./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.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_30-traces-oplus-vs-meet_true.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_30-traces-oplus-vs-meet_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_30-traces-oplus-vs-meet_true.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 14:21:32,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:21:32,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:21:32,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:21:32,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:21:32,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:21:32,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:21:32,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:21:33,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:21:33,003 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:21:33,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:21:33,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:21:33,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:21:33,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:21:33,011 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:21:33,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:21:33,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:21:33,011 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:21:33,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:21:33,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:21:33,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:21:33,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:21:33,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:21:33,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:21:33,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:21:33,015 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:21:33,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:21:33,015 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:21:33,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:21:33,016 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:21:33,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:21:33,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:21:33,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:33,017 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:21:33,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:21:33,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:21:33,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:21:33,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:21:33,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:21:33,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:21:33,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:21:33,019 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:21:33,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:21:33,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:21:33,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:21:33,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:21:33,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:21:33,244 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:21:33,244 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:21:33,245 INFO L431 ainManager$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_30-traces-oplus-vs-meet_true.yml/witness.yml [2024-01-30 14:21:33,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:21:33,309 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:21:33,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-01-30 14:21:34,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:21:34,726 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:21:34,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-01-30 14:21:34,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19874aaf0/1d2789c7d8a84a8797f2a68e79117cc0/FLAG54a44d222 [2024-01-30 14:21:34,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19874aaf0/1d2789c7d8a84a8797f2a68e79117cc0 [2024-01-30 14:21:34,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:21:34,758 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:21:34,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:34,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:21:34,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:21:34,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:33" (1/2) ... [2024-01-30 14:21:34,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f414100 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:34, skipping insertion in model container [2024-01-30 14:21:34,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:33" (1/2) ... [2024-01-30 14:21:34,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29cec6e5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:34, skipping insertion in model container [2024-01-30 14:21:34,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:34" (2/2) ... [2024-01-30 14:21:34,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f414100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34, skipping insertion in model container [2024-01-30 14:21:34,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:34" (2/2) ... [2024-01-30 14:21:34,768 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:21:34,797 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:21:34,799 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,799 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 0 [2024-01-30 14:21:34,799 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (g == 0) && (g == 0) [2024-01-30 14:21:34,799 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,799 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-30 14:21:34,800 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 0 [2024-01-30 14:21:34,800 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-30 14:21:34,800 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,800 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 0 [2024-01-30 14:21:34,800 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,801 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 0 [2024-01-30 14:21:34,801 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,801 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,801 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,801 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g == 0 [2024-01-30 14:21:34,801 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g == 0 [2024-01-30 14:21:34,835 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:21:34,973 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_30-traces-oplus-vs-meet_true.i[1097,1110] [2024-01-30 14:21:35,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:35,108 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:21:35,120 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_30-traces-oplus-vs-meet_true.i[1097,1110] [2024-01-30 14:21:35,120 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 [2024-01-30 14:21:35,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:35,210 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:21:35,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35 WrapperNode [2024-01-30 14:21:35,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:35,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:35,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:21:35,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:21:35,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,241 INFO L138 Inliner]: procedures = 163, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-01-30 14:21:35,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:35,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:21:35,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:21:35,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:21:35,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,253 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,263 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-30 14:21:35,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:21:35,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:21:35,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:21:35,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:21:35,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (1/1) ... [2024-01-30 14:21:35,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:21:35,297 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 14:21:35,311 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 14:21:35,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:21:35,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:21:35,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-30 14:21:35,331 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-30 14:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:21:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:21:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:21:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:21:35,333 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 14:21:35,436 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:21:35,437 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:21:35,668 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:21:35,668 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:21:35,724 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:21:35,724 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:21:35,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:35 BoogieIcfgContainer [2024-01-30 14:21:35,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:21:35,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:21:35,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:21:35,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:21:35,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:33" (1/4) ... [2024-01-30 14:21:35,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3d9450 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:21:34" (2/4) ... [2024-01-30 14:21:35,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3d9450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35" (3/4) ... [2024-01-30 14:21:35,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3d9450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:35" (4/4) ... [2024-01-30 14:21:35,733 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2024-01-30 14:21:35,746 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:21:35,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-01-30 14:21:35,747 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:21:35,782 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-30 14:21:35,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 141 flow [2024-01-30 14:21:35,871 INFO L124 PetriNetUnfolderBase]: 2/66 cut-off events. [2024-01-30 14:21:35,871 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:21:35,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-01-30 14:21:35,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 141 flow [2024-01-30 14:21:35,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 64 transitions, 131 flow [2024-01-30 14:21:35,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:21:35,899 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;@1e10ce47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:21:35,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-01-30 14:21:35,902 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:21:35,902 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:21:35,903 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:35,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:35,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:21:35,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 24 more)] === [2024-01-30 14:21:35,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash 8933, now seen corresponding path program 1 times [2024-01-30 14:21:35,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:35,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228106441] [2024-01-30 14:21:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:35,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:36,088 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 14:21:36,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:36,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228106441] [2024-01-30 14:21:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228106441] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:21:36,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727367469] [2024-01-30 14:21:36,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:36,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:36,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:36,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:36,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2024-01-30 14:21:36,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 64 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 14:21:36,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:36,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2024-01-30 14:21:36,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:36,330 INFO L124 PetriNetUnfolderBase]: 183/660 cut-off events. [2024-01-30 14:21:36,330 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:36,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 660 events. 183/660 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3900 event pairs, 115 based on Foata normal form. 47/673 useless extension candidates. Maximal degree in co-relation 1103. Up to 325 conditions per place. [2024-01-30 14:21:36,338 INFO L140 encePairwiseOnDemand]: 50/67 looper letters, 40 selfloop transitions, 7 changer transitions 0/73 dead transitions. [2024-01-30 14:21:36,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 73 transitions, 243 flow [2024-01-30 14:21:36,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:36,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-01-30 14:21:36,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6965174129353234 [2024-01-30 14:21:36,351 INFO L175 Difference]: Start difference. First operand has 66 places, 64 transitions, 131 flow. Second operand 3 states and 140 transitions. [2024-01-30 14:21:36,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 73 transitions, 243 flow [2024-01-30 14:21:36,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:36,357 INFO L231 Difference]: Finished difference. Result has 67 places, 64 transitions, 178 flow [2024-01-30 14:21:36,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=67, PETRI_TRANSITIONS=64} [2024-01-30 14:21:36,376 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2024-01-30 14:21:36,376 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 64 transitions, 178 flow [2024-01-30 14:21:36,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 14:21:36,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:36,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:21:36,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:21:36,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 24 more)] === [2024-01-30 14:21:36,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:36,378 INFO L85 PathProgramCache]: Analyzing trace with hash 8593078, now seen corresponding path program 1 times [2024-01-30 14:21:36,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:36,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429225257] [2024-01-30 14:21:36,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:36,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:36,470 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 14:21:36,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:36,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429225257] [2024-01-30 14:21:36,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429225257] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:36,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:36,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:36,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345022333] [2024-01-30 14:21:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:36,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:36,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:36,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:36,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:36,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 67 [2024-01-30 14:21:36,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 64 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 14:21:36,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:36,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 67 [2024-01-30 14:21:36,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:36,694 INFO L124 PetriNetUnfolderBase]: 199/668 cut-off events. [2024-01-30 14:21:36,698 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-01-30 14:21:36,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1378 conditions, 668 events. 199/668 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3834 event pairs, 106 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 1358. Up to 293 conditions per place. [2024-01-30 14:21:36,703 INFO L140 encePairwiseOnDemand]: 55/67 looper letters, 51 selfloop transitions, 14 changer transitions 1/86 dead transitions. [2024-01-30 14:21:36,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 86 transitions, 366 flow [2024-01-30 14:21:36,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:36,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:36,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-01-30 14:21:36,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5492537313432836 [2024-01-30 14:21:36,727 INFO L175 Difference]: Start difference. First operand has 67 places, 64 transitions, 178 flow. Second operand 5 states and 184 transitions. [2024-01-30 14:21:36,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 86 transitions, 366 flow [2024-01-30 14:21:36,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 86 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:36,732 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 194 flow [2024-01-30 14:21:36,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-01-30 14:21:36,733 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-01-30 14:21:36,733 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 194 flow [2024-01-30 14:21:36,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 14:21:36,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:36,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:36,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:21:36,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 24 more)] === [2024-01-30 14:21:36,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:36,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1154038066, now seen corresponding path program 1 times [2024-01-30 14:21:36,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:36,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870353742] [2024-01-30 14:21:36,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:36,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:36,823 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 14:21:36,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:36,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870353742] [2024-01-30 14:21:36,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870353742] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:36,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:36,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:36,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467393787] [2024-01-30 14:21:36,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:36,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:36,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:36,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:36,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:36,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 67 [2024-01-30 14:21:36,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 14:21:36,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:36,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 67 [2024-01-30 14:21:36,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:36,931 INFO L124 PetriNetUnfolderBase]: 113/544 cut-off events. [2024-01-30 14:21:36,931 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-01-30 14:21:36,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 544 events. 113/544 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3362 event pairs, 23 based on Foata normal form. 9/502 useless extension candidates. Maximal degree in co-relation 974. Up to 244 conditions per place. [2024-01-30 14:21:36,933 INFO L140 encePairwiseOnDemand]: 63/67 looper letters, 33 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-01-30 14:21:36,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 69 transitions, 282 flow [2024-01-30 14:21:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:36,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-01-30 14:21:36,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6902985074626866 [2024-01-30 14:21:36,935 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 194 flow. Second operand 4 states and 185 transitions. [2024-01-30 14:21:36,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 69 transitions, 282 flow [2024-01-30 14:21:36,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 69 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-30 14:21:36,937 INFO L231 Difference]: Finished difference. Result has 66 places, 61 transitions, 194 flow [2024-01-30 14:21:36,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=66, PETRI_TRANSITIONS=61} [2024-01-30 14:21:36,938 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2024-01-30 14:21:36,938 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 194 flow [2024-01-30 14:21:36,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 14:21:36,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:36,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:36,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:21:36,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 24 more)] === [2024-01-30 14:21:36,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:36,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1265491117, now seen corresponding path program 1 times [2024-01-30 14:21:36,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:36,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78568329] [2024-01-30 14:21:36,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:36,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:36,979 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 14:21:36,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:36,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78568329] [2024-01-30 14:21:36,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78568329] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:36,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:36,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:36,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117699639] [2024-01-30 14:21:36,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:36,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:36,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:36,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:36,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:37,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 67 [2024-01-30 14:21:37,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 14:21:37,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:37,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 67 [2024-01-30 14:21:37,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,104 INFO L124 PetriNetUnfolderBase]: 205/644 cut-off events. [2024-01-30 14:21:37,104 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2024-01-30 14:21:37,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 644 events. 205/644 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3560 event pairs, 27 based on Foata normal form. 12/656 useless extension candidates. Maximal degree in co-relation 1397. Up to 254 conditions per place. [2024-01-30 14:21:37,107 INFO L140 encePairwiseOnDemand]: 55/67 looper letters, 52 selfloop transitions, 9 changer transitions 1/76 dead transitions. [2024-01-30 14:21:37,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 360 flow [2024-01-30 14:21:37,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-01-30 14:21:37,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5223880597014925 [2024-01-30 14:21:37,108 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 194 flow. Second operand 4 states and 140 transitions. [2024-01-30 14:21:37,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 76 transitions, 360 flow [2024-01-30 14:21:37,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:37,111 INFO L231 Difference]: Finished difference. Result has 63 places, 56 transitions, 195 flow [2024-01-30 14:21:37,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=195, PETRI_PLACES=63, PETRI_TRANSITIONS=56} [2024-01-30 14:21:37,111 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2024-01-30 14:21:37,112 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 56 transitions, 195 flow [2024-01-30 14:21:37,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 14:21:37,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:37,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:21:37,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 24 more)] === [2024-01-30 14:21:37,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,113 INFO L85 PathProgramCache]: Analyzing trace with hash -214259312, now seen corresponding path program 1 times [2024-01-30 14:21:37,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864184957] [2024-01-30 14:21:37,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,172 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 14:21:37,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864184957] [2024-01-30 14:21:37,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864184957] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:37,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204532447] [2024-01-30 14:21:37,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:37,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:37,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:37,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 67 [2024-01-30 14:21:37,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 56 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 14:21:37,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:37,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 67 [2024-01-30 14:21:37,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,310 INFO L124 PetriNetUnfolderBase]: 163/497 cut-off events. [2024-01-30 14:21:37,310 INFO L125 PetriNetUnfolderBase]: For 341/342 co-relation queries the response was YES. [2024-01-30 14:21:37,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 497 events. 163/497 cut-off events. For 341/342 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2374 event pairs, 24 based on Foata normal form. 56/546 useless extension candidates. Maximal degree in co-relation 1107. Up to 253 conditions per place. [2024-01-30 14:21:37,312 INFO L140 encePairwiseOnDemand]: 57/67 looper letters, 39 selfloop transitions, 4 changer transitions 8/66 dead transitions. [2024-01-30 14:21:37,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 305 flow [2024-01-30 14:21:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:37,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-01-30 14:21:37,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6007462686567164 [2024-01-30 14:21:37,314 INFO L175 Difference]: Start difference. First operand has 63 places, 56 transitions, 195 flow. Second operand 4 states and 161 transitions. [2024-01-30 14:21:37,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 305 flow [2024-01-30 14:21:37,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 66 transitions, 295 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:37,316 INFO L231 Difference]: Finished difference. Result has 60 places, 46 transitions, 147 flow [2024-01-30 14:21:37,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=60, PETRI_TRANSITIONS=46} [2024-01-30 14:21:37,317 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -6 predicate places. [2024-01-30 14:21:37,317 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 46 transitions, 147 flow [2024-01-30 14:21:37,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 14:21:37,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:37,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:21:37,318 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 24 more)] === [2024-01-30 14:21:37,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1443751573, now seen corresponding path program 1 times [2024-01-30 14:21:37,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925550281] [2024-01-30 14:21:37,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,453 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 14:21:37,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925550281] [2024-01-30 14:21:37,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925550281] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:37,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104569399] [2024-01-30 14:21:37,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:37,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 67 [2024-01-30 14:21:37,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 46 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 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 14:21:37,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:37,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 67 [2024-01-30 14:21:37,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,494 INFO L124 PetriNetUnfolderBase]: 25/126 cut-off events. [2024-01-30 14:21:37,494 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-01-30 14:21:37,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 126 events. 25/126 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 338 event pairs, 6 based on Foata normal form. 11/131 useless extension candidates. Maximal degree in co-relation 234. Up to 53 conditions per place. [2024-01-30 14:21:37,495 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 8 selfloop transitions, 4 changer transitions 22/45 dead transitions. [2024-01-30 14:21:37,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 45 transitions, 179 flow [2024-01-30 14:21:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2024-01-30 14:21:37,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7126865671641791 [2024-01-30 14:21:37,496 INFO L175 Difference]: Start difference. First operand has 60 places, 46 transitions, 147 flow. Second operand 4 states and 191 transitions. [2024-01-30 14:21:37,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 45 transitions, 179 flow [2024-01-30 14:21:37,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 153 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-01-30 14:21:37,498 INFO L231 Difference]: Finished difference. Result has 50 places, 22 transitions, 63 flow [2024-01-30 14:21:37,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=47, 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=63, PETRI_PLACES=50, PETRI_TRANSITIONS=22} [2024-01-30 14:21:37,498 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -16 predicate places. [2024-01-30 14:21:37,499 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 22 transitions, 63 flow [2024-01-30 14:21:37,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 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 14:21:37,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,499 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] [2024-01-30 14:21:37,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:21:37,499 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 24 more)] === [2024-01-30 14:21:37,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1813176402, now seen corresponding path program 1 times [2024-01-30 14:21:37,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701038694] [2024-01-30 14:21:37,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:21:37,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:21:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:21:37,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:21:37,533 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:21:37,534 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 27 remaining) [2024-01-30 14:21:37,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 27 remaining) [2024-01-30 14:21:37,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (24 of 27 remaining) [2024-01-30 14:21:37,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 27 remaining) [2024-01-30 14:21:37,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 27 remaining) [2024-01-30 14:21:37,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (21 of 27 remaining) [2024-01-30 14:21:37,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 27 remaining) [2024-01-30 14:21:37,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 27 remaining) [2024-01-30 14:21:37,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 27 remaining) [2024-01-30 14:21:37,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 27 remaining) [2024-01-30 14:21:37,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 27 remaining) [2024-01-30 14:21:37,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 27 remaining) [2024-01-30 14:21:37,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 27 remaining) [2024-01-30 14:21:37,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 27 remaining) [2024-01-30 14:21:37,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 27 remaining) [2024-01-30 14:21:37,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 27 remaining) [2024-01-30 14:21:37,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 27 remaining) [2024-01-30 14:21:37,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 27 remaining) [2024-01-30 14:21:37,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 27 remaining) [2024-01-30 14:21:37,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 27 remaining) [2024-01-30 14:21:37,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 27 remaining) [2024-01-30 14:21:37,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 27 remaining) [2024-01-30 14:21:37,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 27 remaining) [2024-01-30 14:21:37,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 27 remaining) [2024-01-30 14:21:37,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 27 remaining) [2024-01-30 14:21:37,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 27 remaining) [2024-01-30 14:21:37,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 27 remaining) [2024-01-30 14:21:37,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:21:37,540 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:37,544 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:21:37,544 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:21:37,561 INFO L503 ceAbstractionStarter]: Automizer considered 15 witness invariants [2024-01-30 14:21:37,562 INFO L504 ceAbstractionStarter]: WitnessConsidered=15 [2024-01-30 14:21:37,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:21:37 BasicIcfg [2024-01-30 14:21:37,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:21:37,563 INFO L158 Benchmark]: Toolchain (without parser) took 2804.80ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 115.8MB in the beginning and 124.7MB in the end (delta: -8.9MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:37,563 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 174.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:37,563 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 174.1MB. Free memory was 137.6MB in the beginning and 137.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:37,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.26ms. Allocated memory is still 174.1MB. Free memory was 115.1MB in the beginning and 92.7MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:37,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.25ms. Allocated memory is still 174.1MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:37,564 INFO L158 Benchmark]: Boogie Preprocessor took 32.34ms. Allocated memory is still 174.1MB. Free memory was 90.6MB in the beginning and 88.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:37,564 INFO L158 Benchmark]: RCFGBuilder took 449.58ms. Allocated memory is still 174.1MB. Free memory was 87.8MB in the beginning and 59.2MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-30 14:21:37,565 INFO L158 Benchmark]: TraceAbstraction took 1835.35ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 58.5MB in the beginning and 124.7MB in the end (delta: -66.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:37,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 174.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 174.1MB. Free memory was 137.6MB in the beginning and 137.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.26ms. Allocated memory is still 174.1MB. Free memory was 115.1MB in the beginning and 92.7MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.25ms. Allocated memory is still 174.1MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.34ms. Allocated memory is still 174.1MB. Free memory was 90.6MB in the beginning and 88.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.58ms. Allocated memory is still 174.1MB. Free memory was 87.8MB in the beginning and 59.2MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1835.35ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 58.5MB in the beginning and 124.7MB in the end (delta: -66.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 700]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=0, id={5:0}] [L697] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] [L697] CALL 0 __VERIFIER_assert(g == 0) [L19] COND FALSE 0 !(!(cond)) VAL [A={3:0}, B={4:0}, \old(cond)=1, cond=1, g=0] [L697] RET 0 __VERIFIER_assert(g == 0) [L698] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=0, id={5:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=0] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=0] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] [L687] 1 g = 5 VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=5] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[5]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=5] [L700] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=5, id={5:0}] - 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: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 703]: 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: 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, 99 locations, 27 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: 1.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 458 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 301 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 555 IncrementalHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 52 mSDtfsCounter, 555 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=195occurred 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, 0.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 276 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 14:21:37,601 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