./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_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_52-refine-protected-loop2-small_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 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_52-refine-protected-loop2-small_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_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-cb09d65-m [2024-01-27 23:07:03,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:07:03,446 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:07:03,451 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:07:03,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:07:03,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:07:03,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:07:03,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:07:03,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:07:03,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:07:03,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:07:03,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:07:03,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:07:03,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:07:03,481 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:07:03,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:07:03,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:07:03,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:07:03,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:07:03,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:07:03,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:07:03,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:07:03,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:07:03,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:07:03,483 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:07:03,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:07:03,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:07:03,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:07:03,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:07:03,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:07:03,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:07:03,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:07:03,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:03,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:07:03,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:07:03,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:07:03,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:07:03,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:07:03,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:07:03,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:07:03,487 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:07:03,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:07:03,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:07:03,487 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:07:03,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:07:03,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:07:03,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:07:03,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:07:03,758 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:07:03,759 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-01-27 23:07:04,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:07:04,979 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:07:04,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-01-27 23:07:04,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a4a0f67/5e11e7d2262942d0b8294f26d508ae55/FLAG35e38d0f5 [2024-01-27 23:07:05,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a4a0f67/5e11e7d2262942d0b8294f26d508ae55 [2024-01-27 23:07:05,011 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:07:05,011 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:07:05,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_true.yml/witness.yml [2024-01-27 23:07:05,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:07:05,106 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:07:05,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:05,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:07:05,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:07:05,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:05" (1/2) ... [2024-01-27 23:07:05,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35351e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:05, skipping insertion in model container [2024-01-27 23:07:05,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:05" (1/2) ... [2024-01-27 23:07:05,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a3f8bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:05, skipping insertion in model container [2024-01-27 23:07:05,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:05" (2/2) ... [2024-01-27 23:07:05,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35351e5e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05, skipping insertion in model container [2024-01-27 23:07:05,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:05" (2/2) ... [2024-01-27 23:07:05,115 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:07:05,142 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:07:05,143 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 32767 [2024-01-27 23:07:05,144 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 999 [2024-01-27 23:07:05,144 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g % 999 == 0 [2024-01-27 23:07:05,144 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 0 || g == 999 [2024-01-27 23:07:05,144 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 23:07:05,145 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g [2024-01-27 23:07:05,145 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-27 23:07:05,145 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] (unsigned long )arg == 0UL [2024-01-27 23:07:05,145 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 0 [2024-01-27 23:07:05,145 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 1000 [2024-01-27 23:07:05,145 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 1000 [2024-01-27 23:07:05,145 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 23:07:05,146 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1000 [2024-01-27 23:07:05,146 INFO L98 nessWitnessExtractor]: Loop invariant at [L686-L696] (unsigned long )arg == 0UL [2024-01-27 23:07:05,146 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 23:07:05,146 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 23:07:05,146 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g == 999 [2024-01-27 23:07:05,146 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 23:07:05,146 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 1000 [2024-01-27 23:07:05,147 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L692] (unsigned long )arg == 0UL [2024-01-27 23:07:05,147 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L692] g == 1000 [2024-01-27 23:07:05,184 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:07:05,332 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_52-refine-protected-loop2-small_true.i[1105,1118] [2024-01-27 23:07:05,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:05,477 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:07:05,487 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_52-refine-protected-loop2-small_true.i[1105,1118] [2024-01-27 23:07:05,487 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 23:07:05,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:05,607 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:07:05,607 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05 WrapperNode [2024-01-27 23:07:05,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:05,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:05,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:07:05,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:07:05,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,638 INFO L138 Inliner]: procedures = 163, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-01-27 23:07:05,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:05,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:07:05,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:07:05,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:07:05,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,659 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-27 23:07:05,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:07:05,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:07:05,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:07:05,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:07:05,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (1/1) ... [2024-01-27 23:07:05,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:05,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:07:05,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 23:07:05,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 23:07:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-01-27 23:07:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-01-27 23:07:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:07:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:07:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:07:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:07:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 23:07:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:07:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:07:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:07:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:07:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:07:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:07:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:07:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 23:07:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:07:05,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:07:05,751 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:07:05,915 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:07:05,916 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:07:06,134 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:07:06,137 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:07:06,236 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:07:06,236 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-27 23:07:06,237 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:06 BoogieIcfgContainer [2024-01-27 23:07:06,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:07:06,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:07:06,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:07:06,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:07:06,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:07:05" (1/4) ... [2024-01-27 23:07:06,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:07:06, skipping insertion in model container [2024-01-27 23:07:06,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:05" (2/4) ... [2024-01-27 23:07:06,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467818b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:06, skipping insertion in model container [2024-01-27 23:07:06,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:05" (3/4) ... [2024-01-27 23:07:06,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467818b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:06, skipping insertion in model container [2024-01-27 23:07:06,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:06" (4/4) ... [2024-01-27 23:07:06,243 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2024-01-27 23:07:06,260 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:07:06,261 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-01-27 23:07:06,261 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:07:06,316 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 23:07:06,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 128 flow [2024-01-27 23:07:06,372 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-01-27 23:07:06,373 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:06,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-01-27 23:07:06,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 62 transitions, 128 flow [2024-01-27 23:07:06,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 60 transitions, 123 flow [2024-01-27 23:07:06,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:07:06,402 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;@6558d4cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:07:06,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-27 23:07:06,408 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:07:06,408 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:07:06,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:06,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:06,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:07:06,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:07:06,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:06,414 INFO L85 PathProgramCache]: Analyzing trace with hash 8050, now seen corresponding path program 1 times [2024-01-27 23:07:06,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:06,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570860538] [2024-01-27 23:07:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:06,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:06,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570860538] [2024-01-27 23:07:06,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570860538] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:06,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:06,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:06,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405098605] [2024-01-27 23:07:06,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:06,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:06,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:06,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 62 [2024-01-27 23:07:06,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:06,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:06,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 62 [2024-01-27 23:07:06,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:06,783 INFO L124 PetriNetUnfolderBase]: 22/141 cut-off events. [2024-01-27 23:07:06,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:06,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 141 events. 22/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 285 event pairs, 1 based on Foata normal form. 6/124 useless extension candidates. Maximal degree in co-relation 197. Up to 56 conditions per place. [2024-01-27 23:07:06,788 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 23 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2024-01-27 23:07:06,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 175 flow [2024-01-27 23:07:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-01-27 23:07:06,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7688172043010753 [2024-01-27 23:07:06,803 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 123 flow. Second operand 3 states and 143 transitions. [2024-01-27 23:07:06,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 175 flow [2024-01-27 23:07:06,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:07:06,811 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 138 flow [2024-01-27 23:07:06,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-01-27 23:07:06,816 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-01-27 23:07:06,816 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 138 flow [2024-01-27 23:07:06,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:06,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:06,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:07:06,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:07:06,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:07:06,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash 240154341, now seen corresponding path program 1 times [2024-01-27 23:07:06,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:06,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625881192] [2024-01-27 23:07:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:07,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:07,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:07,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625881192] [2024-01-27 23:07:07,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625881192] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:07,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:07,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:07,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552601462] [2024-01-27 23:07:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:07,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:07,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:07,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:07,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:07,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 62 [2024-01-27 23:07:07,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:07,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 62 [2024-01-27 23:07:07,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:07,202 INFO L124 PetriNetUnfolderBase]: 13/121 cut-off events. [2024-01-27 23:07:07,202 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 23:07:07,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 121 events. 13/121 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 208 event pairs, 0 based on Foata normal form. 20/129 useless extension candidates. Maximal degree in co-relation 166. Up to 31 conditions per place. [2024-01-27 23:07:07,203 INFO L140 encePairwiseOnDemand]: 50/62 looper letters, 13 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-27 23:07:07,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 50 transitions, 150 flow [2024-01-27 23:07:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:07,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:07,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions. [2024-01-27 23:07:07,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6935483870967742 [2024-01-27 23:07:07,211 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 138 flow. Second operand 4 states and 172 transitions. [2024-01-27 23:07:07,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 50 transitions, 150 flow [2024-01-27 23:07:07,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:07:07,213 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 120 flow [2024-01-27 23:07:07,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2024-01-27 23:07:07,214 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -7 predicate places. [2024-01-27 23:07:07,215 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 120 flow [2024-01-27 23:07:07,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:07,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:07,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:07:07,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:07:07,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:07,216 INFO L85 PathProgramCache]: Analyzing trace with hash 478245795, now seen corresponding path program 1 times [2024-01-27 23:07:07,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:07,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677990009] [2024-01-27 23:07:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:07,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:07,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677990009] [2024-01-27 23:07:07,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677990009] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:07,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:07,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:07:07,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930203024] [2024-01-27 23:07:07,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:07,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:07,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:07,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:07,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:07,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 62 [2024-01-27 23:07:07,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:07,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 62 [2024-01-27 23:07:07,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:07,340 INFO L124 PetriNetUnfolderBase]: 23/118 cut-off events. [2024-01-27 23:07:07,341 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 23:07:07,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 118 events. 23/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 157 event pairs, 15 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 196. Up to 50 conditions per place. [2024-01-27 23:07:07,343 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 20 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-01-27 23:07:07,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 160 flow [2024-01-27 23:07:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2024-01-27 23:07:07,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7043010752688172 [2024-01-27 23:07:07,349 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 120 flow. Second operand 3 states and 131 transitions. [2024-01-27 23:07:07,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 160 flow [2024-01-27 23:07:07,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 157 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:07,351 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 115 flow [2024-01-27 23:07:07,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2024-01-27 23:07:07,353 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -10 predicate places. [2024-01-27 23:07:07,353 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 115 flow [2024-01-27 23:07:07,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:07,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:07,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:07:07,355 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:07:07,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:07,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1014263892, now seen corresponding path program 1 times [2024-01-27 23:07:07,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:07,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679443487] [2024-01-27 23:07:07,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:07,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:07,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:07,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679443487] [2024-01-27 23:07:07,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679443487] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:07,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:07,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 23:07:07,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600589170] [2024-01-27 23:07:07,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:07,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:07,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:07,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:07,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:07,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 62 [2024-01-27 23:07:07,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:07,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 62 [2024-01-27 23:07:07,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:07,561 INFO L124 PetriNetUnfolderBase]: 22/109 cut-off events. [2024-01-27 23:07:07,561 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-01-27 23:07:07,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 109 events. 22/109 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 131 event pairs, 2 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 190. Up to 50 conditions per place. [2024-01-27 23:07:07,563 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 22 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2024-01-27 23:07:07,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 171 flow [2024-01-27 23:07:07,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2024-01-27 23:07:07,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096 [2024-01-27 23:07:07,566 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 115 flow. Second operand 4 states and 168 transitions. [2024-01-27 23:07:07,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 171 flow [2024-01-27 23:07:07,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:07,568 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 115 flow [2024-01-27 23:07:07,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-01-27 23:07:07,570 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -11 predicate places. [2024-01-27 23:07:07,570 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 115 flow [2024-01-27 23:07:07,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:07,571 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] [2024-01-27 23:07:07,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:07:07,571 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:07:07,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:07,572 INFO L85 PathProgramCache]: Analyzing trace with hash -213755017, now seen corresponding path program 1 times [2024-01-27 23:07:07,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:07,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426294472] [2024-01-27 23:07:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:07,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:07,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:07,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426294472] [2024-01-27 23:07:07,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426294472] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:07,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:07,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:07,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336346098] [2024-01-27 23:07:07,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:07,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:07,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:07,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:07,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:07,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 62 [2024-01-27 23:07:07,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:07,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 62 [2024-01-27 23:07:07,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:07,719 INFO L124 PetriNetUnfolderBase]: 21/100 cut-off events. [2024-01-27 23:07:07,720 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-01-27 23:07:07,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 100 events. 21/100 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 92 event pairs, 4 based on Foata normal form. 10/108 useless extension candidates. Maximal degree in co-relation 172. Up to 27 conditions per place. [2024-01-27 23:07:07,722 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2024-01-27 23:07:07,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 157 flow [2024-01-27 23:07:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 156 transitions. [2024-01-27 23:07:07,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2024-01-27 23:07:07,734 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 115 flow. Second operand 4 states and 156 transitions. [2024-01-27 23:07:07,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 157 flow [2024-01-27 23:07:07,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 147 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 23:07:07,737 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-01-27 23:07:07,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-01-27 23:07:07,738 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2024-01-27 23:07:07,738 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-01-27 23:07:07,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:07,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-27 23:07:07,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 42 remaining) [2024-01-27 23:07:07,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-27 23:07:07,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-27 23:07:07,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-27 23:07:07,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-27 23:07:07,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-27 23:07:07,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-27 23:07:07,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-27 23:07:07,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-27 23:07:07,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-27 23:07:07,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-27 23:07:07,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONERROR_FUNCTION (29 of 42 remaining) [2024-01-27 23:07:07,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr11ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-27 23:07:07,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr12ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-27 23:07:07,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr13ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-27 23:07:07,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-27 23:07:07,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr14ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-27 23:07:07,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr16ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-27 23:07:07,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr17ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-27 23:07:07,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr18ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-27 23:07:07,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr19ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-27 23:07:07,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-27 23:07:07,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-27 23:07:07,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-27 23:07:07,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 42 remaining) [2024-01-27 23:07:07,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 42 remaining) [2024-01-27 23:07:07,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 42 remaining) [2024-01-27 23:07:07,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 42 remaining) [2024-01-27 23:07:07,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-27 23:07:07,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-27 23:07:07,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-27 23:07:07,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONERROR_FUNCTION (9 of 42 remaining) [2024-01-27 23:07:07,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr11ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-27 23:07:07,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr12ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-27 23:07:07,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr13ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-27 23:07:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-27 23:07:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr14ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-27 23:07:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr16ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-27 23:07:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr17ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-27 23:07:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr18ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-27 23:07:07,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr19ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-27 23:07:07,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:07:07,753 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-27 23:07:07,758 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:07:07,758 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:07:07,761 INFO L503 ceAbstractionStarter]: Automizer considered 20 witness invariants [2024-01-27 23:07:07,761 INFO L504 ceAbstractionStarter]: WitnessConsidered=20 [2024-01-27 23:07:07,763 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:07:07 BasicIcfg [2024-01-27 23:07:07,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:07:07,764 INFO L158 Benchmark]: Toolchain (without parser) took 2657.85ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 66.8MB in the beginning and 173.1MB in the end (delta: -106.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-01-27 23:07:07,767 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 146.8MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:07,768 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 146.8MB. Free memory was 70.0MB in the beginning and 69.6MB in the end (delta: 356.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:07,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.95ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 110.0MB in the end (delta: -43.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-01-27 23:07:07,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.89ms. Allocated memory is still 146.8MB. Free memory was 110.0MB in the beginning and 108.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:07,772 INFO L158 Benchmark]: Boogie Preprocessor took 29.55ms. Allocated memory is still 146.8MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:07,772 INFO L158 Benchmark]: RCFGBuilder took 567.61ms. Allocated memory is still 146.8MB. Free memory was 105.9MB in the beginning and 92.7MB in the end (delta: 13.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-01-27 23:07:07,772 INFO L158 Benchmark]: TraceAbstraction took 1525.12ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 91.9MB in the beginning and 173.1MB in the end (delta: -81.2MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2024-01-27 23:07:07,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 146.8MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 146.8MB. Free memory was 70.0MB in the beginning and 69.6MB in the end (delta: 356.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.95ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 110.0MB in the end (delta: -43.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.89ms. Allocated memory is still 146.8MB. Free memory was 110.0MB in the beginning and 108.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.55ms. Allocated memory is still 146.8MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.61ms. Allocated memory is still 146.8MB. Free memory was 105.9MB in the beginning and 92.7MB in the end (delta: 13.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1525.12ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 91.9MB in the beginning and 173.1MB in the end (delta: -81.2MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 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: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: 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: 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: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 42 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 334 IncrementalHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 57 mSDtfsCounter, 334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 23:07:07,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE