./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c --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/bench-exp2x4.wvr.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/weaver/bench-exp2x4.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x4.wvr.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 23:07:39,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:07:39,629 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:07:39,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:07:39,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:07:39,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:07:39,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:07:39,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:07:39,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:07:39,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:07:39,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:07:39,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:07:39,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:07:39,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:07:39,667 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:07:39,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:07:39,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:07:39,668 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:07:39,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:07:39,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:07:39,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:07:39,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:07:39,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:07:39,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:07:39,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:07:39,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:07:39,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:07:39,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:07:39,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:07:39,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:07:39,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:07:39,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:07:39,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:39,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:07:39,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:07:39,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:07:39,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:07:39,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:07:39,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:07:39,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:07:39,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:07:39,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:07:39,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:07:39,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:07:39,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:07:39,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:07:39,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:07:39,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:07:39,860 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:07:39,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2024-01-27 23:07:40,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:07:41,041 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:07:41,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2024-01-27 23:07:41,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47f0e8c8/fd9fd356afd6475eb7eaff6f285d3c89/FLAGd633d9a85 [2024-01-27 23:07:41,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47f0e8c8/fd9fd356afd6475eb7eaff6f285d3c89 [2024-01-27 23:07:41,068 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:07:41,069 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:07:41,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x4.wvr.yml/witness.yml [2024-01-27 23:07:41,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:07:41,172 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:07:41,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:41,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:07:41,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:07:41,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:41" (1/2) ... [2024-01-27 23:07:41,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c40975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:41, skipping insertion in model container [2024-01-27 23:07:41,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:41" (1/2) ... [2024-01-27 23:07:41,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fdd9466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:41, skipping insertion in model container [2024-01-27 23:07:41,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:41" (2/2) ... [2024-01-27 23:07:41,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c40975 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41, skipping insertion in model container [2024-01-27 23:07:41,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:41" (2/2) ... [2024-01-27 23:07:41,180 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:07:41,194 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:07:41,196 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,197 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,197 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,197 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,197 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] x4 == 0U [2024-01-27 23:07:41,198 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] n == 0U [2024-01-27 23:07:41,200 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L41] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Loop invariant at [L56-L59] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Loop invariant at [L65-L68] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] n == 0U [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-27 23:07:41,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (0LL - (long long )x1) - (long long )x3 >= 0LL [2024-01-27 23:07:41,202 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (long long )x1 + (long long )x3 >= 0LL [2024-01-27 23:07:41,202 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (long long )x1 - (long long )x3 >= 0LL [2024-01-27 23:07:41,202 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x2 == 0U [2024-01-27 23:07:41,202 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x1 == 0U [2024-01-27 23:07:41,203 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x4 == 0U [2024-01-27 23:07:41,203 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x3 == 0U [2024-01-27 23:07:41,203 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] n == 0U [2024-01-27 23:07:41,203 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] x2 == 0U [2024-01-27 23:07:41,203 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] x4 == 0U [2024-01-27 23:07:41,203 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] x3 == 0U [2024-01-27 23:07:41,204 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] n == 0U [2024-01-27 23:07:41,204 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] n == 0U [2024-01-27 23:07:41,204 INFO L98 nessWitnessExtractor]: Loop invariant at [L47-L50] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,204 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] n == 0U [2024-01-27 23:07:41,204 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] x3 == 0U [2024-01-27 23:07:41,204 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] x4 == 0U [2024-01-27 23:07:41,204 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,224 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:07:41,389 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2361,2374] [2024-01-27 23:07:41,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:41,405 INFO L202 MainTranslator]: Completed pre-run 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 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 23:07:41,453 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2361,2374] [2024-01-27 23:07:41,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:41,465 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:07:41,465 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41 WrapperNode [2024-01-27 23:07:41,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:41,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:41,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:07:41,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:07:41,471 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,485 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,503 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-27 23:07:41,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:41,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:07:41,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:07:41,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:07:41,513 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,513 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,515 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,526 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-27 23:07:41,527 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,527 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,533 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,537 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,539 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,540 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:07:41,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:07:41,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:07:41,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:07:41,545 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 11:07:41" (1/1) ... [2024-01-27 23:07:41,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:41,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:07:41,567 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 23:07:41,588 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 23:07:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:07:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:07:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:07:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:07:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:07:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 23:07:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 23:07:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 23:07:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 23:07:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:07:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:07:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:07:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:07:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 23:07:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:07:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:07:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:07:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:07:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:07:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 23:07:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:07:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:07:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:07:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:07:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:07:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:07:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 23:07:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:07:41,604 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 23:07:41,689 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:07:41,691 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:07:41,974 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:07:41,974 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:07:42,089 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:07:42,090 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-27 23:07:42,090 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:42 BoogieIcfgContainer [2024-01-27 23:07:42,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:07:42,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:07:42,093 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:07:42,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:07:42,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:07:41" (1/4) ... [2024-01-27 23:07:42,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdd0e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:07:42, skipping insertion in model container [2024-01-27 23:07:42,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:41" (2/4) ... [2024-01-27 23:07:42,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdd0e8f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:42, skipping insertion in model container [2024-01-27 23:07:42,097 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 11:07:41" (3/4) ... [2024-01-27 23:07:42,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdd0e8f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:42, skipping insertion in model container [2024-01-27 23:07:42,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:42" (4/4) ... [2024-01-27 23:07:42,098 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2024-01-27 23:07:42,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:07:42,116 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2024-01-27 23:07:42,116 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:07:42,175 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-27 23:07:42,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 115 transitions, 258 flow [2024-01-27 23:07:42,251 INFO L124 PetriNetUnfolderBase]: 4/111 cut-off events. [2024-01-27 23:07:42,252 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 23:07:42,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 111 events. 4/111 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 261 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2024-01-27 23:07:42,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 115 transitions, 258 flow [2024-01-27 23:07:42,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 110 transitions, 244 flow [2024-01-27 23:07:42,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:07:42,278 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;@4f6ea935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:07:42,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2024-01-27 23:07:42,280 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:07:42,281 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:07:42,281 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:42,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:42,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:07:42,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:42,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:42,288 INFO L85 PathProgramCache]: Analyzing trace with hash 13165, now seen corresponding path program 1 times [2024-01-27 23:07:42,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:42,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67141423] [2024-01-27 23:07:42,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:42,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:42,545 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 23:07:42,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:42,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67141423] [2024-01-27 23:07:42,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67141423] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:42,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:42,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:42,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376300180] [2024-01-27 23:07:42,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:42,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:42,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:42,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:42,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 115 [2024-01-27 23:07:42,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 110 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-01-27 23:07:42,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:42,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 115 [2024-01-27 23:07:42,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:44,531 INFO L124 PetriNetUnfolderBase]: 16101/23688 cut-off events. [2024-01-27 23:07:44,532 INFO L125 PetriNetUnfolderBase]: For 828/828 co-relation queries the response was YES. [2024-01-27 23:07:44,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44724 conditions, 23688 events. 16101/23688 cut-off events. For 828/828 co-relation queries the response was YES. Maximal size of possible extension queue 1420. Compared 165403 event pairs, 11277 based on Foata normal form. 4/16588 useless extension candidates. Maximal degree in co-relation 39991. Up to 20163 conditions per place. [2024-01-27 23:07:44,735 INFO L140 encePairwiseOnDemand]: 107/115 looper letters, 41 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2024-01-27 23:07:44,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 104 transitions, 318 flow [2024-01-27 23:07:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2024-01-27 23:07:44,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7072463768115942 [2024-01-27 23:07:44,747 INFO L175 Difference]: Start difference. First operand has 119 places, 110 transitions, 244 flow. Second operand 3 states and 244 transitions. [2024-01-27 23:07:44,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 104 transitions, 318 flow [2024-01-27 23:07:44,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 104 transitions, 302 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-27 23:07:44,776 INFO L231 Difference]: Finished difference. Result has 107 places, 104 transitions, 220 flow [2024-01-27 23:07:44,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=107, PETRI_TRANSITIONS=104} [2024-01-27 23:07:44,780 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -12 predicate places. [2024-01-27 23:07:44,781 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 104 transitions, 220 flow [2024-01-27 23:07:44,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-01-27 23:07:44,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:44,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:07:44,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:07:44,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:44,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:44,783 INFO L85 PathProgramCache]: Analyzing trace with hash 408572, now seen corresponding path program 1 times [2024-01-27 23:07:44,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:44,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650822768] [2024-01-27 23:07:44,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:44,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:44,833 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 23:07:44,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650822768] [2024-01-27 23:07:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650822768] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:44,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:44,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:44,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33502063] [2024-01-27 23:07:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:44,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:44,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:44,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 115 [2024-01-27 23:07:44,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 104 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:44,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:44,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 115 [2024-01-27 23:07:44,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:45,591 INFO L124 PetriNetUnfolderBase]: 7378/11954 cut-off events. [2024-01-27 23:07:45,591 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-01-27 23:07:45,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21309 conditions, 11954 events. 7378/11954 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88794 event pairs, 4752 based on Foata normal form. 4/10363 useless extension candidates. Maximal degree in co-relation 21269. Up to 9192 conditions per place. [2024-01-27 23:07:45,667 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-27 23:07:45,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 288 flow [2024-01-27 23:07:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2024-01-27 23:07:45,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2024-01-27 23:07:45,670 INFO L175 Difference]: Start difference. First operand has 107 places, 104 transitions, 220 flow. Second operand 3 states and 255 transitions. [2024-01-27 23:07:45,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 288 flow [2024-01-27 23:07:45,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 284 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:45,672 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 212 flow [2024-01-27 23:07:45,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-01-27 23:07:45,673 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -16 predicate places. [2024-01-27 23:07:45,673 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 212 flow [2024-01-27 23:07:45,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:45,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:45,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 23:07:45,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:07:45,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:45,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:45,675 INFO L85 PathProgramCache]: Analyzing trace with hash 12666193, now seen corresponding path program 1 times [2024-01-27 23:07:45,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:45,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87949440] [2024-01-27 23:07:45,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:45,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:45,751 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 23:07:45,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87949440] [2024-01-27 23:07:45,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87949440] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:45,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:45,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591687441] [2024-01-27 23:07:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:45,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:45,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:45,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:45,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 115 [2024-01-27 23:07:45,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:45,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:45,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 115 [2024-01-27 23:07:45,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:46,607 INFO L124 PetriNetUnfolderBase]: 7378/11950 cut-off events. [2024-01-27 23:07:46,608 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-27 23:07:46,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21305 conditions, 11950 events. 7378/11950 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88676 event pairs, 4752 based on Foata normal form. 3/10361 useless extension candidates. Maximal degree in co-relation 21274. Up to 9191 conditions per place. [2024-01-27 23:07:46,682 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-01-27 23:07:46,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 280 flow [2024-01-27 23:07:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:46,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2024-01-27 23:07:46,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2024-01-27 23:07:46,686 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 212 flow. Second operand 3 states and 255 transitions. [2024-01-27 23:07:46,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 280 flow [2024-01-27 23:07:46,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:46,690 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 204 flow [2024-01-27 23:07:46,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-01-27 23:07:46,691 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -20 predicate places. [2024-01-27 23:07:46,691 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 204 flow [2024-01-27 23:07:46,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:46,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:46,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:07:46,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:07:46,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:46,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:46,693 INFO L85 PathProgramCache]: Analyzing trace with hash 392652408, now seen corresponding path program 1 times [2024-01-27 23:07:46,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:46,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405092720] [2024-01-27 23:07:46,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:46,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:46,768 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 23:07:46,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:46,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405092720] [2024-01-27 23:07:46,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405092720] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:46,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:46,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:46,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001823877] [2024-01-27 23:07:46,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:46,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:46,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:46,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:46,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 115 [2024-01-27 23:07:46,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 23:07:46,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:46,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 115 [2024-01-27 23:07:46,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:47,490 INFO L124 PetriNetUnfolderBase]: 7378/11948 cut-off events. [2024-01-27 23:07:47,490 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-27 23:07:47,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21303 conditions, 11948 events. 7378/11948 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88721 event pairs, 4752 based on Foata normal form. 1/10358 useless extension candidates. Maximal degree in co-relation 21271. Up to 9194 conditions per place. [2024-01-27 23:07:47,727 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2024-01-27 23:07:47,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 276 flow [2024-01-27 23:07:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-01-27 23:07:47,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7507246376811594 [2024-01-27 23:07:47,731 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 204 flow. Second operand 3 states and 259 transitions. [2024-01-27 23:07:47,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 276 flow [2024-01-27 23:07:47,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:47,735 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 200 flow [2024-01-27 23:07:47,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-01-27 23:07:47,742 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -22 predicate places. [2024-01-27 23:07:47,743 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 200 flow [2024-01-27 23:07:47,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 23:07:47,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:47,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 23:07:47,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:07:47,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:47,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:47,744 INFO L85 PathProgramCache]: Analyzing trace with hash -712676781, now seen corresponding path program 1 times [2024-01-27 23:07:47,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:47,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191471529] [2024-01-27 23:07:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:47,798 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 23:07:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:47,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191471529] [2024-01-27 23:07:47,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191471529] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:47,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:47,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:47,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581908181] [2024-01-27 23:07:47,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:47,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:47,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:47,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:47,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:47,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 115 [2024-01-27 23:07:47,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 23:07:47,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:47,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 115 [2024-01-27 23:07:47,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:48,476 INFO L124 PetriNetUnfolderBase]: 7378/11946 cut-off events. [2024-01-27 23:07:48,476 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-27 23:07:48,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21301 conditions, 11946 events. 7378/11946 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88769 event pairs, 4752 based on Foata normal form. 1/10357 useless extension candidates. Maximal degree in co-relation 21283. Up to 9193 conditions per place. [2024-01-27 23:07:48,530 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-01-27 23:07:48,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 92 transitions, 272 flow [2024-01-27 23:07:48,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:48,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-01-27 23:07:48,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7507246376811594 [2024-01-27 23:07:48,532 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 200 flow. Second operand 3 states and 259 transitions. [2024-01-27 23:07:48,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 92 transitions, 272 flow [2024-01-27 23:07:48,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 92 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:48,533 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 196 flow [2024-01-27 23:07:48,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-01-27 23:07:48,534 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -24 predicate places. [2024-01-27 23:07:48,534 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 196 flow [2024-01-27 23:07:48,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 23:07:48,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:48,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:48,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:07:48,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:48,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1330171356, now seen corresponding path program 1 times [2024-01-27 23:07:48,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:48,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138724745] [2024-01-27 23:07:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:48,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:48,585 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 23:07:48,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:48,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138724745] [2024-01-27 23:07:48,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138724745] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:48,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:48,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:48,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674788484] [2024-01-27 23:07:48,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:48,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:48,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:48,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:48,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:48,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 115 [2024-01-27 23:07:48,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 23:07:48,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:48,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 115 [2024-01-27 23:07:48,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:49,272 INFO L124 PetriNetUnfolderBase]: 7378/11945 cut-off events. [2024-01-27 23:07:49,272 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-27 23:07:49,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21305 conditions, 11945 events. 7378/11945 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88789 event pairs, 4752 based on Foata normal form. 0/10356 useless extension candidates. Maximal degree in co-relation 21279. Up to 9192 conditions per place. [2024-01-27 23:07:49,332 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 40 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-01-27 23:07:49,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 91 transitions, 280 flow [2024-01-27 23:07:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:49,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:49,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-01-27 23:07:49,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6434782608695652 [2024-01-27 23:07:49,334 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 196 flow. Second operand 4 states and 296 transitions. [2024-01-27 23:07:49,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 91 transitions, 280 flow [2024-01-27 23:07:49,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 91 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:49,336 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 196 flow [2024-01-27 23:07:49,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2024-01-27 23:07:49,339 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -24 predicate places. [2024-01-27 23:07:49,339 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 196 flow [2024-01-27 23:07:49,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 23:07:49,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:49,340 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] [2024-01-27 23:07:49,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:07:49,340 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:49,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:49,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2050178760, now seen corresponding path program 1 times [2024-01-27 23:07:49,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:49,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269955791] [2024-01-27 23:07:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:49,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:49,467 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 23:07:49,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:49,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269955791] [2024-01-27 23:07:49,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269955791] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:49,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:49,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:49,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697949345] [2024-01-27 23:07:49,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:49,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:49,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:49,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:49,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:49,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 115 [2024-01-27 23:07:49,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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 23:07:49,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:49,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 115 [2024-01-27 23:07:49,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:50,134 INFO L124 PetriNetUnfolderBase]: 8204/12173 cut-off events. [2024-01-27 23:07:50,135 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 23:07:50,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22435 conditions, 12173 events. 8204/12173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 82449 event pairs, 564 based on Foata normal form. 936/12682 useless extension candidates. Maximal degree in co-relation 22408. Up to 8869 conditions per place. [2024-01-27 23:07:50,203 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 56 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-01-27 23:07:50,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 105 transitions, 343 flow [2024-01-27 23:07:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:50,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2024-01-27 23:07:50,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7369565217391304 [2024-01-27 23:07:50,206 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 196 flow. Second operand 4 states and 339 transitions. [2024-01-27 23:07:50,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 105 transitions, 343 flow [2024-01-27 23:07:50,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 105 transitions, 337 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 23:07:50,209 INFO L231 Difference]: Finished difference. Result has 90 places, 86 transitions, 184 flow [2024-01-27 23:07:50,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=90, PETRI_TRANSITIONS=86} [2024-01-27 23:07:50,209 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -29 predicate places. [2024-01-27 23:07:50,210 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 86 transitions, 184 flow [2024-01-27 23:07:50,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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 23:07:50,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:50,210 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 23:07:50,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 23:07:50,210 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:50,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1170749059, now seen corresponding path program 1 times [2024-01-27 23:07:50,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:50,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737846340] [2024-01-27 23:07:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:50,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:50,299 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 23:07:50,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:50,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737846340] [2024-01-27 23:07:50,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737846340] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:50,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:50,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:50,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079016306] [2024-01-27 23:07:50,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:50,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:50,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:50,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:50,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 115 [2024-01-27 23:07:50,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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 23:07:50,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:50,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 115 [2024-01-27 23:07:50,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:50,967 INFO L124 PetriNetUnfolderBase]: 8290/11732 cut-off events. [2024-01-27 23:07:50,967 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-01-27 23:07:50,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22074 conditions, 11732 events. 8290/11732 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 74280 event pairs, 648 based on Foata normal form. 720/12038 useless extension candidates. Maximal degree in co-relation 22039. Up to 8769 conditions per place. [2024-01-27 23:07:51,042 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 60 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2024-01-27 23:07:51,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 104 transitions, 347 flow [2024-01-27 23:07:51,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:51,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 343 transitions. [2024-01-27 23:07:51,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7456521739130435 [2024-01-27 23:07:51,045 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 184 flow. Second operand 4 states and 343 transitions. [2024-01-27 23:07:51,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 104 transitions, 347 flow [2024-01-27 23:07:51,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 104 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:51,047 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 175 flow [2024-01-27 23:07:51,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2024-01-27 23:07:51,048 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -33 predicate places. [2024-01-27 23:07:51,048 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 175 flow [2024-01-27 23:07:51,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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 23:07:51,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:51,048 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] [2024-01-27 23:07:51,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 23:07:51,048 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 23:07:51,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:51,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1853980624, now seen corresponding path program 1 times [2024-01-27 23:07:51,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:51,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236079674] [2024-01-27 23:07:51,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:51,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:07:51,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:07:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:07:51,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:07:51,093 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:07:51,094 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 66 remaining) [2024-01-27 23:07:51,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 66 remaining) [2024-01-27 23:07:51,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 66 remaining) [2024-01-27 23:07:51,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 66 remaining) [2024-01-27 23:07:51,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 66 remaining) [2024-01-27 23:07:51,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 66 remaining) [2024-01-27 23:07:51,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 66 remaining) [2024-01-27 23:07:51,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 66 remaining) [2024-01-27 23:07:51,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 66 remaining) [2024-01-27 23:07:51,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 66 remaining) [2024-01-27 23:07:51,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 66 remaining) [2024-01-27 23:07:51,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 66 remaining) [2024-01-27 23:07:51,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 66 remaining) [2024-01-27 23:07:51,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 66 remaining) [2024-01-27 23:07:51,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 66 remaining) [2024-01-27 23:07:51,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 66 remaining) [2024-01-27 23:07:51,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 66 remaining) [2024-01-27 23:07:51,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 66 remaining) [2024-01-27 23:07:51,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 66 remaining) [2024-01-27 23:07:51,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 66 remaining) [2024-01-27 23:07:51,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 66 remaining) [2024-01-27 23:07:51,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 66 remaining) [2024-01-27 23:07:51,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 66 remaining) [2024-01-27 23:07:51,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 66 remaining) [2024-01-27 23:07:51,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 66 remaining) [2024-01-27 23:07:51,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 66 remaining) [2024-01-27 23:07:51,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 66 remaining) [2024-01-27 23:07:51,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 66 remaining) [2024-01-27 23:07:51,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 66 remaining) [2024-01-27 23:07:51,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 66 remaining) [2024-01-27 23:07:51,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 66 remaining) [2024-01-27 23:07:51,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 66 remaining) [2024-01-27 23:07:51,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 66 remaining) [2024-01-27 23:07:51,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 66 remaining) [2024-01-27 23:07:51,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 66 remaining) [2024-01-27 23:07:51,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 66 remaining) [2024-01-27 23:07:51,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (29 of 66 remaining) [2024-01-27 23:07:51,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 66 remaining) [2024-01-27 23:07:51,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 66 remaining) [2024-01-27 23:07:51,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 66 remaining) [2024-01-27 23:07:51,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 66 remaining) [2024-01-27 23:07:51,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 66 remaining) [2024-01-27 23:07:51,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 66 remaining) [2024-01-27 23:07:51,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 66 remaining) [2024-01-27 23:07:51,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 66 remaining) [2024-01-27 23:07:51,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 66 remaining) [2024-01-27 23:07:51,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 66 remaining) [2024-01-27 23:07:51,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 66 remaining) [2024-01-27 23:07:51,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 66 remaining) [2024-01-27 23:07:51,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 66 remaining) [2024-01-27 23:07:51,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 66 remaining) [2024-01-27 23:07:51,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 66 remaining) [2024-01-27 23:07:51,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 66 remaining) [2024-01-27 23:07:51,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 66 remaining) [2024-01-27 23:07:51,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 66 remaining) [2024-01-27 23:07:51,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 66 remaining) [2024-01-27 23:07:51,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 66 remaining) [2024-01-27 23:07:51,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 66 remaining) [2024-01-27 23:07:51,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 66 remaining) [2024-01-27 23:07:51,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 66 remaining) [2024-01-27 23:07:51,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 66 remaining) [2024-01-27 23:07:51,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 66 remaining) [2024-01-27 23:07:51,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 66 remaining) [2024-01-27 23:07:51,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 66 remaining) [2024-01-27 23:07:51,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 66 remaining) [2024-01-27 23:07:51,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 66 remaining) [2024-01-27 23:07:51,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 23:07:51,113 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:51,119 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:07:51,120 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:07:51,177 INFO L503 ceAbstractionStarter]: Automizer considered 40 witness invariants [2024-01-27 23:07:51,177 INFO L504 ceAbstractionStarter]: WitnessConsidered=40 [2024-01-27 23:07:51,180 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:07:51 BasicIcfg [2024-01-27 23:07:51,180 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:07:51,181 INFO L158 Benchmark]: Toolchain (without parser) took 10008.95ms. Allocated memory was 155.2MB in the beginning and 5.1GB in the end (delta: 5.0GB). Free memory was 78.7MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-01-27 23:07:51,181 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory was 106.3MB in the beginning and 106.2MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:51,181 INFO L158 Benchmark]: Witness Parser took 1.26ms. Allocated memory is still 155.2MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:51,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.29ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 78.6MB in the beginning and 177.2MB in the end (delta: -98.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-01-27 23:07:51,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.30ms. Allocated memory is still 211.8MB. Free memory was 177.2MB in the beginning and 175.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:51,183 INFO L158 Benchmark]: Boogie Preprocessor took 38.98ms. Allocated memory is still 211.8MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:51,183 INFO L158 Benchmark]: RCFGBuilder took 546.69ms. Allocated memory is still 211.8MB. Free memory was 173.0MB in the beginning and 135.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-01-27 23:07:51,184 INFO L158 Benchmark]: TraceAbstraction took 9088.09ms. Allocated memory was 211.8MB in the beginning and 5.1GB in the end (delta: 4.9GB). Free memory was 134.2MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-01-27 23:07:51,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory was 106.3MB in the beginning and 106.2MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.26ms. Allocated memory is still 155.2MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.29ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 78.6MB in the beginning and 177.2MB in the end (delta: -98.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.30ms. Allocated memory is still 211.8MB. Free memory was 177.2MB in the beginning and 175.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.98ms. Allocated memory is still 211.8MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.69ms. Allocated memory is still 211.8MB. Free memory was 173.0MB in the beginning and 135.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9088.09ms. Allocated memory was 211.8MB in the beginning and 5.1GB in the end (delta: 4.9GB). Free memory was 134.2MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L35] 0 unsigned int x1, x2, x3, x4, n; [L74] 0 pthread_t t1, t2, t3, t4; VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L77] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] [L77] 0 x1 = __VERIFIER_nondet_uint() [L78] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L78] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L78] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L78] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] [L78] 0 x2 = __VERIFIER_nondet_uint() [L79] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x3=0, x4=0] [L79] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x3=0, x4=0] [L79] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] [L79] 0 x3 = __VERIFIER_nondet_uint() [L80] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x4=0] [L80] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] [L80] 0 x4 = __VERIFIER_nondet_uint() [L81] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] [L81] 0 n = __VERIFIER_nondet_uint() [L84] CALL 0 assume_abort_if_not( x1 == x2 && x1 > 0 && x3 == x4 && x3 > 0 ) [L32] COND FALSE 0 !(!cond) [L84] RET 0 assume_abort_if_not( x1 == x2 && x1 > 0 && x3 == x4 && x3 > 0 ) [L86] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=1, x2=1, x3=1, x4=1] [L38] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, x1=1, x2=1, x3=1, x4=1] [L38] COND FALSE 1 !(x1 < n) VAL [_argptr={0:0}, _argptr={0:0}, n=1, x1=1, x2=1, x3=1, x4=1] [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, n=1, x1=1, x2=1, x3=1, x4=1] [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, n=1, x1=1, x2=1, x3=1, x4=1] - UnprovableResult [Line: 38]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 170 locations, 66 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: 8.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 333 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 775 IncrementalHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 33 mSDtfsCounter, 775 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 23:07:51,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE