./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.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/popl20-proofs-counter-add-4-semi-Q67.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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/popl20-proofs-counter-add-4-semi-Q67.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-proofs-counter-add-4-semi-Q67.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-ab2e0ac-m [2024-01-29 14:20:11,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:20:11,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:20:11,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:20:11,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:20:11,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:20:11,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:20:11,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:20:11,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:20:11,806 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:20:11,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:20:11,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:20:11,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:20:11,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:20:11,808 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:20:11,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:20:11,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:20:11,809 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:20:11,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:20:11,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:20:11,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:20:11,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:20:11,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:20:11,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:20:11,811 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:20:11,811 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:20:11,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:20:11,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:20:11,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:20:11,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:20:11,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:20:11,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:20:11,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:20:11,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:20:11,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:20:11,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:20:11,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:20:11,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:20:11,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:20:11,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:20:11,814 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:20:11,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:20:11,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:20:11,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:20:12,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:20:12,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:20:12,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:20:12,054 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:20:12,054 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:20:12,055 INFO L431 ainManager$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/popl20-proofs-counter-add-4-semi-Q67.wvr.yml/witness.yml [2024-01-29 14:20:12,292 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:20:12,294 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:20:12,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-01-29 14:20:13,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:20:13,445 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:20:13,446 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-01-29 14:20:13,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1222edc11/4511c1fc3213458485460b46d303e05d/FLAG0c5e7d177 [2024-01-29 14:20:13,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1222edc11/4511c1fc3213458485460b46d303e05d [2024-01-29 14:20:13,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:20:13,466 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:20:13,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:20:13,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:20:13,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:20:13,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:12" (1/2) ... [2024-01-29 14:20:13,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbe3d89 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:13, skipping insertion in model container [2024-01-29 14:20:13,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:12" (1/2) ... [2024-01-29 14:20:13,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fb29992 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:13, skipping insertion in model container [2024-01-29 14:20:13,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:20:13" (2/2) ... [2024-01-29 14:20:13,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbe3d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13, skipping insertion in model container [2024-01-29 14:20:13,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:20:13" (2/2) ... [2024-01-29 14:20:13,476 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:20:13,499 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:20:13,501 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L57] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,501 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,501 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] counter <= 2147483646 [2024-01-29 14:20:13,501 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] 0 <= i2 [2024-01-29 14:20:13,501 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] 0 <= i1 [2024-01-29 14:20:13,501 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] 0 <= j1 [2024-01-29 14:20:13,502 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] 0 <= j2 [2024-01-29 14:20:13,502 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,502 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] 0 <= j2 [2024-01-29 14:20:13,502 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] -2147483647 <= counter [2024-01-29 14:20:13,502 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] 0 <= i1 [2024-01-29 14:20:13,502 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] 0 <= i2 [2024-01-29 14:20:13,503 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] 1 <= j1 [2024-01-29 14:20:13,503 INFO L98 nessWitnessExtractor]: Loop invariant at [L40-L45] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,503 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,503 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,503 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] counter == 0 [2024-01-29 14:20:13,503 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] i1 == 0 [2024-01-29 14:20:13,503 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] i2 == 0 [2024-01-29 14:20:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] j1 == 0 [2024-01-29 14:20:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] j2 == 0 [2024-01-29 14:20:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] M1 == 0 [2024-01-29 14:20:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] M2 == 0 [2024-01-29 14:20:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] 0 <= i1 [2024-01-29 14:20:13,504 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] 0 <= j2 [2024-01-29 14:20:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] 0 <= j1 [2024-01-29 14:20:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] 0 <= i2 [2024-01-29 14:20:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] 0 <= j2 [2024-01-29 14:20:13,505 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] 0 <= j1 [2024-01-29 14:20:13,506 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] 0 <= i1 [2024-01-29 14:20:13,506 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] 0 <= i2 [2024-01-29 14:20:13,506 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,506 INFO L98 nessWitnessExtractor]: Loop invariant at [L63-L68] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,506 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] j2 == 0 [2024-01-29 14:20:13,506 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] i1 == 0 [2024-01-29 14:20:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] j1 == 0 [2024-01-29 14:20:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] M2 == 0 [2024-01-29 14:20:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] i2 == 0 [2024-01-29 14:20:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] counter == 0 [2024-01-29 14:20:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] counter == 0 [2024-01-29 14:20:13,507 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] j2 == 0 [2024-01-29 14:20:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] i2 == 0 [2024-01-29 14:20:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] j1 == 0 [2024-01-29 14:20:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] i1 == 0 [2024-01-29 14:20:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] M2 == 0 [2024-01-29 14:20:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] j2 == 0 [2024-01-29 14:20:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] i2 == 0 [2024-01-29 14:20:13,508 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] counter == 0 [2024-01-29 14:20:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] i1 == 0 [2024-01-29 14:20:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] j1 == 0 [2024-01-29 14:20:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] counter == 0 [2024-01-29 14:20:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] i1 == 0 [2024-01-29 14:20:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] i2 == 0 [2024-01-29 14:20:13,509 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] j1 == 0 [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] j2 == 0 [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] 0 <= j2 [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] 0 <= j1 [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] counter <= 2147483646 [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] 0 <= i2 [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] 0 <= i1 [2024-01-29 14:20:13,510 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] 0 <= i2 [2024-01-29 14:20:13,511 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,511 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] 0 <= i1 [2024-01-29 14:20:13,511 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] 0 <= j1 [2024-01-29 14:20:13,511 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] -2147483647 <= counter [2024-01-29 14:20:13,511 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] 0 <= j2 [2024-01-29 14:20:13,511 INFO L98 nessWitnessExtractor]: Loop invariant at [L74-L80] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,511 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] 0 <= j1 [2024-01-29 14:20:13,512 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] 0 <= i2 [2024-01-29 14:20:13,512 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,512 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] 0 <= i1 [2024-01-29 14:20:13,512 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] 0 <= j2 [2024-01-29 14:20:13,512 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] 0 <= i2 [2024-01-29 14:20:13,512 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,512 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] 0 <= j1 [2024-01-29 14:20:13,513 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] 0 <= i1 [2024-01-29 14:20:13,513 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] 0 <= j2 [2024-01-29 14:20:13,513 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,513 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,513 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] 0 <= i2 [2024-01-29 14:20:13,513 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,513 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] 0 <= i1 [2024-01-29 14:20:13,514 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] 0 <= j1 [2024-01-29 14:20:13,514 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] 0 <= j2 [2024-01-29 14:20:13,514 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,514 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] 1 <= j2 [2024-01-29 14:20:13,514 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] counter <= 2147483646 [2024-01-29 14:20:13,514 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] 0 <= i2 [2024-01-29 14:20:13,514 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] 0 <= i1 [2024-01-29 14:20:13,515 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] 0 <= j1 [2024-01-29 14:20:13,515 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] M1 == 0 [2024-01-29 14:20:13,515 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] i2 == 0 [2024-01-29 14:20:13,515 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] j1 == 0 [2024-01-29 14:20:13,515 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] M2 == 0 [2024-01-29 14:20:13,515 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] i1 == 0 [2024-01-29 14:20:13,515 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] counter == 0 [2024-01-29 14:20:13,516 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] N2 == 0 [2024-01-29 14:20:13,516 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] j2 == 0 [2024-01-29 14:20:13,516 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,516 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] 0 <= i1 [2024-01-29 14:20:13,516 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] counter <= 2147483646 [2024-01-29 14:20:13,516 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] 0 <= j1 [2024-01-29 14:20:13,516 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] 0 <= j2 [2024-01-29 14:20:13,517 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] 1 <= i2 [2024-01-29 14:20:13,517 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] counter == 0 [2024-01-29 14:20:13,517 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] j2 == 0 [2024-01-29 14:20:13,517 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] i2 == 0 [2024-01-29 14:20:13,517 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] j1 == 0 [2024-01-29 14:20:13,517 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] M1 == 0 [2024-01-29 14:20:13,517 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] i1 == 0 [2024-01-29 14:20:13,518 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] M2 == 0 [2024-01-29 14:20:13,518 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] N1 == 0 [2024-01-29 14:20:13,518 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] N2 == 0 [2024-01-29 14:20:13,518 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,518 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] 0 <= i2 [2024-01-29 14:20:13,518 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,518 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] 0 <= j1 [2024-01-29 14:20:13,519 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] 0 <= j2 [2024-01-29 14:20:13,519 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] 0 <= i1 [2024-01-29 14:20:13,519 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,519 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] 0 <= i2 [2024-01-29 14:20:13,519 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] 0 <= j2 [2024-01-29 14:20:13,519 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] -2147483647 <= counter [2024-01-29 14:20:13,519 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] 0 <= j1 [2024-01-29 14:20:13,520 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] 1 <= i1 [2024-01-29 14:20:13,520 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,520 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] 0 <= j2 [2024-01-29 14:20:13,520 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] -2147483647 <= counter [2024-01-29 14:20:13,520 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] 0 <= i1 [2024-01-29 14:20:13,520 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] 0 <= j1 [2024-01-29 14:20:13,520 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] 0 <= i2 [2024-01-29 14:20:13,521 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 14:20:13,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:20:13,709 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/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2024-01-29 14:20:13,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:20:13,722 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:20:13,739 WARN L424 MainDispatcher]: Unable to annotate extern int pthread_create (pthread_t *__restrict __newthread, const pthread_attr_t *__restrict __attr, void *(*__start_routine) (void *), void *__restrict __arg) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 3))); with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 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 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:20:13,810 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/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2024-01-29 14:20:13,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:20:13,822 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:20:13,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13 WrapperNode [2024-01-29 14:20:13,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:20:13,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:20:13,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:20:13,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:20:13,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,862 INFO L138 Inliner]: procedures = 22, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 230 [2024-01-29 14:20:13,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:20:13,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:20:13,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:20:13,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:20:13,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,914 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]. [2024-01-29 14:20:13,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,920 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:20:13,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:20:13,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:20:13,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:20:13,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (1/1) ... [2024-01-29 14:20:13,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:20:13,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:20:13,989 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) [2024-01-29 14:20:14,052 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 [2024-01-29 14:20:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:20:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:20:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:20:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:20:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:20:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:20:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:20:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 14:20:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 14:20:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:20:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:20:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:20:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:20:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:20:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:20:14,084 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:20:14,165 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:20:14,166 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:20:14,537 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:20:14,537 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:20:14,960 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:20:14,960 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 14:20:14,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:20:14 BoogieIcfgContainer [2024-01-29 14:20:14,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:20:14,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:20:14,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:20:14,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:20:14,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:12" (1/4) ... [2024-01-29 14:20:14,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84e77df and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:20:14, skipping insertion in model container [2024-01-29 14:20:14,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:20:13" (2/4) ... [2024-01-29 14:20:14,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84e77df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:20:14, skipping insertion in model container [2024-01-29 14:20:14,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:13" (3/4) ... [2024-01-29 14:20:14,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84e77df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:20:14, skipping insertion in model container [2024-01-29 14:20:14,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:20:14" (4/4) ... [2024-01-29 14:20:14,970 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2024-01-29 14:20:14,985 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:20:14,985 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 135 error locations. [2024-01-29 14:20:14,985 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:20:15,087 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 14:20:15,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 229 transitions, 486 flow [2024-01-29 14:20:15,203 INFO L124 PetriNetUnfolderBase]: 4/225 cut-off events. [2024-01-29 14:20:15,204 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:20:15,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 225 events. 4/225 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 831 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2024-01-29 14:20:15,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 229 transitions, 486 flow [2024-01-29 14:20:15,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 224 transitions, 472 flow [2024-01-29 14:20:15,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:20:15,238 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;@6a1a97ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:20:15,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 233 error locations. [2024-01-29 14:20:15,241 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:20:15,241 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:20:15,242 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:20:15,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:15,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:20:15,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (and 230 more)] === [2024-01-29 14:20:15,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash 47046, now seen corresponding path program 1 times [2024-01-29 14:20:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:15,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757805208] [2024-01-29 14:20:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:15,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:15,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:15,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757805208] [2024-01-29 14:20:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757805208] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:15,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:15,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532931000] [2024-01-29 14:20:15,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:15,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:15,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:15,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:15,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:15,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 229 [2024-01-29 14:20:15,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 224 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2024-01-29 14:20:15,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:15,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 229 [2024-01-29 14:20:15,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:20:23,716 INFO L124 PetriNetUnfolderBase]: 74458/106188 cut-off events. [2024-01-29 14:20:23,716 INFO L125 PetriNetUnfolderBase]: For 1701/1701 co-relation queries the response was YES. [2024-01-29 14:20:23,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207535 conditions, 106188 events. 74458/106188 cut-off events. For 1701/1701 co-relation queries the response was YES. Maximal size of possible extension queue 16012. Compared 1007665 event pairs, 73557 based on Foata normal form. 0/44615 useless extension candidates. Maximal degree in co-relation 190325. Up to 98005 conditions per place. [2024-01-29 14:20:24,843 INFO L140 encePairwiseOnDemand]: 171/229 looper letters, 59 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2024-01-29 14:20:24,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 168 transitions, 482 flow [2024-01-29 14:20:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:20:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:20:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2024-01-29 14:20:24,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6550218340611353 [2024-01-29 14:20:24,871 INFO L175 Difference]: Start difference. First operand has 233 places, 224 transitions, 472 flow. Second operand 3 states and 450 transitions. [2024-01-29 14:20:24,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 168 transitions, 482 flow [2024-01-29 14:20:25,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 466 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 14:20:25,059 INFO L231 Difference]: Finished difference. Result has 171 places, 168 transitions, 348 flow [2024-01-29 14:20:25,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=171, PETRI_TRANSITIONS=168} [2024-01-29 14:20:25,063 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -62 predicate places. [2024-01-29 14:20:25,063 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 168 transitions, 348 flow [2024-01-29 14:20:25,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2024-01-29 14:20:25,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:25,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:20:25,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:20:25,064 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (and 230 more)] === [2024-01-29 14:20:25,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:25,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1459831, now seen corresponding path program 1 times [2024-01-29 14:20:25,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:25,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837672906] [2024-01-29 14:20:25,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:25,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:25,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:25,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837672906] [2024-01-29 14:20:25,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837672906] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:25,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:25,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:25,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502228064] [2024-01-29 14:20:25,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:25,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:25,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:25,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:25,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:25,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 229 [2024-01-29 14:20:25,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 168 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-01-29 14:20:25,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:25,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 229 [2024-01-29 14:20:25,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:20:31,678 INFO L124 PetriNetUnfolderBase]: 74458/106187 cut-off events. [2024-01-29 14:20:31,678 INFO L125 PetriNetUnfolderBase]: For 191/191 co-relation queries the response was YES. [2024-01-29 14:20:31,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205310 conditions, 106187 events. 74458/106187 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 16012. Compared 1007731 event pairs, 73557 based on Foata normal form. 0/44615 useless extension candidates. Maximal degree in co-relation 205269. Up to 98006 conditions per place. [2024-01-29 14:20:32,328 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 58 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2024-01-29 14:20:32,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 167 transitions, 466 flow [2024-01-29 14:20:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:20:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:20:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2024-01-29 14:20:32,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5822416302765647 [2024-01-29 14:20:32,333 INFO L175 Difference]: Start difference. First operand has 171 places, 168 transitions, 348 flow. Second operand 3 states and 400 transitions. [2024-01-29 14:20:32,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 167 transitions, 466 flow [2024-01-29 14:20:32,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 167 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:20:32,337 INFO L231 Difference]: Finished difference. Result has 170 places, 167 transitions, 346 flow [2024-01-29 14:20:32,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=170, PETRI_TRANSITIONS=167} [2024-01-29 14:20:32,338 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -63 predicate places. [2024-01-29 14:20:32,338 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 167 transitions, 346 flow [2024-01-29 14:20:32,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2024-01-29 14:20:32,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:32,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:20:32,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:20:32,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (and 230 more)] === [2024-01-29 14:20:32,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 45256183, now seen corresponding path program 1 times [2024-01-29 14:20:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:32,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376457160] [2024-01-29 14:20:32,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:32,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:32,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:32,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376457160] [2024-01-29 14:20:32,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376457160] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:32,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:32,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:32,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407827185] [2024-01-29 14:20:32,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:32,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:32,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:32,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:32,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:32,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 229 [2024-01-29 14:20:32,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 167 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-01-29 14:20:32,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:32,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 229 [2024-01-29 14:20:32,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:20:39,073 INFO L124 PetriNetUnfolderBase]: 74458/106183 cut-off events. [2024-01-29 14:20:39,073 INFO L125 PetriNetUnfolderBase]: For 191/191 co-relation queries the response was YES. [2024-01-29 14:20:39,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205308 conditions, 106183 events. 74458/106183 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 16012. Compared 1007590 event pairs, 73557 based on Foata normal form. 0/44614 useless extension candidates. Maximal degree in co-relation 205284. Up to 98003 conditions per place. [2024-01-29 14:20:39,705 INFO L140 encePairwiseOnDemand]: 223/229 looper letters, 60 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2024-01-29 14:20:39,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 462 flow [2024-01-29 14:20:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:20:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:20:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2024-01-29 14:20:39,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5676855895196506 [2024-01-29 14:20:39,707 INFO L175 Difference]: Start difference. First operand has 170 places, 167 transitions, 346 flow. Second operand 3 states and 390 transitions. [2024-01-29 14:20:39,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 462 flow [2024-01-29 14:20:39,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 163 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:20:39,715 INFO L231 Difference]: Finished difference. Result has 166 places, 163 transitions, 338 flow [2024-01-29 14:20:39,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=166, PETRI_TRANSITIONS=163} [2024-01-29 14:20:39,718 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -67 predicate places. [2024-01-29 14:20:39,718 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 163 transitions, 338 flow [2024-01-29 14:20:39,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-01-29 14:20:39,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:39,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:20:39,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:20:39,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (and 230 more)] === [2024-01-29 14:20:39,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1402942984, now seen corresponding path program 1 times [2024-01-29 14:20:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:39,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312135493] [2024-01-29 14:20:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:39,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:39,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:39,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312135493] [2024-01-29 14:20:39,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312135493] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:39,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:39,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:39,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088755049] [2024-01-29 14:20:39,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:39,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:39,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:39,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:39,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:39,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 229 [2024-01-29 14:20:39,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2024-01-29 14:20:39,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:39,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 229 [2024-01-29 14:20:39,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand