./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_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_44-traces-mine2_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_44-traces-mine2_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-a340643-m [2024-01-27 14:49:19,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:49:19,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:49:19,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:49:19,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:49:20,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:49:20,008 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:49:20,008 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:49:20,009 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:49:20,012 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:49:20,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:49:20,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:49:20,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:49:20,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:49:20,014 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:49:20,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:49:20,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:49:20,014 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:49:20,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:49:20,015 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:49:20,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:49:20,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:49:20,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:49:20,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:49:20,016 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:49:20,016 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:49:20,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:49:20,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:49:20,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:49:20,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:49:20,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:49:20,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:49:20,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:20,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:49:20,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:49:20,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:49:20,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:49:20,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:49:20,019 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:49:20,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:49:20,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:49:20,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:49:20,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:49:20,020 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:49:20,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:49:20,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:49:20,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:49:20,273 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:49:20,273 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:49:20,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-01-27 14:49:21,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:49:21,665 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:49:21,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-01-27 14:49:21,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f1650b8/cce852a7ac16432c8fb0ba98d55ac71b/FLAG9c9e1a599 [2024-01-27 14:49:21,690 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f1650b8/cce852a7ac16432c8fb0ba98d55ac71b [2024-01-27 14:49:21,692 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:49:21,693 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:49:21,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_44-traces-mine2_true.yml/witness.yml [2024-01-27 14:49:21,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:49:21,833 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:49:21,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:21,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:49:21,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:49:21,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:21" (1/2) ... [2024-01-27 14:49:21,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2280145a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:21, skipping insertion in model container [2024-01-27 14:49:21,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:21" (1/2) ... [2024-01-27 14:49:21,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6558b4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:21, skipping insertion in model container [2024-01-27 14:49:21,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:21" (2/2) ... [2024-01-27 14:49:21,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2280145a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:21, skipping insertion in model container [2024-01-27 14:49:21,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:21" (2/2) ... [2024-01-27 14:49:21,841 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:49:21,891 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:49:21,892 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 3 [2024-01-27 14:49:21,892 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 14:49:21,892 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 3 [2024-01-27 14:49:21,892 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 2 [2024-01-27 14:49:21,893 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 14:49:21,893 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L696] g == 3 [2024-01-27 14:49:21,893 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 2 [2024-01-27 14:49:21,893 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 14:49:21,893 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-27 14:49:21,893 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g == 3 [2024-01-27 14:49:21,893 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 3 [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 3 [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g == 3 [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 1 [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-27 14:49:21,894 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 3 [2024-01-27 14:49:21,895 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 3 [2024-01-27 14:49:21,895 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 14:49:21,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:49:22,103 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_44-traces-mine2_true.i[1089,1102] [2024-01-27 14:49:22,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:22,264 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:49:22,276 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_44-traces-mine2_true.i[1089,1102] [2024-01-27 14:49:22,277 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:49:22,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:22,359 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:49:22,359 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22 WrapperNode [2024-01-27 14:49:22,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:22,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:22,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:49:22,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:49:22,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,413 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-01-27 14:49:22,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:22,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:49:22,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:49:22,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:49:22,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,457 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 1, 5, 5]. 38 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]. [2024-01-27 14:49:22,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:49:22,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:49:22,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:49:22,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:49:22,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:22,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:49:22,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 14:49:22,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 14:49:22,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:49:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:49:22,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:49:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:49:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:49:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:49:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:49:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 14:49:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 14:49:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:49:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:49:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:49:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:49:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:49:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:49:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:49:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:49:22,628 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:49:22,836 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:49:22,838 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:49:23,151 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:49:23,158 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:49:23,318 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:49:23,329 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:49:23,330 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:23 BoogieIcfgContainer [2024-01-27 14:49:23,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:49:23,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:49:23,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:49:23,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:49:23,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:49:21" (1/4) ... [2024-01-27 14:49:23,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22789731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:23, skipping insertion in model container [2024-01-27 14:49:23,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:21" (2/4) ... [2024-01-27 14:49:23,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22789731 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:23, skipping insertion in model container [2024-01-27 14:49:23,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22" (3/4) ... [2024-01-27 14:49:23,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22789731 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:23, skipping insertion in model container [2024-01-27 14:49:23,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:23" (4/4) ... [2024-01-27 14:49:23,350 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2024-01-27 14:49:23,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:49:23,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-01-27 14:49:23,378 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:49:23,448 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:49:23,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 65 transitions, 134 flow [2024-01-27 14:49:23,579 INFO L124 PetriNetUnfolderBase]: 2/64 cut-off events. [2024-01-27 14:49:23,579 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:23,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-01-27 14:49:23,582 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 65 transitions, 134 flow [2024-01-27 14:49:23,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 64 transitions, 131 flow [2024-01-27 14:49:23,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:49:23,618 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;@50f89b3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:49:23,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-01-27 14:49:23,621 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:49:23,621 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:49:23,621 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:23,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:23,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:49:23,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-01-27 14:49:23,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:23,630 INFO L85 PathProgramCache]: Analyzing trace with hash 8230, now seen corresponding path program 1 times [2024-01-27 14:49:23,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:23,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787937793] [2024-01-27 14:49:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:23,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:23,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787937793] [2024-01-27 14:49:23,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787937793] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:23,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:23,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:49:23,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611792192] [2024-01-27 14:49:23,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:23,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:23,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:23,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:23,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:24,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 65 [2024-01-27 14:49:24,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 64 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 65 [2024-01-27 14:49:24,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:24,366 INFO L124 PetriNetUnfolderBase]: 146/644 cut-off events. [2024-01-27 14:49:24,366 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:24,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 644 events. 146/644 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4177 event pairs, 69 based on Foata normal form. 67/614 useless extension candidates. Maximal degree in co-relation 1009. Up to 207 conditions per place. [2024-01-27 14:49:24,372 INFO L140 encePairwiseOnDemand]: 45/65 looper letters, 32 selfloop transitions, 8 changer transitions 0/71 dead transitions. [2024-01-27 14:49:24,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 71 transitions, 225 flow [2024-01-27 14:49:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:24,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:24,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-01-27 14:49:24,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7743589743589744 [2024-01-27 14:49:24,408 INFO L175 Difference]: Start difference. First operand has 66 places, 64 transitions, 131 flow. Second operand 3 states and 151 transitions. [2024-01-27 14:49:24,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 71 transitions, 225 flow [2024-01-27 14:49:24,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 71 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:49:24,416 INFO L231 Difference]: Finished difference. Result has 66 places, 64 transitions, 186 flow [2024-01-27 14:49:24,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=66, PETRI_TRANSITIONS=64} [2024-01-27 14:49:24,421 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2024-01-27 14:49:24,422 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 64 transitions, 186 flow [2024-01-27 14:49:24,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:24,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:49:24,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:49:24,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-01-27 14:49:24,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:24,436 INFO L85 PathProgramCache]: Analyzing trace with hash 245504420, now seen corresponding path program 1 times [2024-01-27 14:49:24,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:24,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364243832] [2024-01-27 14:49:24,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:24,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:24,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:24,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364243832] [2024-01-27 14:49:24,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364243832] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:24,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:24,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968677956] [2024-01-27 14:49:24,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:24,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:24,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:24,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:24,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:24,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 65 [2024-01-27 14:49:24,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 64 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 65 [2024-01-27 14:49:24,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:24,982 INFO L124 PetriNetUnfolderBase]: 115/551 cut-off events. [2024-01-27 14:49:24,983 INFO L125 PetriNetUnfolderBase]: For 160/162 co-relation queries the response was YES. [2024-01-27 14:49:24,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 551 events. 115/551 cut-off events. For 160/162 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3443 event pairs, 29 based on Foata normal form. 97/625 useless extension candidates. Maximal degree in co-relation 1023. Up to 238 conditions per place. [2024-01-27 14:49:24,987 INFO L140 encePairwiseOnDemand]: 55/65 looper letters, 30 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-01-27 14:49:24,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 256 flow [2024-01-27 14:49:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-01-27 14:49:24,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.676923076923077 [2024-01-27 14:49:24,993 INFO L175 Difference]: Start difference. First operand has 66 places, 64 transitions, 186 flow. Second operand 4 states and 176 transitions. [2024-01-27 14:49:24,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 256 flow [2024-01-27 14:49:24,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:24,998 INFO L231 Difference]: Finished difference. Result has 59 places, 56 transitions, 158 flow [2024-01-27 14:49:24,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=59, PETRI_TRANSITIONS=56} [2024-01-27 14:49:24,998 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -7 predicate places. [2024-01-27 14:49:24,999 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 56 transitions, 158 flow [2024-01-27 14:49:25,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:49:25,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-01-27 14:49:25,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,001 INFO L85 PathProgramCache]: Analyzing trace with hash 862801639, now seen corresponding path program 1 times [2024-01-27 14:49:25,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135420847] [2024-01-27 14:49:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:25,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135420847] [2024-01-27 14:49:25,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135420847] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:25,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673749660] [2024-01-27 14:49:25,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:25,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:25,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:25,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-01-27 14:49:25,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-01-27 14:49:25,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,329 INFO L124 PetriNetUnfolderBase]: 176/598 cut-off events. [2024-01-27 14:49:25,337 INFO L125 PetriNetUnfolderBase]: For 99/111 co-relation queries the response was YES. [2024-01-27 14:49:25,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 598 events. 176/598 cut-off events. For 99/111 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3449 event pairs, 59 based on Foata normal form. 5/568 useless extension candidates. Maximal degree in co-relation 1236. Up to 160 conditions per place. [2024-01-27 14:49:25,341 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 39 selfloop transitions, 16 changer transitions 4/76 dead transitions. [2024-01-27 14:49:25,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 76 transitions, 330 flow [2024-01-27 14:49:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:49:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:49:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 203 transitions. [2024-01-27 14:49:25,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6246153846153846 [2024-01-27 14:49:25,344 INFO L175 Difference]: Start difference. First operand has 59 places, 56 transitions, 158 flow. Second operand 5 states and 203 transitions. [2024-01-27 14:49:25,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 76 transitions, 330 flow [2024-01-27 14:49:25,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:25,347 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 191 flow [2024-01-27 14:49:25,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2024-01-27 14:49:25,364 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -9 predicate places. [2024-01-27 14:49:25,365 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 191 flow [2024-01-27 14:49:25,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:49:25,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-01-27 14:49:25,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1897876681, now seen corresponding path program 1 times [2024-01-27 14:49:25,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135074156] [2024-01-27 14:49:25,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:25,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135074156] [2024-01-27 14:49:25,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135074156] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:25,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478855314] [2024-01-27 14:49:25,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:25,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:25,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:25,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 65 [2024-01-27 14:49:25,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2024-01-27 14:49:25,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 65 [2024-01-27 14:49:25,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,526 INFO L124 PetriNetUnfolderBase]: 110/425 cut-off events. [2024-01-27 14:49:25,526 INFO L125 PetriNetUnfolderBase]: For 221/226 co-relation queries the response was YES. [2024-01-27 14:49:25,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 425 events. 110/425 cut-off events. For 221/226 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2323 event pairs, 75 based on Foata normal form. 36/448 useless extension candidates. Maximal degree in co-relation 923. Up to 212 conditions per place. [2024-01-27 14:49:25,529 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 33 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2024-01-27 14:49:25,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 261 flow [2024-01-27 14:49:25,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:25,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2024-01-27 14:49:25,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7487179487179487 [2024-01-27 14:49:25,530 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 191 flow. Second operand 3 states and 146 transitions. [2024-01-27 14:49:25,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 261 flow [2024-01-27 14:49:25,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 261 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:49:25,533 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 192 flow [2024-01-27 14:49:25,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2024-01-27 14:49:25,535 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -8 predicate places. [2024-01-27 14:49:25,535 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 192 flow [2024-01-27 14:49:25,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2024-01-27 14:49:25,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:49:25,536 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-01-27 14:49:25,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1842157956, now seen corresponding path program 1 times [2024-01-27 14:49:25,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776223606] [2024-01-27 14:49:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:25,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776223606] [2024-01-27 14:49:25,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776223606] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:25,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701454573] [2024-01-27 14:49:25,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:25,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:25,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:25,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 65 [2024-01-27 14:49:25,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 65 [2024-01-27 14:49:25,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,665 INFO L124 PetriNetUnfolderBase]: 28/162 cut-off events. [2024-01-27 14:49:25,666 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-01-27 14:49:25,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 162 events. 28/162 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 546 event pairs, 4 based on Foata normal form. 11/169 useless extension candidates. Maximal degree in co-relation 339. Up to 56 conditions per place. [2024-01-27 14:49:25,666 INFO L140 encePairwiseOnDemand]: 61/65 looper letters, 16 selfloop transitions, 4 changer transitions 10/53 dead transitions. [2024-01-27 14:49:25,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 237 flow [2024-01-27 14:49:25,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-01-27 14:49:25,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8358974358974359 [2024-01-27 14:49:25,668 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 192 flow. Second operand 3 states and 163 transitions. [2024-01-27 14:49:25,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 237 flow [2024-01-27 14:49:25,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 197 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-01-27 14:49:25,669 INFO L231 Difference]: Finished difference. Result has 51 places, 42 transitions, 111 flow [2024-01-27 14:49:25,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=51, PETRI_TRANSITIONS=42} [2024-01-27 14:49:25,670 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -15 predicate places. [2024-01-27 14:49:25,670 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 42 transitions, 111 flow [2024-01-27 14:49:25,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:49:25,670 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-01-27 14:49:25,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -695016466, now seen corresponding path program 1 times [2024-01-27 14:49:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610558780] [2024-01-27 14:49:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:25,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610558780] [2024-01-27 14:49:25,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610558780] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:25,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023890728] [2024-01-27 14:49:25,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:25,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:25,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:25,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 65 [2024-01-27 14:49:25,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 65 [2024-01-27 14:49:25,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,780 INFO L124 PetriNetUnfolderBase]: 12/69 cut-off events. [2024-01-27 14:49:25,780 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-01-27 14:49:25,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 69 events. 12/69 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 8 based on Foata normal form. 3/67 useless extension candidates. Maximal degree in co-relation 131. Up to 37 conditions per place. [2024-01-27 14:49:25,781 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 16 selfloop transitions, 2 changer transitions 1/32 dead transitions. [2024-01-27 14:49:25,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 126 flow [2024-01-27 14:49:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:25,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:25,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-01-27 14:49:25,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6820512820512821 [2024-01-27 14:49:25,782 INFO L175 Difference]: Start difference. First operand has 51 places, 42 transitions, 111 flow. Second operand 3 states and 133 transitions. [2024-01-27 14:49:25,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 126 flow [2024-01-27 14:49:25,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:25,783 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 80 flow [2024-01-27 14:49:25,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-01-27 14:49:25,784 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -27 predicate places. [2024-01-27 14:49:25,784 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 80 flow [2024-01-27 14:49:25,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:49:25,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2024-01-27 14:49:25,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,785 INFO L85 PathProgramCache]: Analyzing trace with hash -312648878, now seen corresponding path program 1 times [2024-01-27 14:49:25,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806303135] [2024-01-27 14:49:25,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:25,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806303135] [2024-01-27 14:49:25,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806303135] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:49:25,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036295876] [2024-01-27 14:49:25,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 14:49:25,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 14:49:25,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-27 14:49:25,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 65 [2024-01-27 14:49:25,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 65 [2024-01-27 14:49:25,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,948 INFO L124 PetriNetUnfolderBase]: 6/50 cut-off events. [2024-01-27 14:49:25,948 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-01-27 14:49:25,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 50 events. 6/50 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 2/51 useless extension candidates. Maximal degree in co-relation 79. Up to 19 conditions per place. [2024-01-27 14:49:25,949 INFO L140 encePairwiseOnDemand]: 62/65 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2024-01-27 14:49:25,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 94 flow [2024-01-27 14:49:25,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-01-27 14:49:25,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7269230769230769 [2024-01-27 14:49:25,950 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 80 flow. Second operand 4 states and 189 transitions. [2024-01-27 14:49:25,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 94 flow [2024-01-27 14:49:25,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 84 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 14:49:25,951 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-01-27 14:49:25,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-01-27 14:49:25,951 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -32 predicate places. [2024-01-27 14:49:25,951 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-01-27 14:49:25,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:25,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 36 remaining) [2024-01-27 14:49:25,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 36 remaining) [2024-01-27 14:49:25,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (33 of 36 remaining) [2024-01-27 14:49:25,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 36 remaining) [2024-01-27 14:49:25,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 36 remaining) [2024-01-27 14:49:25,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (30 of 36 remaining) [2024-01-27 14:49:25,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 36 remaining) [2024-01-27 14:49:25,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 36 remaining) [2024-01-27 14:49:25,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 36 remaining) [2024-01-27 14:49:25,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 36 remaining) [2024-01-27 14:49:25,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 36 remaining) [2024-01-27 14:49:25,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 36 remaining) [2024-01-27 14:49:25,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 36 remaining) [2024-01-27 14:49:25,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 36 remaining) [2024-01-27 14:49:25,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 36 remaining) [2024-01-27 14:49:25,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 36 remaining) [2024-01-27 14:49:25,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 36 remaining) [2024-01-27 14:49:25,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 36 remaining) [2024-01-27 14:49:25,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 36 remaining) [2024-01-27 14:49:25,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 36 remaining) [2024-01-27 14:49:25,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 36 remaining) [2024-01-27 14:49:25,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 36 remaining) [2024-01-27 14:49:25,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 36 remaining) [2024-01-27 14:49:25,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 36 remaining) [2024-01-27 14:49:25,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 36 remaining) [2024-01-27 14:49:25,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 36 remaining) [2024-01-27 14:49:25,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 36 remaining) [2024-01-27 14:49:25,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 36 remaining) [2024-01-27 14:49:25,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 36 remaining) [2024-01-27 14:49:25,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:49:25,960 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,964 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:49:25,965 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:49:25,968 INFO L503 ceAbstractionStarter]: Automizer considered 19 witness invariants [2024-01-27 14:49:25,968 INFO L504 ceAbstractionStarter]: WitnessConsidered=19 [2024-01-27 14:49:25,969 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:49:25 BasicIcfg [2024-01-27 14:49:25,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:49:25,970 INFO L158 Benchmark]: Toolchain (without parser) took 4136.98ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 103.4MB in the beginning and 119.1MB in the end (delta: -15.6MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,970 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:25,970 INFO L158 Benchmark]: Witness Parser took 8.35ms. Allocated memory is still 136.3MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:25,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.92ms. Allocated memory is still 136.3MB. Free memory was 103.4MB in the beginning and 80.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.02ms. Allocated memory is still 136.3MB. Free memory was 80.4MB in the beginning and 78.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,971 INFO L158 Benchmark]: Boogie Preprocessor took 75.03ms. Allocated memory is still 136.3MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,971 INFO L158 Benchmark]: RCFGBuilder took 839.69ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 83.0MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,971 INFO L158 Benchmark]: TraceAbstraction took 2636.05ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 82.9MB in the beginning and 119.1MB in the end (delta: -36.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 8.35ms. Allocated memory is still 136.3MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.92ms. Allocated memory is still 136.3MB. Free memory was 103.4MB in the beginning and 80.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.02ms. Allocated memory is still 136.3MB. Free memory was 80.4MB in the beginning and 78.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.03ms. Allocated memory is still 136.3MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 839.69ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 83.0MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2636.05ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 82.9MB in the beginning and 119.1MB in the end (delta: -36.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 685]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 36 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: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 385 IncrementalHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 36 mSDtfsCounter, 385 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 362 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 14:49:26,011 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 Result: TRUE