40:21,687 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2024-01-30 14:40:21,687 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 103 flow [2024-01-30 14:40:21,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2024-01-30 14:40:21,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:40:21,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:40:21,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:40:21,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-01-30 14:40:21,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:40:21,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1245397464, now seen corresponding path program 1 times [2024-01-30 14:40:21,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:40:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875706488] [2024-01-30 14:40:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:40:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:40:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:40:21,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:40:21,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:40:21,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875706488] [2024-01-30 14:40:21,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875706488] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:40:21,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:40:21,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:40:21,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114460380] [2024-01-30 14:40:21,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:40:21,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:40:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:40:21,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:40:21,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:40:21,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-01-30 14:40:21,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-01-30 14:40:21,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:40:21,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-01-30 14:40:21,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:40:21,986 INFO L124 PetriNetUnfolderBase]: 104/326 cut-off events. [2024-01-30 14:40:21,986 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-01-30 14:40:21,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 326 events. 104/326 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1444 event pairs, 14 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 591. Up to 142 conditions per place. [2024-01-30 14:40:21,990 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 35 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2024-01-30 14:40:21,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 197 flow [2024-01-30 14:40:21,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:40:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:40:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-01-30 14:40:21,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951923076923077 [2024-01-30 14:40:21,994 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 103 flow. Second operand 4 states and 103 transitions. [2024-01-30 14:40:21,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 197 flow [2024-01-30 14:40:21,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 53 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:40:21,997 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 100 flow [2024-01-30 14:40:21,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-01-30 14:40:21,998 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2024-01-30 14:40:21,998 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 100 flow [2024-01-30 14:40:21,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-01-30 14:40:21,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:40:21,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:40:21,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:40:21,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-01-30 14:40:21,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:40:21,999 INFO L85 PathProgramCache]: Analyzing trace with hash -808830339, now seen corresponding path program 1 times [2024-01-30 14:40:22,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:40:22,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136947842] [2024-01-30 14:40:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:40:22,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:40:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:40:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:40:22,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:40:22,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136947842] [2024-01-30 14:40:22,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136947842] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:40:22,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:40:22,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:40:22,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592194124] [2024-01-30 14:40:22,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:40:22,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:40:22,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:40:22,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:40:22,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:40:22,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 52 [2024-01-30 14:40:22,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-01-30 14:40:22,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:40:22,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 52 [2024-01-30 14:40:22,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:40:22,156 INFO L124 PetriNetUnfolderBase]: 115/338 cut-off events. [2024-01-30 14:40:22,156 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-01-30 14:40:22,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 338 events. 115/338 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1512 event pairs, 48 based on Foata normal form. 6/328 useless extension candidates. Maximal degree in co-relation 631. Up to 128 conditions per place. [2024-01-30 14:40:22,159 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 34 selfloop transitions, 10 changer transitions 7/66 dead transitions. [2024-01-30 14:40:22,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 66 transitions, 258 flow [2024-01-30 14:40:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:40:22,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:40:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-01-30 14:40:22,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6576923076923077 [2024-01-30 14:40:22,162 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 100 flow. Second operand 5 states and 171 transitions. [2024-01-30 14:40:22,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 66 transitions, 258 flow [2024-01-30 14:40:22,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 66 transitions, 246 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:40:22,163 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 155 flow [2024-01-30 14:40:22,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2024-01-30 14:40:22,165 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-01-30 14:40:22,165 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 155 flow [2024-01-30 14:40:22,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-01-30 14:40:22,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:40:22,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:40:22,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:40:22,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-01-30 14:40:22,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:40:22,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1411026869, now seen corresponding path program 1 times [2024-01-30 14:40:22,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:40:22,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674118853] [2024-01-30 14:40:22,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:40:22,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:40:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:40:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:40:22,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:40:22,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674118853] [2024-01-30 14:40:22,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674118853] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:40:22,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:40:22,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:40:22,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977650513] [2024-01-30 14:40:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:40:22,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:40:22,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:40:22,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:40:22,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:40:22,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-01-30 14:40:22,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-01-30 14:40:22,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:40:22,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-01-30 14:40:22,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:40:22,342 INFO L124 PetriNetUnfolderBase]: 100/296 cut-off events. [2024-01-30 14:40:22,342 INFO L125 PetriNetUnfolderBase]: For 198/209 co-relation queries the response was YES. [2024-01-30 14:40:22,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 296 events. 100/296 cut-off events. For 198/209 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1206 event pairs, 17 based on Foata normal form. 34/328 useless extension candidates. Maximal degree in co-relation 673. Up to 135 conditions per place. [2024-01-30 14:40:22,343 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 23 selfloop transitions, 3 changer transitions 14/50 dead transitions. [2024-01-30 14:40:22,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 50 transitions, 237 flow [2024-01-30 14:40:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:40:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:40:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-01-30 14:40:22,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49038461538461536 [2024-01-30 14:40:22,344 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 155 flow. Second operand 4 states and 102 transitions. [2024-01-30 14:40:22,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 50 transitions, 237 flow [2024-01-30 14:40:22,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:40:22,349 INFO L231 Difference]: Finished difference. Result has 51 places, 32 transitions, 99 flow [2024-01-30 14:40:22,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=51, PETRI_TRANSITIONS=32} [2024-01-30 14:40:22,350 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2024-01-30 14:40:22,350 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 32 transitions, 99 flow [2024-01-30 14:40:22,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-01-30 14:40:22,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:40:22,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:40:22,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:40:22,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-01-30 14:40:22,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:40:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash 633960501, now seen corresponding path program 1 times [2024-01-30 14:40:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:40:22,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653339478] [2024-01-30 14:40:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:40:22,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:40:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:40:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:40:22,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:40:22,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653339478] [2024-01-30 14:40:22,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653339478] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:40:22,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:40:22,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:40:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20724165] [2024-01-30 14:40:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:40:22,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:40:22,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:40:22,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:40:22,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:40:22,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 52 [2024-01-30 14:40:22,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 32 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2024-01-30 14:40:22,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:40:22,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 52 [2024-01-30 14:40:22,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:40:22,470 INFO L124 PetriNetUnfolderBase]: 13/69 cut-off events. [2024-01-30 14:40:22,471 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-01-30 14:40:22,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 69 events. 13/69 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 6 based on Foata normal form. 7/70 useless extension candidates. Maximal degree in co-relation 135. Up to 23 conditions per place. [2024-01-30 14:40:22,471 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 7 selfloop transitions, 4 changer transitions 14/36 dead transitions. [2024-01-30 14:40:22,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 36 transitions, 145 flow [2024-01-30 14:40:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:40:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:40:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-01-30 14:40:22,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7019230769230769 [2024-01-30 14:40:22,472 INFO L175 Difference]: Start difference. First operand has 51 places, 32 transitions, 99 flow. Second operand 4 states and 146 transitions. [2024-01-30 14:40:22,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 36 transitions, 145 flow [2024-01-30 14:40:22,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 121 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-01-30 14:40:22,474 INFO L231 Difference]: Finished difference. Result has 41 places, 21 transitions, 59 flow [2024-01-30 14:40:22,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=59, PETRI_PLACES=41, PETRI_TRANSITIONS=21} [2024-01-30 14:40:22,476 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2024-01-30 14:40:22,476 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 21 transitions, 59 flow [2024-01-30 14:40:22,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2024-01-30 14:40:22,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:40:22,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:40:22,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:40:22,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-01-30 14:40:22,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:40:22,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1747438276, now seen corresponding path program 1 times [2024-01-30 14:40:22,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:40:22,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102991914] [2024-01-30 14:40:22,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:40:22,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:40:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:40:22,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:40:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:40:22,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:40:22,531 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:40:22,532 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (22 of 23 remaining) [2024-01-30 14:40:22,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 23 remaining) [2024-01-30 14:40:22,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 23 remaining) [2024-01-30 14:40:22,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 23 remaining) [2024-01-30 14:40:22,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 23 remaining) [2024-01-30 14:40:22,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 23 remaining) [2024-01-30 14:40:22,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 23 remaining) [2024-01-30 14:40:22,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 23 remaining) [2024-01-30 14:40:22,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 23 remaining) [2024-01-30 14:40:22,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 23 remaining) [2024-01-30 14:40:22,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 23 remaining) [2024-01-30 14:40:22,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 23 remaining) [2024-01-30 14:40:22,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 23 remaining) [2024-01-30 14:40:22,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 23 remaining) [2024-01-30 14:40:22,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:40:22,537 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:40:22,542 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:40:22,542 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:40:22,574 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-01-30 14:40:22,575 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-01-30 14:40:22,575 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:40:22 BasicIcfg [2024-01-30 14:40:22,575 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:40:22,577 INFO L158 Benchmark]: Toolchain (without parser) took 2662.65ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 118.9MB in the beginning and 115.0MB in the end (delta: 3.9MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2024-01-30 14:40:22,577 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 119.5MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:40:22,577 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:40:22,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.92ms. Allocated memory is still 155.2MB. Free memory was 118.4MB in the beginning and 95.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-30 14:40:22,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.18ms. Allocated memory is still 155.2MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:40:22,578 INFO L158 Benchmark]: Boogie Preprocessor took 35.84ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 91.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-30 14:40:22,578 INFO L158 Benchmark]: RCFGBuilder took 450.23ms. Allocated memory is still 155.2MB. Free memory was 91.2MB in the beginning and 105.4MB in the end (delta: -14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-30 14:40:22,578 INFO L158 Benchmark]: TraceAbstraction took 1720.51ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 105.4MB in the beginning and 115.0MB in the end (delta: -9.6MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2024-01-30 14:40:22,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 119.5MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.92ms. Allocated memory is still 155.2MB. Free memory was 118.4MB in the beginning and 95.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.18ms. Allocated memory is still 155.2MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.84ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 91.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 450.23ms. Allocated memory is still 155.2MB. Free memory was 91.2MB in the beginning and 105.4MB in the end (delta: -14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1720.51ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 105.4MB in the beginning and 115.0MB in the end (delta: -9.6MB). Peak memory consumption was 36.4MB. 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L697] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L685] 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}, mutex2={4:0}] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[5]]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[glob1],IntegerLiteral[5]],IntegerLiteral[0]]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, mutex2={4:0}] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[5]]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[glob1],IntegerLiteral[5]],IntegerLiteral[0]]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]]]] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[5]]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[glob1],IntegerLiteral[5]],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]]]] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: 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: 697]: 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: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 689]: 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: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 23 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 422 IncrementalHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 16 mSDtfsCounter, 422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-30 14:40:22,600 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