./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_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_01-priv_nr_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_01-priv_nr_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-3d25acf-m [2024-01-30 14:21:21,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:21:21,576 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:21:21,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:21:21,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:21:21,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:21:21,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:21:21,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:21:21,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:21:21,594 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:21:21,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:21:21,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:21:21,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:21:21,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:21:21,595 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:21:21,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:21:21,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:21:21,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:21:21,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:21:21,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:21:21,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:21:21,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:21:21,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:21:21,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:21:21,598 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:21:21,598 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:21:21,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:21:21,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:21:21,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:21:21,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:21:21,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:21:21,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:21:21,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:21,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:21:21,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:21:21,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:21:21,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:21:21,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:21:21,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:21:21,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:21:21,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:21:21,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:21:21,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:21:21,602 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:21:21,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:21:21,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:21:21,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:21:21,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:21:21,807 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:21:21,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2024-01-30 14:21:22,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:21:23,096 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:21:23,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2024-01-30 14:21:23,107 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b157fb7/6a241721397f4b03bbcb4bc60f92d9aa/FLAG3a8f66536 [2024-01-30 14:21:23,116 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b157fb7/6a241721397f4b03bbcb4bc60f92d9aa [2024-01-30 14:21:23,118 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:21:23,119 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:21:23,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_01-priv_nr_true.yml/witness.yml [2024-01-30 14:21:23,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:21:23,184 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:21:23,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:23,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:21:23,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:21:23,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:23" (1/2) ... [2024-01-30 14:21:23,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a938a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:23, skipping insertion in model container [2024-01-30 14:21:23,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:23" (1/2) ... [2024-01-30 14:21:23,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7b2b6b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:23, skipping insertion in model container [2024-01-30 14:21:23,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:23" (2/2) ... [2024-01-30 14:21:23,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a938a8b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23, skipping insertion in model container [2024-01-30 14:21:23,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:23" (2/2) ... [2024-01-30 14:21:23,191 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:21:23,219 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:21:23,220 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] glob1 == 6 [2024-01-30 14:21:23,220 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] ((glob1 == 5 || glob1 == 6) || ((((((-128 <= glob1 && -10 <= glob1) && glob1 <= 5) && glob1 <= 127) && glob1 % 15 == 5) && glob1 != 0) && (glob1 == -10 || glob1 == 5))) && ((glob1 == 5 || glob1 == 6) || ((((((-128 <= glob1 && -10 <= glob1) && glob1 <= 5) && glob1 <= 127) && glob1 % 15 == 5) && glob1 != 0) && (glob1 == -10 || glob1 == 5))) [2024-01-30 14:21:23,220 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 5 [2024-01-30 14:21:23,220 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] ((glob1 == -10) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:23,220 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 5 [2024-01-30 14:21:23,220 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (t == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:23,220 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] ((glob1 == 5) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:23,221 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] glob1 == 6 [2024-01-30 14:21:23,221 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (((((0LL - (long long )glob1) + (long long )t >= 0LL) && ((long long )glob1 - (long long )t >= 0LL)) && (glob1 == 5)) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:23,221 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] ((glob1 == 5) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:23,221 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] ((glob1 == -10) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:23,221 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-30 14:21:23,221 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:23,221 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] glob1 == 5 [2024-01-30 14:21:23,222 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 5 [2024-01-30 14:21:23,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:21:23,390 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_01-priv_nr_true.i[1084,1097] [2024-01-30 14:21:23,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:23,518 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:21:23,527 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_01-priv_nr_true.i[1084,1097] [2024-01-30 14:21:23,527 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 [2024-01-30 14:21:23,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:23,622 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:21:23,622 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23 WrapperNode [2024-01-30 14:21:23,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:23,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:23,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:21:23,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:21:23,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,658 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 103 [2024-01-30 14:21:23,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:23,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:21:23,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:21:23,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:21:23,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,679 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-30 14:21:23,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:21:23,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:21:23,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:21:23,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:21:23,693 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (1/1) ... [2024-01-30 14:21:23,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:23,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:21:23,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-30 14:21:23,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:21:23,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:21:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:21:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:21:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:21:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:21:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:21:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-30 14:21:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:21:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:21:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:21:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:21:23,754 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:21:23,878 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:21:23,879 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:21:24,058 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:21:24,058 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:21:24,147 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:21:24,148 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:21:24,149 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:24 BoogieIcfgContainer [2024-01-30 14:21:24,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:21:24,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:21:24,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:21:24,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:21:24,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:21:23" (1/4) ... [2024-01-30 14:21:24,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f38fea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:24, skipping insertion in model container [2024-01-30 14:21:24,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:23" (2/4) ... [2024-01-30 14:21:24,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f38fea0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:24, skipping insertion in model container [2024-01-30 14:21:24,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:23" (3/4) ... [2024-01-30 14:21:24,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f38fea0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:24, skipping insertion in model container [2024-01-30 14:21:24,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:24" (4/4) ... [2024-01-30 14:21:24,161 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2024-01-30 14:21:24,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:21:24,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-01-30 14:21:24,174 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:21:24,234 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-30 14:21:24,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 63 transitions, 133 flow [2024-01-30 14:21:24,314 INFO L124 PetriNetUnfolderBase]: 4/62 cut-off events. [2024-01-30 14:21:24,314 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:21:24,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 4/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-01-30 14:21:24,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 63 transitions, 133 flow [2024-01-30 14:21:24,321 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 123 flow [2024-01-30 14:21:24,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:21:24,340 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;@1de7c364, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:21:24,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-01-30 14:21:24,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:21:24,343 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:21:24,343 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:24,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:24,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:21:24,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:24,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:24,351 INFO L85 PathProgramCache]: Analyzing trace with hash 9604, now seen corresponding path program 1 times [2024-01-30 14:21:24,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:24,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960529367] [2024-01-30 14:21:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:24,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:24,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:24,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960529367] [2024-01-30 14:21:24,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960529367] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:24,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:24,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:21:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721835762] [2024-01-30 14:21:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:24,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:24,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:24,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:24,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:24,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2024-01-30 14:21:24,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:24,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:24,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2024-01-30 14:21:24,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:24,685 INFO L124 PetriNetUnfolderBase]: 117/474 cut-off events. [2024-01-30 14:21:24,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:24,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 474 events. 117/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2783 event pairs, 64 based on Foata normal form. 72/509 useless extension candidates. Maximal degree in co-relation 759. Up to 189 conditions per place. [2024-01-30 14:21:24,689 INFO L140 encePairwiseOnDemand]: 44/63 looper letters, 36 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2024-01-30 14:21:24,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 71 transitions, 235 flow [2024-01-30 14:21:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-01-30 14:21:24,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2024-01-30 14:21:24,699 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 123 flow. Second operand 3 states and 141 transitions. [2024-01-30 14:21:24,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 71 transitions, 235 flow [2024-01-30 14:21:24,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:24,703 INFO L231 Difference]: Finished difference. Result has 61 places, 60 transitions, 178 flow [2024-01-30 14:21:24,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=61, PETRI_TRANSITIONS=60} [2024-01-30 14:21:24,707 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2024-01-30 14:21:24,707 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 60 transitions, 178 flow [2024-01-30 14:21:24,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:24,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:24,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:21:24,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:21:24,708 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:24,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash 9238674, now seen corresponding path program 1 times [2024-01-30 14:21:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:24,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945185569] [2024-01-30 14:21:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945185569] [2024-01-30 14:21:24,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945185569] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:24,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:24,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:24,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039344577] [2024-01-30 14:21:24,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:24,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:24,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:24,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:24,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:24,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-01-30 14:21:24,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:24,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:24,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-01-30 14:21:24,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:24,986 INFO L124 PetriNetUnfolderBase]: 135/483 cut-off events. [2024-01-30 14:21:24,987 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-01-30 14:21:24,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 483 events. 135/483 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2732 event pairs, 61 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 1015. Up to 179 conditions per place. [2024-01-30 14:21:24,990 INFO L140 encePairwiseOnDemand]: 48/63 looper letters, 47 selfloop transitions, 19 changer transitions 0/86 dead transitions. [2024-01-30 14:21:24,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 390 flow [2024-01-30 14:21:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:24,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-01-30 14:21:24,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5841269841269842 [2024-01-30 14:21:24,992 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 178 flow. Second operand 5 states and 184 transitions. [2024-01-30 14:21:24,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 390 flow [2024-01-30 14:21:24,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:24,995 INFO L231 Difference]: Finished difference. Result has 59 places, 62 transitions, 212 flow [2024-01-30 14:21:24,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=59, PETRI_TRANSITIONS=62} [2024-01-30 14:21:24,996 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2024-01-30 14:21:24,996 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 62 transitions, 212 flow [2024-01-30 14:21:24,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:24,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:24,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:24,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:21:24,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:24,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1931429911, now seen corresponding path program 1 times [2024-01-30 14:21:24,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:24,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887598777] [2024-01-30 14:21:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:24,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:25,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:25,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:25,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887598777] [2024-01-30 14:21:25,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887598777] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:25,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:25,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036715484] [2024-01-30 14:21:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:25,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:25,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:25,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 63 [2024-01-30 14:21:25,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:25,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 63 [2024-01-30 14:21:25,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:25,224 INFO L124 PetriNetUnfolderBase]: 104/465 cut-off events. [2024-01-30 14:21:25,224 INFO L125 PetriNetUnfolderBase]: For 118/119 co-relation queries the response was YES. [2024-01-30 14:21:25,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 465 events. 104/465 cut-off events. For 118/119 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2785 event pairs, 18 based on Foata normal form. 9/450 useless extension candidates. Maximal degree in co-relation 921. Up to 238 conditions per place. [2024-01-30 14:21:25,226 INFO L140 encePairwiseOnDemand]: 60/63 looper letters, 39 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-01-30 14:21:25,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 69 transitions, 322 flow [2024-01-30 14:21:25,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-01-30 14:21:25,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-01-30 14:21:25,237 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 212 flow. Second operand 4 states and 161 transitions. [2024-01-30 14:21:25,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 69 transitions, 322 flow [2024-01-30 14:21:25,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 322 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-30 14:21:25,239 INFO L231 Difference]: Finished difference. Result has 61 places, 61 transitions, 214 flow [2024-01-30 14:21:25,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2024-01-30 14:21:25,240 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2024-01-30 14:21:25,240 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 214 flow [2024-01-30 14:21:25,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:25,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:25,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:21:25,241 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:25,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:25,241 INFO L85 PathProgramCache]: Analyzing trace with hash 448716614, now seen corresponding path program 1 times [2024-01-30 14:21:25,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:25,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377184158] [2024-01-30 14:21:25,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:25,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:25,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:25,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:25,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377184158] [2024-01-30 14:21:25,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377184158] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:25,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:25,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:25,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167813545] [2024-01-30 14:21:25,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:25,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:25,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:25,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:25,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:25,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 63 [2024-01-30 14:21:25,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:25,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 63 [2024-01-30 14:21:25,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:25,476 INFO L124 PetriNetUnfolderBase]: 155/568 cut-off events. [2024-01-30 14:21:25,487 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-01-30 14:21:25,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 568 events. 155/568 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3421 event pairs, 18 based on Foata normal form. 7/552 useless extension candidates. Maximal degree in co-relation 1225. Up to 166 conditions per place. [2024-01-30 14:21:25,490 INFO L140 encePairwiseOnDemand]: 51/63 looper letters, 47 selfloop transitions, 20 changer transitions 1/87 dead transitions. [2024-01-30 14:21:25,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 87 transitions, 420 flow [2024-01-30 14:21:25,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:25,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:25,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2024-01-30 14:21:25,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2024-01-30 14:21:25,491 INFO L175 Difference]: Start difference. First operand has 61 places, 61 transitions, 214 flow. Second operand 4 states and 160 transitions. [2024-01-30 14:21:25,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 87 transitions, 420 flow [2024-01-30 14:21:25,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 87 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:25,494 INFO L231 Difference]: Finished difference. Result has 64 places, 67 transitions, 313 flow [2024-01-30 14:21:25,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=313, PETRI_PLACES=64, PETRI_TRANSITIONS=67} [2024-01-30 14:21:25,495 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2024-01-30 14:21:25,495 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 67 transitions, 313 flow [2024-01-30 14:21:25,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:25,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:25,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:21:25,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:25,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:25,505 INFO L85 PathProgramCache]: Analyzing trace with hash 437768577, now seen corresponding path program 1 times [2024-01-30 14:21:25,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:25,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830760819] [2024-01-30 14:21:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:25,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:25,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:25,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830760819] [2024-01-30 14:21:25,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830760819] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:25,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:25,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:25,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132543545] [2024-01-30 14:21:25,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:25,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:25,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:25,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:25,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:25,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 63 [2024-01-30 14:21:25,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 67 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:25,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 63 [2024-01-30 14:21:25,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:25,677 INFO L124 PetriNetUnfolderBase]: 116/424 cut-off events. [2024-01-30 14:21:25,677 INFO L125 PetriNetUnfolderBase]: For 376/381 co-relation queries the response was YES. [2024-01-30 14:21:25,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 424 events. 116/424 cut-off events. For 376/381 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2226 event pairs, 62 based on Foata normal form. 46/454 useless extension candidates. Maximal degree in co-relation 1085. Up to 207 conditions per place. [2024-01-30 14:21:25,679 INFO L140 encePairwiseOnDemand]: 51/63 looper letters, 36 selfloop transitions, 9 changer transitions 1/66 dead transitions. [2024-01-30 14:21:25,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 66 transitions, 346 flow [2024-01-30 14:21:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:25,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-01-30 14:21:25,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5912698412698413 [2024-01-30 14:21:25,681 INFO L175 Difference]: Start difference. First operand has 64 places, 67 transitions, 313 flow. Second operand 4 states and 149 transitions. [2024-01-30 14:21:25,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 66 transitions, 346 flow [2024-01-30 14:21:25,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 332 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:25,684 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 239 flow [2024-01-30 14:21:25,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-01-30 14:21:25,684 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 3 predicate places. [2024-01-30 14:21:25,685 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 239 flow [2024-01-30 14:21:25,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:25,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:25,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:21:25,685 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:25,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1025313484, now seen corresponding path program 1 times [2024-01-30 14:21:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:25,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869708063] [2024-01-30 14:21:25,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:25,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:25,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:25,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869708063] [2024-01-30 14:21:25,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869708063] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:25,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:25,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:25,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914449750] [2024-01-30 14:21:25,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:25,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:25,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:25,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:25,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:25,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 63 [2024-01-30 14:21:25,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:25,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 63 [2024-01-30 14:21:25,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:25,883 INFO L124 PetriNetUnfolderBase]: 153/483 cut-off events. [2024-01-30 14:21:25,883 INFO L125 PetriNetUnfolderBase]: For 504/506 co-relation queries the response was YES. [2024-01-30 14:21:25,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 483 events. 153/483 cut-off events. For 504/506 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2592 event pairs, 23 based on Foata normal form. 34/503 useless extension candidates. Maximal degree in co-relation 1302. Up to 136 conditions per place. [2024-01-30 14:21:25,886 INFO L140 encePairwiseOnDemand]: 49/63 looper letters, 56 selfloop transitions, 13 changer transitions 2/84 dead transitions. [2024-01-30 14:21:25,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 84 transitions, 457 flow [2024-01-30 14:21:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:25,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-01-30 14:21:25,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-01-30 14:21:25,887 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 239 flow. Second operand 5 states and 175 transitions. [2024-01-30 14:21:25,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 84 transitions, 457 flow [2024-01-30 14:21:25,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 84 transitions, 432 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:25,890 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 257 flow [2024-01-30 14:21:25,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=257, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-01-30 14:21:25,891 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 5 predicate places. [2024-01-30 14:21:25,891 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 257 flow [2024-01-30 14:21:25,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:25,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:25,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:21:25,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:25,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:25,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1778758191, now seen corresponding path program 1 times [2024-01-30 14:21:25,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:25,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004843012] [2024-01-30 14:21:25,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:25,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:25,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:25,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004843012] [2024-01-30 14:21:25,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004843012] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:25,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:25,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:25,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501961938] [2024-01-30 14:21:25,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:25,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:25,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:25,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 63 [2024-01-30 14:21:25,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:25,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 63 [2024-01-30 14:21:25,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:25,984 INFO L124 PetriNetUnfolderBase]: 118/393 cut-off events. [2024-01-30 14:21:25,984 INFO L125 PetriNetUnfolderBase]: For 617/626 co-relation queries the response was YES. [2024-01-30 14:21:25,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 393 events. 118/393 cut-off events. For 617/626 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1912 event pairs, 73 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 1069. Up to 219 conditions per place. [2024-01-30 14:21:25,986 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 36 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-01-30 14:21:25,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 370 flow [2024-01-30 14:21:25,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:25,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-01-30 14:21:25,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6507936507936508 [2024-01-30 14:21:25,987 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 257 flow. Second operand 3 states and 123 transitions. [2024-01-30 14:21:25,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 370 flow [2024-01-30 14:21:25,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 60 transitions, 340 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:25,989 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 233 flow [2024-01-30 14:21:25,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2024-01-30 14:21:25,990 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places. [2024-01-30 14:21:25,990 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 233 flow [2024-01-30 14:21:25,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:25,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:25,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:25,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:21:25,990 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:25,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:25,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1150823969, now seen corresponding path program 1 times [2024-01-30 14:21:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:25,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464995698] [2024-01-30 14:21:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:25,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:26,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:26,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464995698] [2024-01-30 14:21:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464995698] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:26,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:26,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:26,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459056976] [2024-01-30 14:21:26,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:26,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:26,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:26,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:26,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:26,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 63 [2024-01-30 14:21:26,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:26,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:26,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 63 [2024-01-30 14:21:26,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:26,110 INFO L124 PetriNetUnfolderBase]: 36/168 cut-off events. [2024-01-30 14:21:26,110 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-01-30 14:21:26,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 168 events. 36/168 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 533 event pairs, 7 based on Foata normal form. 14/179 useless extension candidates. Maximal degree in co-relation 420. Up to 86 conditions per place. [2024-01-30 14:21:26,111 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 25 selfloop transitions, 4 changer transitions 2/46 dead transitions. [2024-01-30 14:21:26,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 253 flow [2024-01-30 14:21:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-01-30 14:21:26,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-01-30 14:21:26,112 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 233 flow. Second operand 3 states and 129 transitions. [2024-01-30 14:21:26,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 253 flow [2024-01-30 14:21:26,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 197 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-01-30 14:21:26,114 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 128 flow [2024-01-30 14:21:26,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2024-01-30 14:21:26,114 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -10 predicate places. [2024-01-30 14:21:26,114 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 128 flow [2024-01-30 14:21:26,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:26,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:26,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:26,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-30 14:21:26,115 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:26,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash -10320463, now seen corresponding path program 1 times [2024-01-30 14:21:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:26,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365376283] [2024-01-30 14:21:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:26,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365376283] [2024-01-30 14:21:26,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365376283] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:26,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:26,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:26,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290450549] [2024-01-30 14:21:26,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:26,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:26,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:26,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:26,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:26,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2024-01-30 14:21:26,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:26,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:26,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2024-01-30 14:21:26,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:26,286 INFO L124 PetriNetUnfolderBase]: 40/154 cut-off events. [2024-01-30 14:21:26,287 INFO L125 PetriNetUnfolderBase]: For 60/62 co-relation queries the response was YES. [2024-01-30 14:21:26,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 154 events. 40/154 cut-off events. For 60/62 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 420 event pairs, 10 based on Foata normal form. 13/167 useless extension candidates. Maximal degree in co-relation 347. Up to 46 conditions per place. [2024-01-30 14:21:26,287 INFO L140 encePairwiseOnDemand]: 56/63 looper letters, 21 selfloop transitions, 2 changer transitions 28/56 dead transitions. [2024-01-30 14:21:26,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 264 flow [2024-01-30 14:21:26,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:26,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 179 transitions. [2024-01-30 14:21:26,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5682539682539682 [2024-01-30 14:21:26,288 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 128 flow. Second operand 5 states and 179 transitions. [2024-01-30 14:21:26,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 264 flow [2024-01-30 14:21:26,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:26,290 INFO L231 Difference]: Finished difference. Result has 48 places, 24 transitions, 74 flow [2024-01-30 14:21:26,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=48, PETRI_TRANSITIONS=24} [2024-01-30 14:21:26,290 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -12 predicate places. [2024-01-30 14:21:26,290 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 24 transitions, 74 flow [2024-01-30 14:21:26,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:26,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:26,291 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] [2024-01-30 14:21:26,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-30 14:21:26,291 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-30 14:21:26,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:26,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1045433403, now seen corresponding path program 1 times [2024-01-30 14:21:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:26,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642953894] [2024-01-30 14:21:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:26,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:26,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:26,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642953894] [2024-01-30 14:21:26,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642953894] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:26,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:26,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933186706] [2024-01-30 14:21:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:26,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:26,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 63 [2024-01-30 14:21:26,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 24 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:26,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:26,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 63 [2024-01-30 14:21:26,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:26,388 INFO L124 PetriNetUnfolderBase]: 20/83 cut-off events. [2024-01-30 14:21:26,389 INFO L125 PetriNetUnfolderBase]: For 51/53 co-relation queries the response was YES. [2024-01-30 14:21:26,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 83 events. 20/83 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 201 event pairs, 11 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 189. Up to 34 conditions per place. [2024-01-30 14:21:26,389 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-01-30 14:21:26,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 162 flow [2024-01-30 14:21:26,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:26,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-01-30 14:21:26,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503968253968254 [2024-01-30 14:21:26,390 INFO L175 Difference]: Start difference. First operand has 48 places, 24 transitions, 74 flow. Second operand 4 states and 127 transitions. [2024-01-30 14:21:26,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 162 flow [2024-01-30 14:21:26,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:26,391 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2024-01-30 14:21:26,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2024-01-30 14:21:26,391 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -27 predicate places. [2024-01-30 14:21:26,392 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2024-01-30 14:21:26,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:26,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 29 remaining) [2024-01-30 14:21:26,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (27 of 29 remaining) [2024-01-30 14:21:26,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (23 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 29 remaining) [2024-01-30 14:21:26,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (16 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (13 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 29 remaining) [2024-01-30 14:21:26,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 29 remaining) [2024-01-30 14:21:26,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 29 remaining) [2024-01-30 14:21:26,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 29 remaining) [2024-01-30 14:21:26,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 29 remaining) [2024-01-30 14:21:26,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 29 remaining) [2024-01-30 14:21:26,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 29 remaining) [2024-01-30 14:21:26,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 29 remaining) [2024-01-30 14:21:26,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (3 of 29 remaining) [2024-01-30 14:21:26,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 29 remaining) [2024-01-30 14:21:26,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 29 remaining) [2024-01-30 14:21:26,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 29 remaining) [2024-01-30 14:21:26,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-30 14:21:26,398 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:26,402 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:21:26,402 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:21:26,405 INFO L503 ceAbstractionStarter]: Automizer considered 14 witness invariants [2024-01-30 14:21:26,406 INFO L504 ceAbstractionStarter]: WitnessConsidered=14 [2024-01-30 14:21:26,406 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:21:26 BasicIcfg [2024-01-30 14:21:26,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:21:26,407 INFO L158 Benchmark]: Toolchain (without parser) took 3223.12ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 81.0MB in the beginning and 115.1MB in the end (delta: -34.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-01-30 14:21:26,407 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:26,407 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 157.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:26,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.99ms. Allocated memory is still 157.3MB. Free memory was 80.8MB in the beginning and 115.6MB in the end (delta: -34.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-30 14:21:26,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.64ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 113.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:26,408 INFO L158 Benchmark]: Boogie Preprocessor took 32.42ms. Allocated memory is still 157.3MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:26,408 INFO L158 Benchmark]: RCFGBuilder took 460.35ms. Allocated memory is still 157.3MB. Free memory was 110.8MB in the beginning and 80.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-30 14:21:26,408 INFO L158 Benchmark]: TraceAbstraction took 2252.75ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 79.9MB in the beginning and 115.1MB in the end (delta: -35.1MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:26,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 157.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.99ms. Allocated memory is still 157.3MB. Free memory was 80.8MB in the beginning and 115.6MB in the end (delta: -34.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.64ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 113.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.42ms. Allocated memory is still 157.3MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.35ms. Allocated memory is still 157.3MB. Free memory was 110.8MB in the beginning and 80.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2252.75ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 79.9MB in the beginning and 115.1MB in the end (delta: -35.1MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: 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: 698]: 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: 701]: 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: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: 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: 688]: 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: 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: 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: 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 - PositiveResult [Line: 693]: 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, 91 locations, 29 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: 2.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 597 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 963 IncrementalHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 65 mSDtfsCounter, 963 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=4, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-30 14:21:26,429 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