./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_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_29-multiple-protecting2-vesal_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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_29-multiple-protecting2-vesal_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_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-59af5db-m [2024-02-02 09:17:36,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:17:36,338 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:17:36,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:17:36,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:17:36,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:17:36,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:17:36,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:17:36,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:17:36,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:17:36,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:17:36,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:17:36,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:17:36,384 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:17:36,384 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:17:36,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:17:36,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:17:36,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:17:36,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:17:36,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:17:36,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:17:36,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:17:36,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:17:36,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:17:36,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:17:36,388 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:17:36,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:17:36,388 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:17:36,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:17:36,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:17:36,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:17:36,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:17:36,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:36,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:17:36,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:17:36,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:17:36,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:17:36,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:17:36,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:17:36,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:17:36,392 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:17:36,393 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:17:36,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:17:36,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:17:36,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:17:36,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:17:36,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:17:36,681 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:17:36,681 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:17:36,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-02-02 09:17:37,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:17:38,060 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:17:38,061 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-02-02 09:17:38,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2b26582b/560bd1787ba246129e6150d3f9a7e5bd/FLAG6c8bb5671 [2024-02-02 09:17:38,095 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2b26582b/560bd1787ba246129e6150d3f9a7e5bd [2024-02-02 09:17:38,098 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:17:38,098 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:17:38,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml [2024-02-02 09:17:38,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:17:38,202 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:17:38,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:38,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:17:38,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:17:38,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:38" (1/2) ... [2024-02-02 09:17:38,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb371cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38, skipping insertion in model container [2024-02-02 09:17:38,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:38" (1/2) ... [2024-02-02 09:17:38,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69274177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38, skipping insertion in model container [2024-02-02 09:17:38,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:38" (2/2) ... [2024-02-02 09:17:38,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb371cb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38, skipping insertion in model container [2024-02-02 09:17:38,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:38" (2/2) ... [2024-02-02 09:17:38,213 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:17:38,256 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:17:38,259 INFO L101 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-02-02 09:17:38,259 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] ((0 <= g2) && (g2 <= 2147483646)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:38,259 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:38,259 INFO L101 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= g2 [2024-02-02 09:17:38,259 INFO L101 nessWitnessExtractor]: Location invariant before [L706-L706] 0 <= g2 [2024-02-02 09:17:38,260 INFO L101 nessWitnessExtractor]: Location invariant before [L19-L19] ((0 <= g2) && (0 <= g2)) && (0 <= g2) [2024-02-02 09:17:38,260 INFO L101 nessWitnessExtractor]: Location invariant before [L702-L702] 0 <= g2 [2024-02-02 09:17:38,261 INFO L101 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-02-02 09:17:38,261 INFO L101 nessWitnessExtractor]: Location invariant before [L703-L703] 0 <= g2 [2024-02-02 09:17:38,261 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:38,261 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (0 <= g2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:38,261 INFO L101 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= g2 [2024-02-02 09:17:38,261 INFO L101 nessWitnessExtractor]: Location invariant before [L707-L707] 0 <= g2 [2024-02-02 09:17:38,262 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] ((0 <= g2) && (g2 <= 2147483646)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:38,262 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (0 <= g2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:38,262 INFO L101 nessWitnessExtractor]: Location invariant before [L701-L701] 0 <= g2 [2024-02-02 09:17:38,262 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:38,262 INFO L101 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-02-02 09:17:38,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:17:38,486 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-02-02 09:17:38,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:38,657 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:17:38,669 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-02-02 09:17:38,670 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:17:38,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:38,775 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:17:38,776 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38 WrapperNode [2024-02-02 09:17:38,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:38,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:38,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:17:38,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:17:38,786 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 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,808 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 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,832 INFO L138 Inliner]: procedures = 163, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 96 [2024-02-02 09:17:38,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:38,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:17:38,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:17:38,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:17:38,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,864 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-02-02 09:17:38,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:17:38,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:17:38,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:17:38,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:17:38,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:38,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:17:38,907 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) [2024-02-02 09:17:38,916 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 [2024-02-02 09:17:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:17:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:17:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:17:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:17:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:17:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-02-02 09:17:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-02-02 09:17:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:17:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:17:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:17:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:17:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:17:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:17:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:17:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:17:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:17:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:17:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:17:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:17:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:17:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:17:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:17:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:17:38,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:17:38,952 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:17:39,100 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:17:39,102 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:17:39,421 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:17:39,421 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:17:39,550 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:17:39,550 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:17:39,551 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:39 BoogieIcfgContainer [2024-02-02 09:17:39,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:17:39,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:17:39,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:17:39,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:17:39,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:17:38" (1/4) ... [2024-02-02 09:17:39,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e65e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:39, skipping insertion in model container [2024-02-02 09:17:39,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:38" (2/4) ... [2024-02-02 09:17:39,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e65e3d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:17:39, skipping insertion in model container [2024-02-02 09:17:39,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:38" (3/4) ... [2024-02-02 09:17:39,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e65e3d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:17:39, skipping insertion in model container [2024-02-02 09:17:39,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:39" (4/4) ... [2024-02-02 09:17:39,563 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-02-02 09:17:39,578 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:17:39,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-02-02 09:17:39,579 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:17:39,634 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-02 09:17:39,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 84 transitions, 175 flow [2024-02-02 09:17:39,704 INFO L124 PetriNetUnfolderBase]: 3/83 cut-off events. [2024-02-02 09:17:39,705 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:17:39,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 83 events. 3/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 121 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2024-02-02 09:17:39,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 84 transitions, 175 flow [2024-02-02 09:17:39,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 81 transitions, 165 flow [2024-02-02 09:17:39,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:17:39,731 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;@706a4f2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:17:39,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-02-02 09:17:39,734 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:17:39,734 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:17:39,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:39,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:39,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:17:39,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:39,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:39,740 INFO L85 PathProgramCache]: Analyzing trace with hash 11217, now seen corresponding path program 1 times [2024-02-02 09:17:39,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:39,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072790745] [2024-02-02 09:17:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:39,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:39,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:39,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072790745] [2024-02-02 09:17:39,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072790745] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:39,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:39,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:17:39,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100896204] [2024-02-02 09:17:39,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:39,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:39,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:39,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:40,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 84 [2024-02-02 09:17:40,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-02-02 09:17:40,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 84 [2024-02-02 09:17:40,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,315 INFO L124 PetriNetUnfolderBase]: 232/782 cut-off events. [2024-02-02 09:17:40,316 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:40,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 782 events. 232/782 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4719 event pairs, 88 based on Foata normal form. 48/746 useless extension candidates. Maximal degree in co-relation 1277. Up to 417 conditions per place. [2024-02-02 09:17:40,324 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 51 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-02-02 09:17:40,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 93 transitions, 295 flow [2024-02-02 09:17:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:40,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2024-02-02 09:17:40,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.753968253968254 [2024-02-02 09:17:40,337 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 165 flow. Second operand 3 states and 190 transitions. [2024-02-02 09:17:40,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 93 transitions, 295 flow [2024-02-02 09:17:40,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 93 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:17:40,343 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 176 flow [2024-02-02 09:17:40,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-02-02 09:17:40,350 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 1 predicate places. [2024-02-02 09:17:40,350 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 176 flow [2024-02-02 09:17:40,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-02-02 09:17:40,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:40,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:17:40,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:17:40,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:40,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 334590622, now seen corresponding path program 1 times [2024-02-02 09:17:40,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:40,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381103652] [2024-02-02 09:17:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:40,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:40,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381103652] [2024-02-02 09:17:40,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381103652] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:40,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653031612] [2024-02-02 09:17:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:40,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:40,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:40,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-02-02 09:17:40,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-02-02 09:17:40,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-02-02 09:17:40,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,823 INFO L124 PetriNetUnfolderBase]: 160/665 cut-off events. [2024-02-02 09:17:40,824 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-02-02 09:17:40,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 665 events. 160/665 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3900 event pairs, 126 based on Foata normal form. 17/631 useless extension candidates. Maximal degree in co-relation 1091. Up to 330 conditions per place. [2024-02-02 09:17:40,833 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 43 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-02-02 09:17:40,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 91 transitions, 294 flow [2024-02-02 09:17:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2024-02-02 09:17:40,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2024-02-02 09:17:40,839 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 176 flow. Second operand 4 states and 239 transitions. [2024-02-02 09:17:40,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 91 transitions, 294 flow [2024-02-02 09:17:40,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 91 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:40,843 INFO L231 Difference]: Finished difference. Result has 82 places, 75 transitions, 172 flow [2024-02-02 09:17:40,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=82, PETRI_TRANSITIONS=75} [2024-02-02 09:17:40,844 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-02-02 09:17:40,844 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 75 transitions, 172 flow [2024-02-02 09:17:40,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-02-02 09:17:40,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:40,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:40,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:17:40,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:40,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:40,846 INFO L85 PathProgramCache]: Analyzing trace with hash -829476780, now seen corresponding path program 1 times [2024-02-02 09:17:40,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:40,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127029182] [2024-02-02 09:17:40,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:40,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:40,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127029182] [2024-02-02 09:17:40,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127029182] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:17:40,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569575222] [2024-02-02 09:17:40,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:40,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:41,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 84 [2024-02-02 09:17:41,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 75 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-02-02 09:17:41,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:41,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 84 [2024-02-02 09:17:41,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:41,237 INFO L124 PetriNetUnfolderBase]: 372/988 cut-off events. [2024-02-02 09:17:41,237 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-02-02 09:17:41,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1908 conditions, 988 events. 372/988 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5767 event pairs, 100 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 1895. Up to 605 conditions per place. [2024-02-02 09:17:41,244 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 73 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2024-02-02 09:17:41,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 105 transitions, 384 flow [2024-02-02 09:17:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-02-02 09:17:41,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2024-02-02 09:17:41,246 INFO L175 Difference]: Start difference. First operand has 82 places, 75 transitions, 172 flow. Second operand 4 states and 198 transitions. [2024-02-02 09:17:41,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 105 transitions, 384 flow [2024-02-02 09:17:41,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 105 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:41,250 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 171 flow [2024-02-02 09:17:41,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=171, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-02-02 09:17:41,251 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-02-02 09:17:41,252 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 171 flow [2024-02-02 09:17:41,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-02-02 09:17:41,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:41,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:41,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:17:41,253 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:41,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1130233598, now seen corresponding path program 1 times [2024-02-02 09:17:41,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:41,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17358792] [2024-02-02 09:17:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:41,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:41,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:41,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17358792] [2024-02-02 09:17:41,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17358792] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:41,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:41,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:41,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553791796] [2024-02-02 09:17:41,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:41,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:41,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:41,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:41,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 84 [2024-02-02 09:17:41,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-02-02 09:17:41,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:41,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 84 [2024-02-02 09:17:41,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:41,525 INFO L124 PetriNetUnfolderBase]: 350/931 cut-off events. [2024-02-02 09:17:41,526 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-02-02 09:17:41,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 931 events. 350/931 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5015 event pairs, 294 based on Foata normal form. 76/970 useless extension candidates. Maximal degree in co-relation 1721. Up to 626 conditions per place. [2024-02-02 09:17:41,530 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 49 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-02-02 09:17:41,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 78 transitions, 282 flow [2024-02-02 09:17:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:41,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2024-02-02 09:17:41,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-02-02 09:17:41,532 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 171 flow. Second operand 4 states and 180 transitions. [2024-02-02 09:17:41,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 78 transitions, 282 flow [2024-02-02 09:17:41,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 271 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:17:41,536 INFO L231 Difference]: Finished difference. Result has 71 places, 64 transitions, 145 flow [2024-02-02 09:17:41,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=145, PETRI_PLACES=71, PETRI_TRANSITIONS=64} [2024-02-02 09:17:41,538 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2024-02-02 09:17:41,538 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 64 transitions, 145 flow [2024-02-02 09:17:41,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-02-02 09:17:41,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:41,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:41,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:17:41,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:41,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1730891913, now seen corresponding path program 1 times [2024-02-02 09:17:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:41,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892034817] [2024-02-02 09:17:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:41,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:41,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:41,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892034817] [2024-02-02 09:17:41,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892034817] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:41,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:41,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:41,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932144202] [2024-02-02 09:17:41,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:41,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:41,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:41,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:41,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:41,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2024-02-02 09:17:41,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 64 transitions, 145 flow. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:41,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:41,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2024-02-02 09:17:41,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:41,881 INFO L124 PetriNetUnfolderBase]: 288/751 cut-off events. [2024-02-02 09:17:41,881 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-02-02 09:17:41,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 751 events. 288/751 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4070 event pairs, 16 based on Foata normal form. 0/715 useless extension candidates. Maximal degree in co-relation 1455. Up to 265 conditions per place. [2024-02-02 09:17:41,903 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 81 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-02-02 09:17:41,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 109 transitions, 429 flow [2024-02-02 09:17:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:41,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2024-02-02 09:17:41,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530952380952381 [2024-02-02 09:17:41,905 INFO L175 Difference]: Start difference. First operand has 71 places, 64 transitions, 145 flow. Second operand 5 states and 223 transitions. [2024-02-02 09:17:41,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 109 transitions, 429 flow [2024-02-02 09:17:41,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 109 transitions, 391 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:41,909 INFO L231 Difference]: Finished difference. Result has 69 places, 61 transitions, 133 flow [2024-02-02 09:17:41,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=133, PETRI_PLACES=69, PETRI_TRANSITIONS=61} [2024-02-02 09:17:41,912 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2024-02-02 09:17:41,912 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 61 transitions, 133 flow [2024-02-02 09:17:41,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:17:41,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:41,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:41,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:17:41,913 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:41,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:41,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1752087337, now seen corresponding path program 1 times [2024-02-02 09:17:41,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:41,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15211981] [2024-02-02 09:17:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:41,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:42,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15211981] [2024-02-02 09:17:42,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15211981] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:42,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:42,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:42,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454824429] [2024-02-02 09:17:42,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:42,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:42,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:42,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:42,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-02-02 09:17:42,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 61 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-02-02 09:17:42,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:42,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-02-02 09:17:42,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:42,207 INFO L124 PetriNetUnfolderBase]: 192/656 cut-off events. [2024-02-02 09:17:42,208 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-02-02 09:17:42,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 656 events. 192/656 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3680 event pairs, 42 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1114. Up to 244 conditions per place. [2024-02-02 09:17:42,211 INFO L140 encePairwiseOnDemand]: 74/84 looper letters, 48 selfloop transitions, 15 changer transitions 0/91 dead transitions. [2024-02-02 09:17:42,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 91 transitions, 323 flow [2024-02-02 09:17:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:42,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 255 transitions. [2024-02-02 09:17:42,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-02-02 09:17:42,213 INFO L175 Difference]: Start difference. First operand has 69 places, 61 transitions, 133 flow. Second operand 5 states and 255 transitions. [2024-02-02 09:17:42,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 91 transitions, 323 flow [2024-02-02 09:17:42,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 91 transitions, 311 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:17:42,215 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 209 flow [2024-02-02 09:17:42,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-02-02 09:17:42,215 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2024-02-02 09:17:42,216 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 209 flow [2024-02-02 09:17:42,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-02-02 09:17:42,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:42,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:42,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:17:42,216 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:42,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:42,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1435853000, now seen corresponding path program 1 times [2024-02-02 09:17:42,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:42,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323830116] [2024-02-02 09:17:42,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:42,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:42,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:42,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323830116] [2024-02-02 09:17:42,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323830116] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:42,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:42,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:42,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998881468] [2024-02-02 09:17:42,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:42,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-02 09:17:42,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:42,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-02 09:17:42,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-02-02 09:17:42,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2024-02-02 09:17:42,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-02-02 09:17:42,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:42,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2024-02-02 09:17:42,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:42,625 INFO L124 PetriNetUnfolderBase]: 267/721 cut-off events. [2024-02-02 09:17:42,626 INFO L125 PetriNetUnfolderBase]: For 290/301 co-relation queries the response was YES. [2024-02-02 09:17:42,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1562 conditions, 721 events. 267/721 cut-off events. For 290/301 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3852 event pairs, 20 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 1546. Up to 342 conditions per place. [2024-02-02 09:17:42,629 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 52 selfloop transitions, 5 changer transitions 21/99 dead transitions. [2024-02-02 09:17:42,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 453 flow [2024-02-02 09:17:42,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2024-02-02 09:17:42,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-02-02 09:17:42,631 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 209 flow. Second operand 5 states and 204 transitions. [2024-02-02 09:17:42,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 453 flow [2024-02-02 09:17:42,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 99 transitions, 453 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-02 09:17:42,634 INFO L231 Difference]: Finished difference. Result has 75 places, 56 transitions, 181 flow [2024-02-02 09:17:42,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=181, PETRI_PLACES=75, PETRI_TRANSITIONS=56} [2024-02-02 09:17:42,635 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -7 predicate places. [2024-02-02 09:17:42,635 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 56 transitions, 181 flow [2024-02-02 09:17:42,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-02-02 09:17:42,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:42,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:42,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:17:42,636 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:42,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:42,637 INFO L85 PathProgramCache]: Analyzing trace with hash -649343873, now seen corresponding path program 1 times [2024-02-02 09:17:42,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:42,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622350688] [2024-02-02 09:17:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:42,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:42,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:42,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622350688] [2024-02-02 09:17:42,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622350688] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:42,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:42,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:42,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497989102] [2024-02-02 09:17:42,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:42,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:42,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:42,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:42,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:42,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 84 [2024-02-02 09:17:42,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 56 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2024-02-02 09:17:42,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:42,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 84 [2024-02-02 09:17:42,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:42,891 INFO L124 PetriNetUnfolderBase]: 160/484 cut-off events. [2024-02-02 09:17:42,891 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-02-02 09:17:42,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 484 events. 160/484 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2408 event pairs, 52 based on Foata normal form. 21/496 useless extension candidates. Maximal degree in co-relation 1035. Up to 125 conditions per place. [2024-02-02 09:17:42,893 INFO L140 encePairwiseOnDemand]: 74/84 looper letters, 37 selfloop transitions, 12 changer transitions 12/80 dead transitions. [2024-02-02 09:17:42,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 80 transitions, 375 flow [2024-02-02 09:17:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-02 09:17:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-02 09:17:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 268 transitions. [2024-02-02 09:17:42,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317460317460317 [2024-02-02 09:17:42,895 INFO L175 Difference]: Start difference. First operand has 75 places, 56 transitions, 181 flow. Second operand 6 states and 268 transitions. [2024-02-02 09:17:42,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 80 transitions, 375 flow [2024-02-02 09:17:42,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 80 transitions, 346 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-02-02 09:17:42,900 INFO L231 Difference]: Finished difference. Result has 66 places, 53 transitions, 194 flow [2024-02-02 09:17:42,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=66, PETRI_TRANSITIONS=53} [2024-02-02 09:17:42,902 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2024-02-02 09:17:42,902 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 53 transitions, 194 flow [2024-02-02 09:17:42,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2024-02-02 09:17:42,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:42,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:42,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-02 09:17:42,903 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:42,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:42,903 INFO L85 PathProgramCache]: Analyzing trace with hash -274358887, now seen corresponding path program 1 times [2024-02-02 09:17:42,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:42,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179902914] [2024-02-02 09:17:42,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:42,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:43,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:43,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179902914] [2024-02-02 09:17:43,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179902914] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:43,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:43,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:43,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453716989] [2024-02-02 09:17:43,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:43,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:43,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:43,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:43,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:43,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 84 [2024-02-02 09:17:43,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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) [2024-02-02 09:17:43,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:43,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 84 [2024-02-02 09:17:43,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:43,079 INFO L124 PetriNetUnfolderBase]: 37/194 cut-off events. [2024-02-02 09:17:43,079 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-02-02 09:17:43,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 194 events. 37/194 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 691 event pairs, 16 based on Foata normal form. 21/206 useless extension candidates. Maximal degree in co-relation 378. Up to 65 conditions per place. [2024-02-02 09:17:43,080 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 20 selfloop transitions, 6 changer transitions 12/58 dead transitions. [2024-02-02 09:17:43,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 264 flow [2024-02-02 09:17:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:43,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-02-02 09:17:43,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2024-02-02 09:17:43,082 INFO L175 Difference]: Start difference. First operand has 66 places, 53 transitions, 194 flow. Second operand 4 states and 237 transitions. [2024-02-02 09:17:43,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 264 flow [2024-02-02 09:17:43,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 228 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-02-02 09:17:43,084 INFO L231 Difference]: Finished difference. Result has 61 places, 42 transitions, 140 flow [2024-02-02 09:17:43,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=61, PETRI_TRANSITIONS=42} [2024-02-02 09:17:43,086 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -21 predicate places. [2024-02-02 09:17:43,086 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 140 flow [2024-02-02 09:17:43,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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) [2024-02-02 09:17:43,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:43,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:43,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-02 09:17:43,087 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-02-02 09:17:43,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:43,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1170706806, now seen corresponding path program 1 times [2024-02-02 09:17:43,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:43,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659846748] [2024-02-02 09:17:43,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:43,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:43,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:43,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659846748] [2024-02-02 09:17:43,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659846748] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:43,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:43,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-02 09:17:43,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764482093] [2024-02-02 09:17:43,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:43,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-02 09:17:43,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:43,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-02 09:17:43,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-02 09:17:43,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 84 [2024-02-02 09:17:43,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2024-02-02 09:17:43,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:43,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 84 [2024-02-02 09:17:43,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:43,367 INFO L124 PetriNetUnfolderBase]: 15/103 cut-off events. [2024-02-02 09:17:43,367 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-02-02 09:17:43,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 103 events. 15/103 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 299 event pairs, 0 based on Foata normal form. 6/107 useless extension candidates. Maximal degree in co-relation 200. Up to 43 conditions per place. [2024-02-02 09:17:43,368 INFO L140 encePairwiseOnDemand]: 81/84 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2024-02-02 09:17:43,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 47 transitions, 222 flow [2024-02-02 09:17:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-02-02 09:17:43,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-02-02 09:17:43,370 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 140 flow. Second operand 4 states and 231 transitions. [2024-02-02 09:17:43,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 47 transitions, 222 flow [2024-02-02 09:17:43,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:43,371 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2024-02-02 09:17:43,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2024-02-02 09:17:43,372 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -34 predicate places. [2024-02-02 09:17:43,372 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2024-02-02 09:17:43,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2024-02-02 09:17:43,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 30 remaining) [2024-02-02 09:17:43,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 30 remaining) [2024-02-02 09:17:43,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 30 remaining) [2024-02-02 09:17:43,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 30 remaining) [2024-02-02 09:17:43,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 30 remaining) [2024-02-02 09:17:43,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 30 remaining) [2024-02-02 09:17:43,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 30 remaining) [2024-02-02 09:17:43,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 30 remaining) [2024-02-02 09:17:43,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 30 remaining) [2024-02-02 09:17:43,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 30 remaining) [2024-02-02 09:17:43,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 30 remaining) [2024-02-02 09:17:43,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (18 of 30 remaining) [2024-02-02 09:17:43,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 30 remaining) [2024-02-02 09:17:43,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (16 of 30 remaining) [2024-02-02 09:17:43,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 30 remaining) [2024-02-02 09:17:43,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 30 remaining) [2024-02-02 09:17:43,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 30 remaining) [2024-02-02 09:17:43,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (12 of 30 remaining) [2024-02-02 09:17:43,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 30 remaining) [2024-02-02 09:17:43,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 30 remaining) [2024-02-02 09:17:43,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 30 remaining) [2024-02-02 09:17:43,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 30 remaining) [2024-02-02 09:17:43,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 30 remaining) [2024-02-02 09:17:43,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 30 remaining) [2024-02-02 09:17:43,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 30 remaining) [2024-02-02 09:17:43,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 30 remaining) [2024-02-02 09:17:43,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 30 remaining) [2024-02-02 09:17:43,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 30 remaining) [2024-02-02 09:17:43,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 30 remaining) [2024-02-02 09:17:43,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 30 remaining) [2024-02-02 09:17:43,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-02 09:17:43,381 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:43,386 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:17:43,386 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:17:43,390 INFO L503 ceAbstractionStarter]: Automizer considered 17 witness invariants [2024-02-02 09:17:43,390 INFO L504 ceAbstractionStarter]: WitnessConsidered=17 [2024-02-02 09:17:43,391 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:17:43 BasicIcfg [2024-02-02 09:17:43,391 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:17:43,391 INFO L158 Benchmark]: Toolchain (without parser) took 5189.41ms. Allocated memory was 161.5MB in the beginning and 260.0MB in the end (delta: 98.6MB). Free memory was 102.7MB in the beginning and 187.8MB in the end (delta: -85.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-02-02 09:17:43,392 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 161.5MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:43,392 INFO L158 Benchmark]: Witness Parser took 0.47ms. Allocated memory is still 161.5MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:43,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.87ms. Allocated memory is still 161.5MB. Free memory was 102.2MB in the beginning and 78.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:43,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.08ms. Allocated memory is still 161.5MB. Free memory was 78.7MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:43,393 INFO L158 Benchmark]: Boogie Preprocessor took 46.13ms. Allocated memory is still 161.5MB. Free memory was 76.6MB in the beginning and 74.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:43,393 INFO L158 Benchmark]: RCFGBuilder took 671.64ms. Allocated memory is still 161.5MB. Free memory was 74.2MB in the beginning and 100.4MB in the end (delta: -26.3MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-02-02 09:17:43,393 INFO L158 Benchmark]: TraceAbstraction took 3836.78ms. Allocated memory was 161.5MB in the beginning and 260.0MB in the end (delta: 98.6MB). Free memory was 99.6MB in the beginning and 187.8MB in the end (delta: -88.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-02-02 09:17:43,395 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 161.5MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.47ms. Allocated memory is still 161.5MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.87ms. Allocated memory is still 161.5MB. Free memory was 102.2MB in the beginning and 78.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.08ms. Allocated memory is still 161.5MB. Free memory was 78.7MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.13ms. Allocated memory is still 161.5MB. Free memory was 76.6MB in the beginning and 74.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 671.64ms. Allocated memory is still 161.5MB. Free memory was 74.2MB in the beginning and 100.4MB in the end (delta: -26.3MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3836.78ms. Allocated memory was 161.5MB in the beginning and 260.0MB in the end (delta: 98.6MB). Free memory was 99.6MB in the beginning and 187.8MB in the end (delta: -88.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 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: 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 - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 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: 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: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 706]: 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: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: 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, 115 locations, 30 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: 3.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 969 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 708 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 153 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1441 IncrementalHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 153 mSolverCounterUnsat, 94 mSDtfsCounter, 1441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=6, InterpolantAutomatonStates: 44, 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, 1.1s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 887 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-02 09:17:43,420 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