./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 a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/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-a340643-m [2024-01-27 14:50:06,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:50:06,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:50:06,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:50:06,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:50:06,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:50:06,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:50:06,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:50:06,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:50:06,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:50:06,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:50:06,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:50:06,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:50:06,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:50:06,380 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:50:06,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:50:06,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:50:06,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:50:06,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:50:06,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:50:06,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:50:06,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:50:06,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:50:06,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:50:06,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:50:06,384 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:50:06,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:50:06,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:50:06,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:50:06,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:50:06,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:50:06,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:50:06,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:50:06,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:50:06,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:50:06,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:50:06,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:50:06,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:50:06,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:50:06,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:50:06,388 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:50:06,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:50:06,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:50:06,389 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:50:06,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:50:06,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:50:06,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:50:06,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:50:06,662 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:50:06,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2024-01-27 14:50:07,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:50:08,023 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:50:08,024 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2024-01-27 14:50:08,031 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a858e3c5e/649824ab96114bc4bddfab6b49514b89/FLAGf5915446f [2024-01-27 14:50:08,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a858e3c5e/649824ab96114bc4bddfab6b49514b89 [2024-01-27 14:50:08,044 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:50:08,044 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:50:08,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x4.wvr.yml/witness.yml [2024-01-27 14:50:08,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:50:08,160 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:50:08,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:50:08,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:50:08,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:50:08,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:50:08" (1/2) ... [2024-01-27 14:50:08,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8d123e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:50:08, skipping insertion in model container [2024-01-27 14:50:08,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:50:08" (1/2) ... [2024-01-27 14:50:08,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f2fa963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:50:08, skipping insertion in model container [2024-01-27 14:50:08,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:50:08" (2/2) ... [2024-01-27 14:50:08,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8d123e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08, skipping insertion in model container [2024-01-27 14:50:08,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:50:08" (2/2) ... [2024-01-27 14:50:08,174 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:50:08,196 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:50:08,198 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,198 INFO L98 nessWitnessExtractor]: Loop invariant at [L47-L50] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,199 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,199 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,199 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] n == 0U [2024-01-27 14:50:08,199 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,199 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] x2 == 0U [2024-01-27 14:50:08,199 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] n == 0U [2024-01-27 14:50:08,200 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] x4 == 0U [2024-01-27 14:50:08,200 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] x3 == 0U [2024-01-27 14:50:08,200 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,200 INFO L98 nessWitnessExtractor]: Loop invariant at [L56-L59] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,200 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,200 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (long long )x1 + (long long )x3 >= 0LL [2024-01-27 14:50:08,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x2 == 0U [2024-01-27 14:50:08,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x4 == 0U [2024-01-27 14:50:08,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-27 14:50:08,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (long long )x1 - (long long )x3 >= 0LL [2024-01-27 14:50:08,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x1 == 0U [2024-01-27 14:50:08,201 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] n == 0U [2024-01-27 14:50:08,202 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (0LL - (long long )x1) - (long long )x3 >= 0LL [2024-01-27 14:50:08,202 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] x3 == 0U [2024-01-27 14:50:08,202 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,202 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] n == 0U [2024-01-27 14:50:08,203 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] x4 == 0U [2024-01-27 14:50:08,203 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,203 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] x3 == 0U [2024-01-27 14:50:08,203 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] x4 == 0U [2024-01-27 14:50:08,203 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] n == 0U [2024-01-27 14:50:08,203 INFO L98 nessWitnessExtractor]: Loop invariant at [L65-L68] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,204 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,204 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] n == 0U [2024-01-27 14:50:08,204 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,204 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,204 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,205 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L41] (unsigned long )_argptr == 0UL [2024-01-27 14:50:08,228 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:50:08,398 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 14:50:08,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:50:08,410 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 14:50:08,540 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 14:50:08,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:50:08,562 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:50:08,565 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08 WrapperNode [2024-01-27 14:50:08,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:50:08,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:50:08,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:50:08,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:50:08,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,594 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,631 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-27 14:50:08,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:50:08,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:50:08,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:50:08,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:50:08,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,685 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 14:50:08,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:50:08,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:50:08,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:50:08,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:50:08,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (1/1) ... [2024-01-27 14:50:08,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:50:08,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:50:08,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 14:50:08,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 14:50:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:50:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:50:08,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:50:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:50:08,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:50:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 14:50:08,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 14:50:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 14:50:08,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 14:50:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:50:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:50:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:50:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:50:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:50:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:50:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:50:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:50:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:50:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:50:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:50:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:50:08,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:50:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:50:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:50:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:50:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:50:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:50:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:50:08,805 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:50:08,939 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:50:08,941 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:50:09,276 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:50:09,277 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:50:09,441 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:50:09,441 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-27 14:50:09,442 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:50:09 BoogieIcfgContainer [2024-01-27 14:50:09,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:50:09,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:50:09,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:50:09,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:50:09,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:50:08" (1/4) ... [2024-01-27 14:50:09,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449165a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:50:09, skipping insertion in model container [2024-01-27 14:50:09,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:50:08" (2/4) ... [2024-01-27 14:50:09,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449165a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:50:09, skipping insertion in model container [2024-01-27 14:50:09,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:08" (3/4) ... [2024-01-27 14:50:09,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449165a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:50:09, skipping insertion in model container [2024-01-27 14:50:09,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:50:09" (4/4) ... [2024-01-27 14:50:09,450 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2024-01-27 14:50:09,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:50:09,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2024-01-27 14:50:09,474 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:50:09,556 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-27 14:50:09,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 115 transitions, 258 flow [2024-01-27 14:50:09,657 INFO L124 PetriNetUnfolderBase]: 4/111 cut-off events. [2024-01-27 14:50:09,657 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 14:50:09,662 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 14:50:09,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 115 transitions, 258 flow [2024-01-27 14:50:09,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 110 transitions, 244 flow [2024-01-27 14:50:09,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:50:09,683 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;@4b8b0219, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:50:09,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2024-01-27 14:50:09,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:50:09,688 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:50:09,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:50:09,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:09,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:50:09,690 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 14:50:09,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:09,696 INFO L85 PathProgramCache]: Analyzing trace with hash 13165, now seen corresponding path program 1 times [2024-01-27 14:50:09,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:09,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88003109] [2024-01-27 14:50:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:09,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:09,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:09,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88003109] [2024-01-27 14:50:09,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88003109] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:09,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:09,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:09,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399616449] [2024-01-27 14:50:09,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:09,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:10,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:10,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:10,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:10,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 115 [2024-01-27 14:50:10,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 110 transitions, 244 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 14:50:10,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:10,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 115 [2024-01-27 14:50:10,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:11,587 INFO L124 PetriNetUnfolderBase]: 7378/11959 cut-off events. [2024-01-27 14:50:11,587 INFO L125 PetriNetUnfolderBase]: For 437/437 co-relation queries the response was YES. [2024-01-27 14:50:11,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21627 conditions, 11959 events. 7378/11959 cut-off events. For 437/437 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88792 event pairs, 4752 based on Foata normal form. 3/10362 useless extension candidates. Maximal degree in co-relation 18732. Up to 9192 conditions per place. [2024-01-27 14:50:11,782 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-01-27 14:50:11,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 105 transitions, 310 flow [2024-01-27 14:50:11,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:50:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:50:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-01-27 14:50:11,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7420289855072464 [2024-01-27 14:50:11,802 INFO L175 Difference]: Start difference. First operand has 119 places, 110 transitions, 244 flow. Second operand 3 states and 256 transitions. [2024-01-27 14:50:11,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 105 transitions, 310 flow [2024-01-27 14:50:11,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 294 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-27 14:50:11,829 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 222 flow [2024-01-27 14:50:11,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-01-27 14:50:11,835 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -11 predicate places. [2024-01-27 14:50:11,835 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 222 flow [2024-01-27 14:50:11,839 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 14:50:11,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:11,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:50:11,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:50:11,846 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 14:50:11,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash 408572, now seen corresponding path program 1 times [2024-01-27 14:50:11,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:11,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028199480] [2024-01-27 14:50:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:11,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:11,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:11,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028199480] [2024-01-27 14:50:11,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028199480] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:11,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:11,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:11,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987623151] [2024-01-27 14:50:11,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:11,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:11,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:11,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:12,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 115 [2024-01-27 14:50:12,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:50:12,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:12,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 115 [2024-01-27 14:50:12,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:13,168 INFO L124 PetriNetUnfolderBase]: 7378/11956 cut-off events. [2024-01-27 14:50:13,169 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-27 14:50:13,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21311 conditions, 11956 events. 7378/11956 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88757 event pairs, 4752 based on Foata normal form. 3/10362 useless extension candidates. Maximal degree in co-relation 21277. Up to 9194 conditions per place. [2024-01-27 14:50:13,274 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-01-27 14:50:13,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 102 transitions, 292 flow [2024-01-27 14:50:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:50:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:50:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2024-01-27 14:50:13,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7101449275362319 [2024-01-27 14:50:13,277 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 222 flow. Second operand 3 states and 245 transitions. [2024-01-27 14:50:13,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 102 transitions, 292 flow [2024-01-27 14:50:13,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:50:13,280 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 216 flow [2024-01-27 14:50:13,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-01-27 14:50:13,281 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -14 predicate places. [2024-01-27 14:50:13,281 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 216 flow [2024-01-27 14:50:13,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:50:13,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:13,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 14:50:13,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:50:13,282 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 14:50:13,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:13,283 INFO L85 PathProgramCache]: Analyzing trace with hash 12666193, now seen corresponding path program 1 times [2024-01-27 14:50:13,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:13,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970582981] [2024-01-27 14:50:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:13,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:13,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:13,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970582981] [2024-01-27 14:50:13,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970582981] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:13,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:13,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:13,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566768547] [2024-01-27 14:50:13,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:13,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:13,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:13,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:13,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:13,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 115 [2024-01-27 14:50:13,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 216 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 14:50:13,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:13,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 115 [2024-01-27 14:50:13,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:15,292 INFO L124 PetriNetUnfolderBase]: 16105/23669 cut-off events. [2024-01-27 14:50:15,292 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2024-01-27 14:50:15,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44151 conditions, 23669 events. 16105/23669 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 164633 event pairs, 11277 based on Foata normal form. 3/17094 useless extension candidates. Maximal degree in co-relation 44132. Up to 20171 conditions per place. [2024-01-27 14:50:15,493 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 41 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-01-27 14:50:15,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 97 transitions, 292 flow [2024-01-27 14:50:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:50:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:50:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2024-01-27 14:50:15,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7043478260869566 [2024-01-27 14:50:15,496 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 216 flow. Second operand 3 states and 243 transitions. [2024-01-27 14:50:15,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 97 transitions, 292 flow [2024-01-27 14:50:15,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 97 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:50:15,498 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 206 flow [2024-01-27 14:50:15,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2024-01-27 14:50:15,499 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -19 predicate places. [2024-01-27 14:50:15,500 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 206 flow [2024-01-27 14:50:15,500 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 14:50:15,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:15,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:50:15,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:50:15,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 14:50:15,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1982571416, now seen corresponding path program 1 times [2024-01-27 14:50:15,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210546816] [2024-01-27 14:50:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:15,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:15,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:15,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210546816] [2024-01-27 14:50:15,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210546816] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:15,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:15,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:15,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188849437] [2024-01-27 14:50:15,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:15,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:15,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:15,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:15,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:15,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 115 [2024-01-27 14:50:15,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 206 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 14:50:15,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:15,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 115 [2024-01-27 14:50:15,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:16,642 INFO L124 PetriNetUnfolderBase]: 7378/11947 cut-off events. [2024-01-27 14:50:16,642 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-01-27 14:50:16,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21302 conditions, 11947 events. 7378/11947 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 88671 event pairs, 4752 based on Foata normal form. 4/10361 useless extension candidates. Maximal degree in co-relation 21269. Up to 9191 conditions per place. [2024-01-27 14:50:16,734 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-01-27 14:50:16,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 93 transitions, 274 flow [2024-01-27 14:50:16,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:50:16,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:50:16,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2024-01-27 14:50:16,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2024-01-27 14:50:16,739 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 206 flow. Second operand 3 states and 255 transitions. [2024-01-27 14:50:16,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 93 transitions, 274 flow [2024-01-27 14:50:16,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 93 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:50:16,743 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 198 flow [2024-01-27 14:50:16,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-01-27 14:50:16,745 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -23 predicate places. [2024-01-27 14:50:16,745 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 198 flow [2024-01-27 14:50:16,745 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 14:50:16,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:16,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:50:16,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:50:16,746 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 14:50:16,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:16,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1330171356, now seen corresponding path program 1 times [2024-01-27 14:50:16,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:16,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243037474] [2024-01-27 14:50:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:16,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:16,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:16,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243037474] [2024-01-27 14:50:16,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243037474] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:16,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:16,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:16,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360124655] [2024-01-27 14:50:16,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:16,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:16,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:16,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:16,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:16,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 115 [2024-01-27 14:50:16,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 198 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 14:50:16,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:16,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 115 [2024-01-27 14:50:16,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:17,784 INFO L124 PetriNetUnfolderBase]: 7378/11945 cut-off events. [2024-01-27 14:50:17,785 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-27 14:50:17,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21300 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 88744 event pairs, 4752 based on Foata normal form. 1/10357 useless extension candidates. Maximal degree in co-relation 21271. Up to 9193 conditions per place. [2024-01-27 14:50:17,877 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 36 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-27 14:50:17,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 91 transitions, 270 flow [2024-01-27 14:50:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:50:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:50:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-01-27 14:50:17,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7507246376811594 [2024-01-27 14:50:17,880 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 198 flow. Second operand 3 states and 259 transitions. [2024-01-27 14:50:17,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 91 transitions, 270 flow [2024-01-27 14:50:17,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 91 transitions, 266 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:50:17,882 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 194 flow [2024-01-27 14:50:17,883 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2024-01-27 14:50:17,886 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -25 predicate places. [2024-01-27 14:50:17,886 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 194 flow [2024-01-27 14:50:17,887 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 14:50:17,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:17,887 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 14:50:17,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:50:17,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 14:50:17,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:17,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2050178760, now seen corresponding path program 1 times [2024-01-27 14:50:17,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:17,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430986076] [2024-01-27 14:50:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:18,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:18,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430986076] [2024-01-27 14:50:18,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430986076] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:18,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:18,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:50:18,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452409420] [2024-01-27 14:50:18,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:18,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:50:18,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:50:18,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:50:18,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 115 [2024-01-27 14:50:18,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 194 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 14:50:18,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:18,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 115 [2024-01-27 14:50:18,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:18,991 INFO L124 PetriNetUnfolderBase]: 8278/13594 cut-off events. [2024-01-27 14:50:18,992 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-01-27 14:50:19,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24233 conditions, 13594 events. 8278/13594 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 103281 event pairs, 4388 based on Foata normal form. 624/13270 useless extension candidates. Maximal degree in co-relation 24211. Up to 9247 conditions per place. [2024-01-27 14:50:19,120 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 56 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-01-27 14:50:19,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 105 transitions, 341 flow [2024-01-27 14:50:19,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:50:19,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:50:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2024-01-27 14:50:19,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7369565217391304 [2024-01-27 14:50:19,122 INFO L175 Difference]: Start difference. First operand has 94 places, 91 transitions, 194 flow. Second operand 4 states and 339 transitions. [2024-01-27 14:50:19,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 105 transitions, 341 flow [2024-01-27 14:50:19,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 105 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:50:19,125 INFO L231 Difference]: Finished difference. Result has 90 places, 86 transitions, 184 flow [2024-01-27 14:50:19,125 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 14:50:19,126 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -29 predicate places. [2024-01-27 14:50:19,126 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 86 transitions, 184 flow [2024-01-27 14:50:19,126 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 14:50:19,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:19,127 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 14:50:19,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:50:19,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 14:50:19,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1170749059, now seen corresponding path program 1 times [2024-01-27 14:50:19,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:19,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322578791] [2024-01-27 14:50:19,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:19,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:19,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:19,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322578791] [2024-01-27 14:50:19,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322578791] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:19,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:19,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:50:19,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000681034] [2024-01-27 14:50:19,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:19,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:50:19,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:19,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:50:19,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:50:19,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 115 [2024-01-27 14:50:19,273 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 14:50:19,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:19,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 115 [2024-01-27 14:50:19,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:20,259 INFO L124 PetriNetUnfolderBase]: 8398/13839 cut-off events. [2024-01-27 14:50:20,260 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-01-27 14:50:20,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24613 conditions, 13839 events. 8398/13839 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 865. Compared 105023 event pairs, 2764 based on Foata normal form. 720/13682 useless extension candidates. Maximal degree in co-relation 24578. Up to 9209 conditions per place. [2024-01-27 14:50:20,372 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 60 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2024-01-27 14:50:20,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 104 transitions, 347 flow [2024-01-27 14:50:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:50:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:50:20,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 343 transitions. [2024-01-27 14:50:20,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7456521739130435 [2024-01-27 14:50:20,374 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 184 flow. Second operand 4 states and 343 transitions. [2024-01-27 14:50:20,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 104 transitions, 347 flow [2024-01-27 14:50:20,375 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 14:50:20,377 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 175 flow [2024-01-27 14:50:20,377 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 14:50:20,378 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -33 predicate places. [2024-01-27 14:50:20,378 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 175 flow [2024-01-27 14:50:20,378 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 14:50:20,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:20,379 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 14:50:20,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:50:20,379 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-01-27 14:50:20,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:20,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1168184500, now seen corresponding path program 1 times [2024-01-27 14:50:20,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:20,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284092703] [2024-01-27 14:50:20,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:20,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:50:20,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:50:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:50:20,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:50:20,427 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:50:20,428 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 66 remaining) [2024-01-27 14:50:20,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 66 remaining) [2024-01-27 14:50:20,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 66 remaining) [2024-01-27 14:50:20,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 66 remaining) [2024-01-27 14:50:20,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 66 remaining) [2024-01-27 14:50:20,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 66 remaining) [2024-01-27 14:50:20,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 66 remaining) [2024-01-27 14:50:20,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 66 remaining) [2024-01-27 14:50:20,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 66 remaining) [2024-01-27 14:50:20,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 66 remaining) [2024-01-27 14:50:20,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 66 remaining) [2024-01-27 14:50:20,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 66 remaining) [2024-01-27 14:50:20,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 66 remaining) [2024-01-27 14:50:20,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 66 remaining) [2024-01-27 14:50:20,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 66 remaining) [2024-01-27 14:50:20,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 66 remaining) [2024-01-27 14:50:20,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 66 remaining) [2024-01-27 14:50:20,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 66 remaining) [2024-01-27 14:50:20,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 66 remaining) [2024-01-27 14:50:20,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 66 remaining) [2024-01-27 14:50:20,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 66 remaining) [2024-01-27 14:50:20,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 66 remaining) [2024-01-27 14:50:20,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 66 remaining) [2024-01-27 14:50:20,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 66 remaining) [2024-01-27 14:50:20,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 66 remaining) [2024-01-27 14:50:20,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 66 remaining) [2024-01-27 14:50:20,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 66 remaining) [2024-01-27 14:50:20,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 66 remaining) [2024-01-27 14:50:20,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 66 remaining) [2024-01-27 14:50:20,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 66 remaining) [2024-01-27 14:50:20,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 66 remaining) [2024-01-27 14:50:20,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 66 remaining) [2024-01-27 14:50:20,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 66 remaining) [2024-01-27 14:50:20,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 66 remaining) [2024-01-27 14:50:20,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 66 remaining) [2024-01-27 14:50:20,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 66 remaining) [2024-01-27 14:50:20,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (29 of 66 remaining) [2024-01-27 14:50:20,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 66 remaining) [2024-01-27 14:50:20,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 66 remaining) [2024-01-27 14:50:20,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 66 remaining) [2024-01-27 14:50:20,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 66 remaining) [2024-01-27 14:50:20,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 66 remaining) [2024-01-27 14:50:20,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 66 remaining) [2024-01-27 14:50:20,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 66 remaining) [2024-01-27 14:50:20,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 66 remaining) [2024-01-27 14:50:20,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 66 remaining) [2024-01-27 14:50:20,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 66 remaining) [2024-01-27 14:50:20,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 66 remaining) [2024-01-27 14:50:20,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 66 remaining) [2024-01-27 14:50:20,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 66 remaining) [2024-01-27 14:50:20,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 66 remaining) [2024-01-27 14:50:20,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 66 remaining) [2024-01-27 14:50:20,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 66 remaining) [2024-01-27 14:50:20,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 66 remaining) [2024-01-27 14:50:20,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 66 remaining) [2024-01-27 14:50:20,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 66 remaining) [2024-01-27 14:50:20,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 66 remaining) [2024-01-27 14:50:20,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 66 remaining) [2024-01-27 14:50:20,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 66 remaining) [2024-01-27 14:50:20,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 66 remaining) [2024-01-27 14:50:20,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 66 remaining) [2024-01-27 14:50:20,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 66 remaining) [2024-01-27 14:50:20,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 66 remaining) [2024-01-27 14:50:20,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 66 remaining) [2024-01-27 14:50:20,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 66 remaining) [2024-01-27 14:50:20,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 66 remaining) [2024-01-27 14:50:20,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 14:50:20,444 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:50:20,450 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:50:20,450 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:50:20,479 INFO L503 ceAbstractionStarter]: Automizer considered 40 witness invariants [2024-01-27 14:50:20,479 INFO L504 ceAbstractionStarter]: WitnessConsidered=40 [2024-01-27 14:50:20,480 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:50:20 BasicIcfg [2024-01-27 14:50:20,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:50:20,481 INFO L158 Benchmark]: Toolchain (without parser) took 12320.89ms. Allocated memory was 132.1MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 73.6MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-01-27 14:50:20,481 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:50:20,481 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:50:20,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.20ms. Allocated memory is still 132.1MB. Free memory was 73.3MB in the beginning and 101.1MB in the end (delta: -27.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-01-27 14:50:20,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.84ms. Allocated memory is still 132.1MB. Free memory was 100.8MB in the beginning and 99.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:50:20,482 INFO L158 Benchmark]: Boogie Preprocessor took 82.70ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:50:20,483 INFO L158 Benchmark]: RCFGBuilder took 725.18ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 59.8MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-01-27 14:50:20,483 INFO L158 Benchmark]: TraceAbstraction took 11036.65ms. Allocated memory was 132.1MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 59.2MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-01-27 14:50:20,484 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.20ms. Allocated memory is still 132.1MB. Free memory was 73.3MB in the beginning and 101.1MB in the end (delta: -27.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.84ms. Allocated memory is still 132.1MB. Free memory was 100.8MB in the beginning and 99.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.70ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 725.18ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 59.8MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11036.65ms. Allocated memory was 132.1MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 59.2MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.4GB. 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[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[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[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[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[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,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[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[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[ARITHPLUS,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[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[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[x2],IntegerLiteral[0U]]]] [L78] 0 x2 = __VERIFIER_nondet_uint() [L79] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],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[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]]]] [L79] 0 x3 = __VERIFIER_nondet_uint() [L80] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],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[n],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,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: 40]: 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: 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: 10.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 297 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 645 IncrementalHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 11 mSDtfsCounter, 645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 14:50:20,516 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