./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.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-threaded-sum-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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-threaded-sum-3.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-threaded-sum-3.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-8857f20-m [2024-01-29 22:59:23,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:59:23,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:59:23,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:59:23,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:59:23,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:59:23,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:59:23,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:59:23,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:59:23,482 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:59:23,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:59:23,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:59:23,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:59:23,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:59:23,484 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:59:23,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:59:23,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:59:23,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:59:23,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:59:23,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:59:23,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:59:23,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:59:23,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:59:23,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:59:23,487 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:59:23,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:59:23,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:59:23,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:59:23,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:59:23,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:59:23,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:59:23,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:59:23,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:23,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:59:23,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:59:23,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:59:23,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:59:23,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:59:23,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:59:23,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:59:23,491 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:59:23,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:59:23,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:59:23,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:59:23,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:59:23,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:59:23,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:59:23,741 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:59:23,741 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:59:23,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-01-29 22:59:24,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:59:25,002 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:59:25,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-01-29 22:59:25,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2a912fb/625462990b62432991fb1fd3e2259d4e/FLAGe430a9649 [2024-01-29 22:59:25,032 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da2a912fb/625462990b62432991fb1fd3e2259d4e [2024-01-29 22:59:25,035 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:59:25,036 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:59:25,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-threaded-sum-3.wvr.yml/witness.yml [2024-01-29 22:59:25,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:59:25,169 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:59:25,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:25,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:59:25,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:59:25,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:25" (1/2) ... [2024-01-29 22:59:25,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3d483d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:25, skipping insertion in model container [2024-01-29 22:59:25,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:25" (1/2) ... [2024-01-29 22:59:25,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73a08b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:25, skipping insertion in model container [2024-01-29 22:59:25,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:25" (2/2) ... [2024-01-29 22:59:25,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3d483d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25, skipping insertion in model container [2024-01-29 22:59:25,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:25" (2/2) ... [2024-01-29 22:59:25,178 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:59:25,201 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:59:25,203 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,204 INFO L98 nessWitnessExtractor]: Loop invariant at [L82-L92] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,204 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] ((1U <= S) && (c == 0U)) && (S != 0U) [2024-01-29 22:59:25,204 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] (1U <= S) && (c == 0U) [2024-01-29 22:59:25,205 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] 1U <= S [2024-01-29 22:59:25,205 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] (1U <= S) && (m == 0U) [2024-01-29 22:59:25,205 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,206 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,206 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,206 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,206 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (((t == 0U) && (m == 0U)) && (c == 0U)) && (u == 0U) [2024-01-29 22:59:25,206 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] ((t == 0U) && (m == 0U)) && (c == 0U) [2024-01-29 22:59:25,206 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (t == 0U) && (m == 0U) [2024-01-29 22:59:25,206 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] t == 0U [2024-01-29 22:59:25,207 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (1U <= t) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,207 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] ((1U <= t) && ((unsigned long )_argptr == 0UL)) && (t != 0U) [2024-01-29 22:59:25,207 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] 1U <= t [2024-01-29 22:59:25,207 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,207 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L68] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,207 INFO L98 nessWitnessExtractor]: Location invariant before [L103-L103] (s == 0U) && (t == 0U) [2024-01-29 22:59:25,207 INFO L98 nessWitnessExtractor]: Location invariant before [L103-L103] ((s == 0U) && (t == 0U)) && (c == 0U) [2024-01-29 22:59:25,208 INFO L98 nessWitnessExtractor]: Location invariant before [L103-L103] ((s == 0U) && (t == 0U)) && (m == 0U) [2024-01-29 22:59:25,208 INFO L98 nessWitnessExtractor]: Location invariant before [L103-L103] ((s == 0U) && (t == 0U)) && (u == 0U) [2024-01-29 22:59:25,208 INFO L98 nessWitnessExtractor]: Location invariant before [L103-L103] s == 0U [2024-01-29 22:59:25,208 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,208 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (t <= 4294967294U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,209 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] t <= 4294967294U [2024-01-29 22:59:25,209 INFO L98 nessWitnessExtractor]: Loop invariant at [L44-L54] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,209 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((s == 0U) && (t == 0U)) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,209 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (s == 0U) && (t == 0U) [2024-01-29 22:59:25,209 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((s == 0U) && (t == 0U)) && (u == 0U) [2024-01-29 22:59:25,209 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((s == 0U) && (t == 0U)) && (c == 0U) [2024-01-29 22:59:25,209 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((s == 0U) && (t == 0U)) && (U == 0U) [2024-01-29 22:59:25,210 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] s == 0U [2024-01-29 22:59:25,210 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((s == 0U) && (t == 0U)) && (m == 0U) [2024-01-29 22:59:25,210 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,210 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,210 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] s == 0U [2024-01-29 22:59:25,212 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (s == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,212 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,212 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,212 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] 1U <= s [2024-01-29 22:59:25,212 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (1U <= s) && (s != 0U) [2024-01-29 22:59:25,212 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (1U <= s) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,212 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,213 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] ((s <= 4294967294U) && ((unsigned long )_argptr == 0UL)) && (s != 4294967295U) [2024-01-29 22:59:25,213 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (s <= 4294967294U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,213 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] s <= 4294967294U [2024-01-29 22:59:25,213 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (t == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,213 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] t == 0U [2024-01-29 22:59:25,213 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,214 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,214 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] ((s == 0U) && (t == 0U)) && (c == 0U) [2024-01-29 22:59:25,214 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (((s == 0U) && (t == 0U)) && (c == 0U)) && (u == 0U) [2024-01-29 22:59:25,214 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (s == 0U) && (t == 0U) [2024-01-29 22:59:25,215 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (((s == 0U) && (t == 0U)) && (c == 0U)) && (U == 0U) [2024-01-29 22:59:25,215 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (((s == 0U) && (t == 0U)) && (c == 0U)) && (S == 0U) [2024-01-29 22:59:25,215 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (((s == 0U) && (t == 0U)) && (c == 0U)) && (T == 0U) [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] s == 0U [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] ((s == 0U) && (t == 0U)) && (m == 0U) [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] t <= 4294967294U [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (t <= 4294967294U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (t <= 4294967294U) && (t != 4294967295U) [2024-01-29 22:59:25,216 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,217 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,217 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,217 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,217 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,217 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] ((s == 0U) && (m == 0U)) && (c == 0U) [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (s == 0U) && (m == 0U) [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (((s == 0U) && (m == 0U)) && (c == 0U)) && (u == 0U) [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (((s == 0U) && (m == 0U)) && (c == 0U)) && (T == 0U) [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (((s == 0U) && (m == 0U)) && (c == 0U)) && (U == 0U) [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] s == 0U [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (s == 0U) && (t == 0U) [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (t == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,218 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] t == 0U [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L110-L110] (m == 0U) && (c == 0U) [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L110-L110] m == 0U [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Loop invariant at [L63-L73] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] s <= 4294967294U [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (s <= 4294967294U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L49] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] s == 0U [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (s == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:25,219 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,220 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,220 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (((s == 0U) && (t == 0U)) && (m == 0U)) && (c == 0U) [2024-01-29 22:59:25,220 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] ((s == 0U) && (t == 0U)) && (m == 0U) [2024-01-29 22:59:25,220 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] ((((s == 0U) && (t == 0U)) && (m == 0U)) && (c == 0U)) && (U == 0U) [2024-01-29 22:59:25,220 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (s == 0U) && (t == 0U) [2024-01-29 22:59:25,221 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] ((((s == 0U) && (t == 0U)) && (m == 0U)) && (c == 0U)) && (u == 0U) [2024-01-29 22:59:25,221 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] s == 0U [2024-01-29 22:59:25,221 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 22:59:25,221 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] (m == 0U) && (c == 0U) [2024-01-29 22:59:25,221 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] m == 0U [2024-01-29 22:59:25,221 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] ((m == 0U) && (c == 0U)) && (u == 0U) [2024-01-29 22:59:25,238 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:59:25,399 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-threaded-sum-3.wvr.c[2996,3009] [2024-01-29 22:59:25,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:25,408 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 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 22:59:25,567 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-threaded-sum-3.wvr.c[2996,3009] [2024-01-29 22:59:25,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:25,579 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:59:25,579 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25 WrapperNode [2024-01-29 22:59:25,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:25,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:25,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:59:25,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:59:25,602 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 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,622 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 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,652 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 122 [2024-01-29 22:59:25,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:25,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:59:25,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:59:25,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:59:25,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,689 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-29 22:59:25,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:59:25,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:59:25,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:59:25,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:59:25,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (1/1) ... [2024-01-29 22:59:25,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:25,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:59:25,780 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 22:59:25,799 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 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:59:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:59:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 22:59:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:59:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:59:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:59:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:59:25,812 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 22:59:25,889 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:59:25,891 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:59:26,357 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:59:26,358 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:59:26,639 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:59:26,639 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-29 22:59:26,640 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:26 BoogieIcfgContainer [2024-01-29 22:59:26,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:59:26,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:59:26,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:59:26,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:59:26,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:59:25" (1/4) ... [2024-01-29 22:59:26,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2b9290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:26, skipping insertion in model container [2024-01-29 22:59:26,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:25" (2/4) ... [2024-01-29 22:59:26,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2b9290 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:26, skipping insertion in model container [2024-01-29 22:59:26,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:25" (3/4) ... [2024-01-29 22:59:26,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2b9290 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:26, skipping insertion in model container [2024-01-29 22:59:26,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:26" (4/4) ... [2024-01-29 22:59:26,651 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2024-01-29 22:59:26,667 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:59:26,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 103 error locations. [2024-01-29 22:59:26,668 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:59:26,785 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-29 22:59:26,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 197 transitions, 415 flow [2024-01-29 22:59:26,875 INFO L124 PetriNetUnfolderBase]: 3/194 cut-off events. [2024-01-29 22:59:26,876 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 22:59:26,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 194 events. 3/194 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 560 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2024-01-29 22:59:26,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 197 transitions, 415 flow [2024-01-29 22:59:26,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 193 transitions, 404 flow [2024-01-29 22:59:26,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:59:26,912 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;@42d1323e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:59:26,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 169 error locations. [2024-01-29 22:59:26,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:59:26,915 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:59:26,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:59:26,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:26,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:59:26,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:26,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash 26538, now seen corresponding path program 1 times [2024-01-29 22:59:26,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:26,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084693294] [2024-01-29 22:59:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:27,268 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 22:59:27,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:27,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084693294] [2024-01-29 22:59:27,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084693294] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:27,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:27,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:59:27,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784724676] [2024-01-29 22:59:27,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:27,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:27,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:27,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:27,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 197 [2024-01-29 22:59:27,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 193 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 22:59:27,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:27,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 197 [2024-01-29 22:59:27,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:29,132 INFO L124 PetriNetUnfolderBase]: 8193/13821 cut-off events. [2024-01-29 22:59:29,132 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2024-01-29 22:59:29,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26070 conditions, 13821 events. 8193/13821 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 977. Compared 121913 event pairs, 8060 based on Foata normal form. 11/7430 useless extension candidates. Maximal degree in co-relation 24395. Up to 11794 conditions per place. [2024-01-29 22:59:29,237 INFO L140 encePairwiseOnDemand]: 155/197 looper letters, 55 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2024-01-29 22:59:29,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 153 transitions, 438 flow [2024-01-29 22:59:29,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2024-01-29 22:59:29,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-01-29 22:59:29,250 INFO L175 Difference]: Start difference. First operand has 200 places, 193 transitions, 404 flow. Second operand 3 states and 394 transitions. [2024-01-29 22:59:29,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 153 transitions, 438 flow [2024-01-29 22:59:29,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 153 transitions, 426 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 22:59:29,296 INFO L231 Difference]: Finished difference. Result has 156 places, 153 transitions, 316 flow [2024-01-29 22:59:29,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=156, PETRI_TRANSITIONS=153} [2024-01-29 22:59:29,301 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -44 predicate places. [2024-01-29 22:59:29,301 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 153 transitions, 316 flow [2024-01-29 22:59:29,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 22:59:29,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:29,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 22:59:29,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:59:29,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:29,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:29,303 INFO L85 PathProgramCache]: Analyzing trace with hash 25530052, now seen corresponding path program 1 times [2024-01-29 22:59:29,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:29,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245262997] [2024-01-29 22:59:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:29,465 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 22:59:29,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245262997] [2024-01-29 22:59:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245262997] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:29,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:29,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199099560] [2024-01-29 22:59:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:29,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:29,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:29,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 197 [2024-01-29 22:59:29,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 153 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 22:59:29,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:29,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 197 [2024-01-29 22:59:29,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:30,832 INFO L124 PetriNetUnfolderBase]: 8193/13819 cut-off events. [2024-01-29 22:59:30,833 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-01-29 22:59:30,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25790 conditions, 13819 events. 8193/13819 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 977. Compared 121824 event pairs, 8060 based on Foata normal form. 0/7421 useless extension candidates. Maximal degree in co-relation 25726. Up to 11801 conditions per place. [2024-01-29 22:59:30,907 INFO L140 encePairwiseOnDemand]: 193/197 looper letters, 67 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2024-01-29 22:59:30,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 151 transitions, 450 flow [2024-01-29 22:59:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-01-29 22:59:30,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.571912013536379 [2024-01-29 22:59:30,911 INFO L175 Difference]: Start difference. First operand has 156 places, 153 transitions, 316 flow. Second operand 3 states and 338 transitions. [2024-01-29 22:59:30,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 151 transitions, 450 flow [2024-01-29 22:59:30,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 151 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:30,916 INFO L231 Difference]: Finished difference. Result has 154 places, 151 transitions, 312 flow [2024-01-29 22:59:30,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=154, PETRI_TRANSITIONS=151} [2024-01-29 22:59:30,917 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -46 predicate places. [2024-01-29 22:59:30,917 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 151 transitions, 312 flow [2024-01-29 22:59:30,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 22:59:30,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:30,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:59:30,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:59:30,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:30,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 791432391, now seen corresponding path program 1 times [2024-01-29 22:59:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:30,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111965151] [2024-01-29 22:59:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:30,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:31,048 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 22:59:31,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:31,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111965151] [2024-01-29 22:59:31,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111965151] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:31,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:31,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:31,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994867931] [2024-01-29 22:59:31,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:31,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:31,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:31,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:31,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:31,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 197 [2024-01-29 22:59:31,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 151 transitions, 312 flow. Second operand has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 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 22:59:31,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:31,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 197 [2024-01-29 22:59:31,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:32,459 INFO L124 PetriNetUnfolderBase]: 8193/13818 cut-off events. [2024-01-29 22:59:32,459 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-01-29 22:59:32,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25797 conditions, 13818 events. 8193/13818 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 977. Compared 122041 event pairs, 8060 based on Foata normal form. 0/7428 useless extension candidates. Maximal degree in co-relation 25757. Up to 11811 conditions per place. [2024-01-29 22:59:32,785 INFO L140 encePairwiseOnDemand]: 194/197 looper letters, 75 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2024-01-29 22:59:32,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 150 transitions, 464 flow [2024-01-29 22:59:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:32,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2024-01-29 22:59:32,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5431472081218274 [2024-01-29 22:59:32,794 INFO L175 Difference]: Start difference. First operand has 154 places, 151 transitions, 312 flow. Second operand 3 states and 321 transitions. [2024-01-29 22:59:32,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 150 transitions, 464 flow [2024-01-29 22:59:32,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 150 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:32,796 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 310 flow [2024-01-29 22:59:32,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2024-01-29 22:59:32,797 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -47 predicate places. [2024-01-29 22:59:32,797 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 310 flow [2024-01-29 22:59:32,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 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 22:59:32,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:32,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:59:32,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:59:32,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:32,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:32,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1235398872, now seen corresponding path program 1 times [2024-01-29 22:59:32,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:32,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547027130] [2024-01-29 22:59:32,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:32,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:32,879 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 22:59:32,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:32,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547027130] [2024-01-29 22:59:32,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547027130] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:32,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:32,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:32,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136821482] [2024-01-29 22:59:32,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:32,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:32,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:32,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:32,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:33,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 197 [2024-01-29 22:59:33,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 22:59:33,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:33,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 197 [2024-01-29 22:59:33,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:34,073 INFO L124 PetriNetUnfolderBase]: 8193/13817 cut-off events. [2024-01-29 22:59:34,074 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-01-29 22:59:34,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25794 conditions, 13817 events. 8193/13817 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 977. Compared 121953 event pairs, 8060 based on Foata normal form. 0/7425 useless extension candidates. Maximal degree in co-relation 25771. Up to 11799 conditions per place. [2024-01-29 22:59:34,157 INFO L140 encePairwiseOnDemand]: 194/197 looper letters, 73 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2024-01-29 22:59:34,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 149 transitions, 458 flow [2024-01-29 22:59:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:34,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2024-01-29 22:59:34,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5499153976311336 [2024-01-29 22:59:34,159 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 310 flow. Second operand 3 states and 325 transitions. [2024-01-29 22:59:34,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 149 transitions, 458 flow [2024-01-29 22:59:34,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 149 transitions, 454 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:34,162 INFO L231 Difference]: Finished difference. Result has 152 places, 149 transitions, 308 flow [2024-01-29 22:59:34,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=152, PETRI_TRANSITIONS=149} [2024-01-29 22:59:34,164 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -48 predicate places. [2024-01-29 22:59:34,164 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 149 transitions, 308 flow [2024-01-29 22:59:34,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 22:59:34,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:34,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:34,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:59:34,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:34,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1807316205, now seen corresponding path program 1 times [2024-01-29 22:59:34,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:34,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3616480] [2024-01-29 22:59:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:34,260 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 22:59:34,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:34,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3616480] [2024-01-29 22:59:34,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3616480] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:34,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:34,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:34,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272430435] [2024-01-29 22:59:34,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:34,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:34,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:34,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:34,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:34,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 197 [2024-01-29 22:59:34,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 149 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 22:59:34,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:34,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 197 [2024-01-29 22:59:34,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:35,614 INFO L124 PetriNetUnfolderBase]: 8193/13814 cut-off events. [2024-01-29 22:59:35,614 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-01-29 22:59:35,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25790 conditions, 13814 events. 8193/13814 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 977. Compared 121980 event pairs, 8060 based on Foata normal form. 0/7423 useless extension candidates. Maximal degree in co-relation 25738. Up to 11789 conditions per place. [2024-01-29 22:59:35,666 INFO L140 encePairwiseOnDemand]: 191/197 looper letters, 71 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2024-01-29 22:59:35,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 146 transitions, 450 flow [2024-01-29 22:59:35,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 405 transitions. [2024-01-29 22:59:35,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5139593908629442 [2024-01-29 22:59:35,668 INFO L175 Difference]: Start difference. First operand has 152 places, 149 transitions, 308 flow. Second operand 4 states and 405 transitions. [2024-01-29 22:59:35,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 146 transitions, 450 flow [2024-01-29 22:59:35,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 146 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:35,670 INFO L231 Difference]: Finished difference. Result has 150 places, 146 transitions, 304 flow [2024-01-29 22:59:35,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=304, PETRI_PLACES=150, PETRI_TRANSITIONS=146} [2024-01-29 22:59:35,673 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -50 predicate places. [2024-01-29 22:59:35,673 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 146 transitions, 304 flow [2024-01-29 22:59:35,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 22:59:35,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:35,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:35,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:59:35,673 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:35,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:35,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1431331845, now seen corresponding path program 1 times [2024-01-29 22:59:35,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:35,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172280695] [2024-01-29 22:59:35,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:35,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:35,745 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 22:59:35,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:35,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172280695] [2024-01-29 22:59:35,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172280695] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:35,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:35,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:35,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616246600] [2024-01-29 22:59:35,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:35,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:35,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:35,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:35,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:35,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2024-01-29 22:59:35,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 146 transitions, 304 flow. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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 22:59:35,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:35,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2024-01-29 22:59:35,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:37,747 INFO L124 PetriNetUnfolderBase]: 12231/22366 cut-off events. [2024-01-29 22:59:37,748 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-29 22:59:37,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40083 conditions, 22366 events. 12231/22366 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 1379. Compared 216161 event pairs, 3972 based on Foata normal form. 0/13238 useless extension candidates. Maximal degree in co-relation 40006. Up to 8161 conditions per place. [2024-01-29 22:59:37,866 INFO L140 encePairwiseOnDemand]: 187/197 looper letters, 127 selfloop transitions, 9 changer transitions 0/206 dead transitions. [2024-01-29 22:59:37,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 206 transitions, 703 flow [2024-01-29 22:59:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:59:37,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:59:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 573 transitions. [2024-01-29 22:59:37,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.581725888324873 [2024-01-29 22:59:37,868 INFO L175 Difference]: Start difference. First operand has 150 places, 146 transitions, 304 flow. Second operand 5 states and 573 transitions. [2024-01-29 22:59:37,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 206 transitions, 703 flow [2024-01-29 22:59:37,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 206 transitions, 697 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:59:37,871 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 318 flow [2024-01-29 22:59:37,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2024-01-29 22:59:37,872 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -51 predicate places. [2024-01-29 22:59:37,872 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 318 flow [2024-01-29 22:59:37,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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 22:59:37,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:37,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:37,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:59:37,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:37,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:37,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1421613363, now seen corresponding path program 1 times [2024-01-29 22:59:37,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:37,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801635915] [2024-01-29 22:59:37,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:37,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:37,925 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 22:59:37,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:37,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801635915] [2024-01-29 22:59:37,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801635915] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:37,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:37,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:37,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887169097] [2024-01-29 22:59:37,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:37,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:37,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:37,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:37,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:38,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2024-01-29 22:59:38,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 22:59:38,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:38,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2024-01-29 22:59:38,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:39,775 INFO L124 PetriNetUnfolderBase]: 12927/23702 cut-off events. [2024-01-29 22:59:39,775 INFO L125 PetriNetUnfolderBase]: For 935/967 co-relation queries the response was YES. [2024-01-29 22:59:39,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43912 conditions, 23702 events. 12927/23702 cut-off events. For 935/967 co-relation queries the response was YES. Maximal size of possible extension queue 1353. Compared 224965 event pairs, 4770 based on Foata normal form. 3/14758 useless extension candidates. Maximal degree in co-relation 4508. Up to 9912 conditions per place. [2024-01-29 22:59:39,908 INFO L140 encePairwiseOnDemand]: 188/197 looper letters, 96 selfloop transitions, 9 changer transitions 0/181 dead transitions. [2024-01-29 22:59:39,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 181 transitions, 603 flow [2024-01-29 22:59:39,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:39,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:39,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 481 transitions. [2024-01-29 22:59:39,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6104060913705583 [2024-01-29 22:59:39,910 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 318 flow. Second operand 4 states and 481 transitions. [2024-01-29 22:59:39,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 181 transitions, 603 flow [2024-01-29 22:59:39,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 181 transitions, 601 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:59:39,914 INFO L231 Difference]: Finished difference. Result has 150 places, 145 transitions, 332 flow [2024-01-29 22:59:39,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=332, PETRI_PLACES=150, PETRI_TRANSITIONS=145} [2024-01-29 22:59:39,915 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -50 predicate places. [2024-01-29 22:59:39,915 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 145 transitions, 332 flow [2024-01-29 22:59:39,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 22:59:39,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:39,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:39,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:59:39,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:39,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:39,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1120340580, now seen corresponding path program 1 times [2024-01-29 22:59:39,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:39,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249587554] [2024-01-29 22:59:39,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:39,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:40,003 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 22:59:40,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:40,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249587554] [2024-01-29 22:59:40,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249587554] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:40,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:40,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:40,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431292148] [2024-01-29 22:59:40,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:40,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:40,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:40,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:40,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:40,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 197 [2024-01-29 22:59:40,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 145 transitions, 332 flow. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 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 22:59:40,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:40,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 197 [2024-01-29 22:59:40,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:42,112 INFO L124 PetriNetUnfolderBase]: 15597/28855 cut-off events. [2024-01-29 22:59:42,113 INFO L125 PetriNetUnfolderBase]: For 2328/2386 co-relation queries the response was YES. [2024-01-29 22:59:42,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54695 conditions, 28855 events. 15597/28855 cut-off events. For 2328/2386 co-relation queries the response was YES. Maximal size of possible extension queue 1569. Compared 283224 event pairs, 4310 based on Foata normal form. 8/18314 useless extension candidates. Maximal degree in co-relation 5434. Up to 8530 conditions per place. [2024-01-29 22:59:42,427 INFO L140 encePairwiseOnDemand]: 188/197 looper letters, 165 selfloop transitions, 10 changer transitions 0/241 dead transitions. [2024-01-29 22:59:42,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 241 transitions, 890 flow [2024-01-29 22:59:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:59:42,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:59:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 601 transitions. [2024-01-29 22:59:42,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6101522842639594 [2024-01-29 22:59:42,429 INFO L175 Difference]: Start difference. First operand has 150 places, 145 transitions, 332 flow. Second operand 5 states and 601 transitions. [2024-01-29 22:59:42,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 241 transitions, 890 flow [2024-01-29 22:59:42,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 241 transitions, 879 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:42,434 INFO L231 Difference]: Finished difference. Result has 152 places, 146 transitions, 354 flow [2024-01-29 22:59:42,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=152, PETRI_TRANSITIONS=146} [2024-01-29 22:59:42,437 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -48 predicate places. [2024-01-29 22:59:42,437 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 146 transitions, 354 flow [2024-01-29 22:59:42,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 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 22:59:42,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:42,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:42,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:59:42,438 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:42,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:42,438 INFO L85 PathProgramCache]: Analyzing trace with hash -407581332, now seen corresponding path program 1 times [2024-01-29 22:59:42,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998271671] [2024-01-29 22:59:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:42,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:42,552 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 22:59:42,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998271671] [2024-01-29 22:59:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998271671] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778364839] [2024-01-29 22:59:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:42,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:42,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:42,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 197 [2024-01-29 22:59:42,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 146 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 22:59:42,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:42,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 197 [2024-01-29 22:59:42,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:45,741 INFO L124 PetriNetUnfolderBase]: 21683/41467 cut-off events. [2024-01-29 22:59:45,741 INFO L125 PetriNetUnfolderBase]: For 7016/7088 co-relation queries the response was YES. [2024-01-29 22:59:45,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80228 conditions, 41467 events. 21683/41467 cut-off events. For 7016/7088 co-relation queries the response was YES. Maximal size of possible extension queue 2284. Compared 443849 event pairs, 7084 based on Foata normal form. 13/28753 useless extension candidates. Maximal degree in co-relation 14333. Up to 13846 conditions per place. [2024-01-29 22:59:45,936 INFO L140 encePairwiseOnDemand]: 185/197 looper letters, 169 selfloop transitions, 11 changer transitions 0/241 dead transitions. [2024-01-29 22:59:45,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 241 transitions, 947 flow [2024-01-29 22:59:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:59:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:59:45,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 525 transitions. [2024-01-29 22:59:45,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5329949238578681 [2024-01-29 22:59:45,938 INFO L175 Difference]: Start difference. First operand has 152 places, 146 transitions, 354 flow. Second operand 5 states and 525 transitions. [2024-01-29 22:59:45,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 241 transitions, 947 flow [2024-01-29 22:59:45,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 241 transitions, 931 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:45,951 INFO L231 Difference]: Finished difference. Result has 155 places, 149 transitions, 406 flow [2024-01-29 22:59:45,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=155, PETRI_TRANSITIONS=149} [2024-01-29 22:59:45,952 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -45 predicate places. [2024-01-29 22:59:45,952 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 149 transitions, 406 flow [2024-01-29 22:59:45,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 22:59:45,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:45,953 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] [2024-01-29 22:59:45,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:59:45,953 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:45,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:45,953 INFO L85 PathProgramCache]: Analyzing trace with hash -843612133, now seen corresponding path program 1 times [2024-01-29 22:59:45,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:45,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142973775] [2024-01-29 22:59:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:46,044 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 22:59:46,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:46,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142973775] [2024-01-29 22:59:46,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142973775] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:46,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863040179] [2024-01-29 22:59:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:46,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:46,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:46,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:46,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:46,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 197 [2024-01-29 22:59:46,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 149 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 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 22:59:46,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:46,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 197 [2024-01-29 22:59:46,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:49,298 INFO L124 PetriNetUnfolderBase]: 21727/41880 cut-off events. [2024-01-29 22:59:49,299 INFO L125 PetriNetUnfolderBase]: For 18149/18451 co-relation queries the response was YES. [2024-01-29 22:59:49,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85889 conditions, 41880 events. 21727/41880 cut-off events. For 18149/18451 co-relation queries the response was YES. Maximal size of possible extension queue 2349. Compared 454261 event pairs, 8850 based on Foata normal form. 83/30897 useless extension candidates. Maximal degree in co-relation 64103. Up to 15892 conditions per place. [2024-01-29 22:59:49,712 INFO L140 encePairwiseOnDemand]: 188/197 looper letters, 134 selfloop transitions, 10 changer transitions 0/207 dead transitions. [2024-01-29 22:59:49,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 207 transitions, 841 flow [2024-01-29 22:59:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:59:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:59:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 500 transitions. [2024-01-29 22:59:49,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5076142131979695 [2024-01-29 22:59:49,714 INFO L175 Difference]: Start difference. First operand has 155 places, 149 transitions, 406 flow. Second operand 5 states and 500 transitions. [2024-01-29 22:59:49,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 207 transitions, 841 flow [2024-01-29 22:59:49,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 207 transitions, 841 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:59:49,776 INFO L231 Difference]: Finished difference. Result has 158 places, 148 transitions, 424 flow [2024-01-29 22:59:49,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=424, PETRI_PLACES=158, PETRI_TRANSITIONS=148} [2024-01-29 22:59:49,777 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -42 predicate places. [2024-01-29 22:59:49,777 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 148 transitions, 424 flow [2024-01-29 22:59:49,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 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 22:59:49,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:49,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:49,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:59:49,778 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:49,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:49,779 INFO L85 PathProgramCache]: Analyzing trace with hash -603621362, now seen corresponding path program 1 times [2024-01-29 22:59:49,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:49,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063147132] [2024-01-29 22:59:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:49,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:49,806 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 22:59:49,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:49,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063147132] [2024-01-29 22:59:49,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063147132] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:49,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:49,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:49,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848979285] [2024-01-29 22:59:49,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:49,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:49,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:49,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:49,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:49,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 197 [2024-01-29 22:59:49,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 148 transitions, 424 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 22:59:49,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:49,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 197 [2024-01-29 22:59:49,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:53,924 INFO L124 PetriNetUnfolderBase]: 28773/55269 cut-off events. [2024-01-29 22:59:53,924 INFO L125 PetriNetUnfolderBase]: For 32060/32608 co-relation queries the response was YES. [2024-01-29 22:59:54,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115664 conditions, 55269 events. 28773/55269 cut-off events. For 32060/32608 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 612388 event pairs, 9555 based on Foata normal form. 311/41883 useless extension candidates. Maximal degree in co-relation 89293. Up to 29258 conditions per place. [2024-01-29 22:59:54,326 INFO L140 encePairwiseOnDemand]: 184/197 looper letters, 110 selfloop transitions, 14 changer transitions 0/192 dead transitions. [2024-01-29 22:59:54,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 192 transitions, 825 flow [2024-01-29 22:59:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:54,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:54,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2024-01-29 22:59:54,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6835871404399323 [2024-01-29 22:59:54,328 INFO L175 Difference]: Start difference. First operand has 158 places, 148 transitions, 424 flow. Second operand 3 states and 404 transitions. [2024-01-29 22:59:54,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 192 transitions, 825 flow [2024-01-29 22:59:54,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 192 transitions, 805 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:59:54,390 INFO L231 Difference]: Finished difference. Result has 158 places, 156 transitions, 533 flow [2024-01-29 22:59:54,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=158, PETRI_TRANSITIONS=156} [2024-01-29 22:59:54,391 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -42 predicate places. [2024-01-29 22:59:54,391 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 156 transitions, 533 flow [2024-01-29 22:59:54,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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 22:59:54,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:54,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:54,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 22:59:54,392 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 22:59:54,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1532392139, now seen corresponding path program 1 times [2024-01-29 22:59:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:54,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341872596] [2024-01-29 22:59:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:54,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:54,430 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 22:59:54,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:54,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341872596] [2024-01-29 22:59:54,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341872596] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:54,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:54,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:54,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690050407] [2024-01-29 22:59:54,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:54,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:54,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:54,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:54,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:54,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 197 [2024-01-29 22:59:54,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 156 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 22:59:54,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:54,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 197 [2024-01-29 22:59:54,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:59,926 INFO L124 PetriNetUnfolderBase]: 36310/65676 cut-off events. [2024-01-29 22:59:59,927 INFO L125 PetriNetUnfolderBase]: For 51839/53578 co-relation queries the response was YES. [2024-01-29 23:00:00,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149153 conditions, 65676 events. 36310/65676 cut-off events. For 51839/53578 co-relation queries the response was YES. Maximal size of possible extension queue 3446. Compared 696990 event pairs, 18813 based on Foata normal form. 66/49623 useless extension candidates. Maximal degree in co-relation 118695. Up to 38702 conditions per place. [2024-01-29 23:00:00,659 INFO L140 encePairwiseOnDemand]: 188/197 looper letters, 105 selfloop transitions, 14 changer transitions 0/194 dead transitions. [2024-01-29 23:00:00,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 907 flow [2024-01-29 23:00:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 23:00:00,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 23:00:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 408 transitions. [2024-01-29 23:00:00,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6903553299492385 [2024-01-29 23:00:00,661 INFO L175 Difference]: Start difference. First operand has 158 places, 156 transitions, 533 flow. Second operand 3 states and 408 transitions. [2024-01-29 23:00:00,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 907 flow [2024-01-29 23:00:00,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 194 transitions, 873 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:00,749 INFO L231 Difference]: Finished difference. Result has 158 places, 158 transitions, 567 flow [2024-01-29 23:00:00,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=567, PETRI_PLACES=158, PETRI_TRANSITIONS=158} [2024-01-29 23:00:00,750 INFO L281 CegarLoopForPetriNet]: 200 programPoint places, -42 predicate places. [2024-01-29 23:00:00,750 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 158 transitions, 567 flow [2024-01-29 23:00:00,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 23:00:00,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:00,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:00,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 23:00:00,751 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 166 more)] === [2024-01-29 23:00:00,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:00,751 INFO L85 PathProgramCache]: Analyzing trace with hash -259515152, now seen corresponding path program 1 times [2024-01-29 23:00:00,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090084443] [2024-01-29 23:00:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:00,817 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 23:00:00,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:00,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090084443] [2024-01-29 23:00:00,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090084443] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:00,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:00,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:00,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529896531] [2024-01-29 23:00:00,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:00,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:00,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:00,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:00,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:00,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 197 [2024-01-29 23:00:00,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 158 transitions, 567 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 23:00:00,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:00,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 197 [2024-01-29 23:00:00,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand