./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.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-more-nonblocking-counter-alt2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-nonblocking-counter-alt2.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 14:52:17,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:52:17,475 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:52:17,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:52:17,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:52:17,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:52:17,495 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:52:17,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:52:17,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:52:17,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:52:17,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:52:17,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:52:17,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:52:17,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:52:17,498 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:52:17,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:52:17,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:52:17,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:52:17,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:52:17,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:52:17,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:52:17,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:52:17,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:52:17,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:52:17,501 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:52:17,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:52:17,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:52:17,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:52:17,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:52:17,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:52:17,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:52:17,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:52:17,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:52:17,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:52:17,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:52:17,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:52:17,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:52:17,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:52:17,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:52:17,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:52:17,505 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:52:17,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:52:17,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:52:17,521 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:52:17,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:52:17,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:52:17,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:52:17,773 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:52:17,773 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:52:17,774 INFO L431 ainManager$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-more-nonblocking-counter-alt2.wvr.yml/witness.yml [2024-01-27 14:52:17,931 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:52:17,932 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:52:17,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-27 14:52:19,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:52:19,167 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:52:19,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-27 14:52:19,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205346bf1/20559dbf69294b509fee76b410b500bd/FLAGd28c6dd7e [2024-01-27 14:52:19,184 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205346bf1/20559dbf69294b509fee76b410b500bd [2024-01-27 14:52:19,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:52:19,185 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:52:19,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:52:19,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:52:19,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:52:19,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:17" (1/2) ... [2024-01-27 14:52:19,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fb1e13 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:52:19, skipping insertion in model container [2024-01-27 14:52:19,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:17" (1/2) ... [2024-01-27 14:52:19,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@11b66145 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:52:19, skipping insertion in model container [2024-01-27 14:52:19,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:52:19" (2/2) ... [2024-01-27 14:52:19,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fb1e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19, skipping insertion in model container [2024-01-27 14:52:19,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:52:19" (2/2) ... [2024-01-27 14:52:19,193 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:52:19,212 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:52:19,213 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (long long )M + (long long )counter >= 0LL [2024-01-27 14:52:19,223 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (long long )M - (long long )counter >= 0LL [2024-01-27 14:52:19,227 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] M == 0U [2024-01-27 14:52:19,227 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (0LL - (long long )M) + (long long )counter >= 0LL [2024-01-27 14:52:19,227 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] counter == 0U [2024-01-27 14:52:19,227 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (0LL - (long long )M) - (long long )counter >= 0LL [2024-01-27 14:52:19,227 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (long long )M + (long long )counter >= 0LL [2024-01-27 14:52:19,228 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (((((((((((i == 11U || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (12U <= i && i <= 4294967294U) [2024-01-27 14:52:19,230 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )M) + (long long )counter >= 0LL [2024-01-27 14:52:19,230 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] counter == 0U [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )M) - (long long )counter >= 0LL [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (long long )M - (long long )counter >= 0LL [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] M == 0U [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (((((((((((i == 11U || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (12U <= i && i <= 4294967294U) [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,231 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,232 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (((((((((((i <= 8U || i <= 7U) || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U [2024-01-27 14:52:19,232 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] counter == 0U [2024-01-27 14:52:19,232 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,232 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,233 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L59] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,233 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L57] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,233 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L57] (((((((((((i <= 8U || i <= 7U) || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U [2024-01-27 14:52:19,233 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,233 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] 1U <= counter [2024-01-27 14:52:19,233 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] counter != 0U [2024-01-27 14:52:19,233 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (((((((((((i <= 7U || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U) || i <= 8U [2024-01-27 14:52:19,234 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,234 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (((((((((((i <= 7U || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U) || i <= 8U [2024-01-27 14:52:19,234 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,234 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,234 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (((((((((((i == 11U || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 12U <= i [2024-01-27 14:52:19,234 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] counter == 0U [2024-01-27 14:52:19,235 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] counter == 0U [2024-01-27 14:52:19,235 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )M - (long long )counter >= 0LL [2024-01-27 14:52:19,235 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )M) - (long long )counter >= 0LL [2024-01-27 14:52:19,236 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] M == 0U [2024-01-27 14:52:19,237 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] C == 0U [2024-01-27 14:52:19,237 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )M) + (long long )counter >= 0LL [2024-01-27 14:52:19,237 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )M + (long long )counter >= 0LL [2024-01-27 14:52:19,237 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 14:52:19,237 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (((((((((((i == 11U || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (12U <= i && i <= 4294967294U) [2024-01-27 14:52:19,254 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:52:19,407 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-more-nonblocking-counter-alt2.wvr.c[2173,2186] [2024-01-27 14:52:19,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:52:19,423 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 [2024-01-27 14:52:19,520 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-more-nonblocking-counter-alt2.wvr.c[2173,2186] [2024-01-27 14:52:19,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:52:19,532 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:52:19,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19 WrapperNode [2024-01-27 14:52:19,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:52:19,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:52:19,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:52:19,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:52:19,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,574 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-01-27 14:52:19,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:52:19,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:52:19,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:52:19,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:52:19,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,610 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-27 14:52:19,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:52:19,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:52:19,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:52:19,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:52:19,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (1/1) ... [2024-01-27 14:52:19,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:52:19,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:52:19,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 14:52:19,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 14:52:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:52:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:52:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:52:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:52:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:52:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:52:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:52:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:52:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:52:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:52:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:52:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:52:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 14:52:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 14:52:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:52:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:52:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:52:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:52:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:52:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:52:19,701 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:52:19,798 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:52:19,800 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:52:20,133 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:52:20,134 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:52:20,351 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:52:20,351 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-27 14:52:20,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:52:20 BoogieIcfgContainer [2024-01-27 14:52:20,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:52:20,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:52:20,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:52:20,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:52:20,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:17" (1/4) ... [2024-01-27 14:52:20,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79935e9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:52:20, skipping insertion in model container [2024-01-27 14:52:20,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:52:19" (2/4) ... [2024-01-27 14:52:20,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79935e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:52:20, skipping insertion in model container [2024-01-27 14:52:20,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:19" (3/4) ... [2024-01-27 14:52:20,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79935e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:52:20, skipping insertion in model container [2024-01-27 14:52:20,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:52:20" (4/4) ... [2024-01-27 14:52:20,364 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-27 14:52:20,378 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:52:20,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2024-01-27 14:52:20,378 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:52:20,463 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 14:52:20,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 97 transitions, 208 flow [2024-01-27 14:52:20,538 INFO L124 PetriNetUnfolderBase]: 2/95 cut-off events. [2024-01-27 14:52:20,538 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:52:20,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 95 events. 2/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 257 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2024-01-27 14:52:20,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 97 transitions, 208 flow [2024-01-27 14:52:20,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 94 transitions, 200 flow [2024-01-27 14:52:20,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:52:20,562 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;@775eee9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:52:20,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-01-27 14:52:20,565 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:52:20,565 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:52:20,565 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:52:20,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:20,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:52:20,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:20,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:20,572 INFO L85 PathProgramCache]: Analyzing trace with hash 13949, now seen corresponding path program 1 times [2024-01-27 14:52:20,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:20,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219048866] [2024-01-27 14:52:20,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:20,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:20,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:20,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219048866] [2024-01-27 14:52:20,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219048866] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:20,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:20,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:52:20,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325555374] [2024-01-27 14:52:20,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:20,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-27 14:52:20,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-27 14:52:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-27 14:52:20,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 97 [2024-01-27 14:52:20,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 200 flow. Second operand has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:20,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:20,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 97 [2024-01-27 14:52:20,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:52:20,996 INFO L124 PetriNetUnfolderBase]: 306/731 cut-off events. [2024-01-27 14:52:20,997 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-27 14:52:21,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 731 events. 306/731 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4644 event pairs, 207 based on Foata normal form. 32/474 useless extension candidates. Maximal degree in co-relation 1136. Up to 479 conditions per place. [2024-01-27 14:52:21,006 INFO L140 encePairwiseOnDemand]: 80/97 looper letters, 28 selfloop transitions, 0 changer transitions 0/77 dead transitions. [2024-01-27 14:52:21,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 77 transitions, 222 flow [2024-01-27 14:52:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-27 14:52:21,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-01-27 14:52:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 147 transitions. [2024-01-27 14:52:21,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7577319587628866 [2024-01-27 14:52:21,017 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 200 flow. Second operand 2 states and 147 transitions. [2024-01-27 14:52:21,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 77 transitions, 222 flow [2024-01-27 14:52:21,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 214 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 14:52:21,025 INFO L231 Difference]: Finished difference. Result has 79 places, 77 transitions, 158 flow [2024-01-27 14:52:21,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=158, PETRI_PLACES=79, PETRI_TRANSITIONS=77} [2024-01-27 14:52:21,029 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -20 predicate places. [2024-01-27 14:52:21,030 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 77 transitions, 158 flow [2024-01-27 14:52:21,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:21,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:52:21,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:52:21,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:21,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash 432897, now seen corresponding path program 1 times [2024-01-27 14:52:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:21,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327428252] [2024-01-27 14:52:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:21,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:21,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327428252] [2024-01-27 14:52:21,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327428252] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:21,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:21,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:52:21,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948624151] [2024-01-27 14:52:21,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:21,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:52:21,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:21,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:52:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:52:21,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 97 [2024-01-27 14:52:21,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 77 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:21,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 97 [2024-01-27 14:52:21,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:52:21,377 INFO L124 PetriNetUnfolderBase]: 305/692 cut-off events. [2024-01-27 14:52:21,378 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 14:52:21,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1225 conditions, 692 events. 305/692 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4484 event pairs, 261 based on Foata normal form. 9/435 useless extension candidates. Maximal degree in co-relation 1222. Up to 517 conditions per place. [2024-01-27 14:52:21,381 INFO L140 encePairwiseOnDemand]: 85/97 looper letters, 30 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-01-27 14:52:21,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 202 flow [2024-01-27 14:52:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:52:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:52:21,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-01-27 14:52:21,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5257731958762887 [2024-01-27 14:52:21,384 INFO L175 Difference]: Start difference. First operand has 79 places, 77 transitions, 158 flow. Second operand 3 states and 153 transitions. [2024-01-27 14:52:21,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 202 flow [2024-01-27 14:52:21,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 67 transitions, 202 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:52:21,386 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 142 flow [2024-01-27 14:52:21,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-01-27 14:52:21,387 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -28 predicate places. [2024-01-27 14:52:21,387 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 142 flow [2024-01-27 14:52:21,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:21,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 14:52:21,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:52:21,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:21,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:21,388 INFO L85 PathProgramCache]: Analyzing trace with hash 13420239, now seen corresponding path program 1 times [2024-01-27 14:52:21,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:21,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613935994] [2024-01-27 14:52:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:21,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:21,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:21,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613935994] [2024-01-27 14:52:21,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613935994] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:21,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:21,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:52:21,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280338643] [2024-01-27 14:52:21,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:21,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:52:21,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:21,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:52:21,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:52:21,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 97 [2024-01-27 14:52:21,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:21,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 97 [2024-01-27 14:52:21,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:52:21,542 INFO L124 PetriNetUnfolderBase]: 306/720 cut-off events. [2024-01-27 14:52:21,543 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:52:21,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 720 events. 306/720 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4611 event pairs, 207 based on Foata normal form. 1/442 useless extension candidates. Maximal degree in co-relation 1211. Up to 478 conditions per place. [2024-01-27 14:52:21,547 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 26 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-01-27 14:52:21,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 66 transitions, 196 flow [2024-01-27 14:52:21,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:52:21,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:52:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-01-27 14:52:21,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6151202749140894 [2024-01-27 14:52:21,549 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 142 flow. Second operand 3 states and 179 transitions. [2024-01-27 14:52:21,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 66 transitions, 196 flow [2024-01-27 14:52:21,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 66 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:52:21,550 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 140 flow [2024-01-27 14:52:21,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-01-27 14:52:21,551 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-01-27 14:52:21,551 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 140 flow [2024-01-27 14:52:21,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:21,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:52:21,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:52:21,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:21,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash 440542379, now seen corresponding path program 1 times [2024-01-27 14:52:21,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:21,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433611230] [2024-01-27 14:52:21,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:21,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:21,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:21,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433611230] [2024-01-27 14:52:21,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433611230] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:21,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:21,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:52:21,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341675657] [2024-01-27 14:52:21,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:21,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:52:21,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:21,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:52:21,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:52:21,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 97 [2024-01-27 14:52:21,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:21,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 97 [2024-01-27 14:52:21,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:52:21,793 INFO L124 PetriNetUnfolderBase]: 336/811 cut-off events. [2024-01-27 14:52:21,794 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:52:21,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 811 events. 336/811 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5475 event pairs, 144 based on Foata normal form. 1/541 useless extension candidates. Maximal degree in co-relation 1404. Up to 311 conditions per place. [2024-01-27 14:52:21,798 INFO L140 encePairwiseOnDemand]: 89/97 looper letters, 44 selfloop transitions, 4 changer transitions 1/82 dead transitions. [2024-01-27 14:52:21,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 82 transitions, 273 flow [2024-01-27 14:52:21,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:52:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:52:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-01-27 14:52:21,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6151202749140894 [2024-01-27 14:52:21,803 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 140 flow. Second operand 3 states and 179 transitions. [2024-01-27 14:52:21,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 82 transitions, 273 flow [2024-01-27 14:52:21,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 82 transitions, 269 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:52:21,807 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 164 flow [2024-01-27 14:52:21,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2024-01-27 14:52:21,809 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-01-27 14:52:21,809 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 164 flow [2024-01-27 14:52:21,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:21,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:52:21,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:52:21,810 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:21,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:21,811 INFO L85 PathProgramCache]: Analyzing trace with hash 786547845, now seen corresponding path program 1 times [2024-01-27 14:52:21,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:21,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290134822] [2024-01-27 14:52:21,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:21,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:21,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:21,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290134822] [2024-01-27 14:52:21,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290134822] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:21,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:21,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:52:21,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26501719] [2024-01-27 14:52:21,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:21,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:52:21,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:21,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:52:21,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:52:21,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-01-27 14:52:21,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:21,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:21,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-01-27 14:52:21,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:52:22,078 INFO L124 PetriNetUnfolderBase]: 294/737 cut-off events. [2024-01-27 14:52:22,078 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-01-27 14:52:22,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 737 events. 294/737 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4809 event pairs, 6 based on Foata normal form. 64/689 useless extension candidates. Maximal degree in co-relation 1386. Up to 494 conditions per place. [2024-01-27 14:52:22,082 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 36 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2024-01-27 14:52:22,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 241 flow [2024-01-27 14:52:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:52:22,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:52:22,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 229 transitions. [2024-01-27 14:52:22,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5902061855670103 [2024-01-27 14:52:22,083 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 164 flow. Second operand 4 states and 229 transitions. [2024-01-27 14:52:22,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 241 flow [2024-01-27 14:52:22,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:52:22,085 INFO L231 Difference]: Finished difference. Result has 66 places, 61 transitions, 144 flow [2024-01-27 14:52:22,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=66, PETRI_TRANSITIONS=61} [2024-01-27 14:52:22,086 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -33 predicate places. [2024-01-27 14:52:22,086 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 144 flow [2024-01-27 14:52:22,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:22,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:22,087 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] [2024-01-27 14:52:22,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:52:22,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:22,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:22,087 INFO L85 PathProgramCache]: Analyzing trace with hash -44406471, now seen corresponding path program 1 times [2024-01-27 14:52:22,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:22,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435519490] [2024-01-27 14:52:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:22,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:22,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:22,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435519490] [2024-01-27 14:52:22,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435519490] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:22,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:22,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:52:22,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091483316] [2024-01-27 14:52:22,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:22,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:52:22,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:22,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:52:22,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:52:22,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 97 [2024-01-27 14:52:22,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:22,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:22,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 97 [2024-01-27 14:52:22,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:52:22,294 INFO L124 PetriNetUnfolderBase]: 321/725 cut-off events. [2024-01-27 14:52:22,294 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-01-27 14:52:22,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 725 events. 321/725 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4300 event pairs, 11 based on Foata normal form. 84/679 useless extension candidates. Maximal degree in co-relation 1358. Up to 423 conditions per place. [2024-01-27 14:52:22,297 INFO L140 encePairwiseOnDemand]: 89/97 looper letters, 50 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2024-01-27 14:52:22,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 307 flow [2024-01-27 14:52:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:52:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:52:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2024-01-27 14:52:22,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5979381443298969 [2024-01-27 14:52:22,298 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 144 flow. Second operand 4 states and 232 transitions. [2024-01-27 14:52:22,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 307 flow [2024-01-27 14:52:22,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:52:22,302 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 133 flow [2024-01-27 14:52:22,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-01-27 14:52:22,304 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -38 predicate places. [2024-01-27 14:52:22,305 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 133 flow [2024-01-27 14:52:22,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:22,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:22,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:52:22,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:52:22,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:22,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:22,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1466207606, now seen corresponding path program 1 times [2024-01-27 14:52:22,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:22,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10902199] [2024-01-27 14:52:22,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:22,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:22,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:22,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10902199] [2024-01-27 14:52:22,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10902199] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:22,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:22,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:52:22,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157494202] [2024-01-27 14:52:22,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:22,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:52:22,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:22,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:52:22,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:52:22,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2024-01-27 14:52:22,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:22,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:22,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2024-01-27 14:52:22,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:52:22,554 INFO L124 PetriNetUnfolderBase]: 295/631 cut-off events. [2024-01-27 14:52:22,554 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-01-27 14:52:22,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1262 conditions, 631 events. 295/631 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3517 event pairs, 115 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 1257. Up to 302 conditions per place. [2024-01-27 14:52:22,557 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 34 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-01-27 14:52:22,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 222 flow [2024-01-27 14:52:22,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:52:22,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:52:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2024-01-27 14:52:22,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6288659793814433 [2024-01-27 14:52:22,558 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 133 flow. Second operand 3 states and 183 transitions. [2024-01-27 14:52:22,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 222 flow [2024-01-27 14:52:22,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:52:22,560 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 144 flow [2024-01-27 14:52:22,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-01-27 14:52:22,560 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -38 predicate places. [2024-01-27 14:52:22,561 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 144 flow [2024-01-27 14:52:22,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:22,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:22,561 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] [2024-01-27 14:52:22,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:52:22,561 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-27 14:52:22,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1792204977, now seen corresponding path program 1 times [2024-01-27 14:52:22,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:22,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235748236] [2024-01-27 14:52:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:22,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:52:22,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:52:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:52:22,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:52:22,612 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:52:22,613 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 82 remaining) [2024-01-27 14:52:22,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 82 remaining) [2024-01-27 14:52:22,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 82 remaining) [2024-01-27 14:52:22,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 82 remaining) [2024-01-27 14:52:22,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 82 remaining) [2024-01-27 14:52:22,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 82 remaining) [2024-01-27 14:52:22,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 82 remaining) [2024-01-27 14:52:22,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 82 remaining) [2024-01-27 14:52:22,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 82 remaining) [2024-01-27 14:52:22,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 82 remaining) [2024-01-27 14:52:22,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 82 remaining) [2024-01-27 14:52:22,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 82 remaining) [2024-01-27 14:52:22,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 82 remaining) [2024-01-27 14:52:22,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 82 remaining) [2024-01-27 14:52:22,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 82 remaining) [2024-01-27 14:52:22,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 82 remaining) [2024-01-27 14:52:22,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 82 remaining) [2024-01-27 14:52:22,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 82 remaining) [2024-01-27 14:52:22,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 82 remaining) [2024-01-27 14:52:22,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 82 remaining) [2024-01-27 14:52:22,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 82 remaining) [2024-01-27 14:52:22,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 82 remaining) [2024-01-27 14:52:22,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 82 remaining) [2024-01-27 14:52:22,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 82 remaining) [2024-01-27 14:52:22,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 82 remaining) [2024-01-27 14:52:22,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 82 remaining) [2024-01-27 14:52:22,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 82 remaining) [2024-01-27 14:52:22,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 82 remaining) [2024-01-27 14:52:22,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 82 remaining) [2024-01-27 14:52:22,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 82 remaining) [2024-01-27 14:52:22,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 82 remaining) [2024-01-27 14:52:22,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 82 remaining) [2024-01-27 14:52:22,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 82 remaining) [2024-01-27 14:52:22,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 82 remaining) [2024-01-27 14:52:22,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 82 remaining) [2024-01-27 14:52:22,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 82 remaining) [2024-01-27 14:52:22,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 82 remaining) [2024-01-27 14:52:22,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 82 remaining) [2024-01-27 14:52:22,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 82 remaining) [2024-01-27 14:52:22,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 82 remaining) [2024-01-27 14:52:22,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 82 remaining) [2024-01-27 14:52:22,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 82 remaining) [2024-01-27 14:52:22,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 82 remaining) [2024-01-27 14:52:22,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 82 remaining) [2024-01-27 14:52:22,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 82 remaining) [2024-01-27 14:52:22,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 82 remaining) [2024-01-27 14:52:22,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 82 remaining) [2024-01-27 14:52:22,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 82 remaining) [2024-01-27 14:52:22,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (33 of 82 remaining) [2024-01-27 14:52:22,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 82 remaining) [2024-01-27 14:52:22,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 82 remaining) [2024-01-27 14:52:22,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 82 remaining) [2024-01-27 14:52:22,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 82 remaining) [2024-01-27 14:52:22,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 82 remaining) [2024-01-27 14:52:22,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 82 remaining) [2024-01-27 14:52:22,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 82 remaining) [2024-01-27 14:52:22,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 82 remaining) [2024-01-27 14:52:22,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 82 remaining) [2024-01-27 14:52:22,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 82 remaining) [2024-01-27 14:52:22,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 82 remaining) [2024-01-27 14:52:22,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 82 remaining) [2024-01-27 14:52:22,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 82 remaining) [2024-01-27 14:52:22,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 82 remaining) [2024-01-27 14:52:22,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 82 remaining) [2024-01-27 14:52:22,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 82 remaining) [2024-01-27 14:52:22,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 82 remaining) [2024-01-27 14:52:22,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 82 remaining) [2024-01-27 14:52:22,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 82 remaining) [2024-01-27 14:52:22,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 82 remaining) [2024-01-27 14:52:22,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 82 remaining) [2024-01-27 14:52:22,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 82 remaining) [2024-01-27 14:52:22,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 82 remaining) [2024-01-27 14:52:22,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 82 remaining) [2024-01-27 14:52:22,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 82 remaining) [2024-01-27 14:52:22,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 82 remaining) [2024-01-27 14:52:22,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 82 remaining) [2024-01-27 14:52:22,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 82 remaining) [2024-01-27 14:52:22,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 82 remaining) [2024-01-27 14:52:22,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 82 remaining) [2024-01-27 14:52:22,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 82 remaining) [2024-01-27 14:52:22,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 82 remaining) [2024-01-27 14:52:22,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 82 remaining) [2024-01-27 14:52:22,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 14:52:22,629 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:52:22,634 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:52:22,634 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:52:22,671 INFO L503 ceAbstractionStarter]: Automizer considered 47 witness invariants [2024-01-27 14:52:22,671 INFO L504 ceAbstractionStarter]: WitnessConsidered=47 [2024-01-27 14:52:22,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:52:22 BasicIcfg [2024-01-27 14:52:22,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:52:22,673 INFO L158 Benchmark]: Toolchain (without parser) took 3487.69ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 94.1MB in the beginning and 186.4MB in the end (delta: -92.3MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. [2024-01-27 14:52:22,674 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 109.1MB. Free memory was 70.0MB in the beginning and 69.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:52:22,674 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 165.7MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:52:22,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.99ms. Allocated memory is still 165.7MB. Free memory was 93.8MB in the beginning and 123.5MB in the end (delta: -29.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-01-27 14:52:22,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.48ms. Allocated memory is still 165.7MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:52:22,675 INFO L158 Benchmark]: Boogie Preprocessor took 50.40ms. Allocated memory is still 165.7MB. Free memory was 121.4MB in the beginning and 119.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:52:22,675 INFO L158 Benchmark]: RCFGBuilder took 724.22ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 122.7MB in the end (delta: -3.9MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2024-01-27 14:52:22,675 INFO L158 Benchmark]: TraceAbstraction took 2315.81ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 121.6MB in the beginning and 186.4MB in the end (delta: -64.8MB). Peak memory consumption was 117.6MB. Max. memory is 16.1GB. [2024-01-27 14:52:22,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 109.1MB. Free memory was 70.0MB in the beginning and 69.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.71ms. Allocated memory is still 165.7MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.99ms. Allocated memory is still 165.7MB. Free memory was 93.8MB in the beginning and 123.5MB in the end (delta: -29.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.48ms. Allocated memory is still 165.7MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.40ms. Allocated memory is still 165.7MB. Free memory was 121.4MB in the beginning and 119.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 724.22ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 122.7MB in the end (delta: -3.9MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2315.81ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 121.6MB in the beginning and 186.4MB in the end (delta: -64.8MB). Peak memory consumption was 117.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int M, counter, C; [L65] 0 pthread_t t1, t2; VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[C],IntegerLiteral[0U]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L67] 0 C = __VERIFIER_nondet_uint() [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] [L68] 0 M = __VERIFIER_nondet_uint() [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L69] CALL 0 assume_abort_if_not(M > 0) [L35] COND FALSE 0 !(!cond) [L69] RET 0 assume_abort_if_not(M > 0) [L72] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L72] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [M=1, _argptr={0:0}, counter=0, t1={5:0}, t2={3:0}] [L41] 1 unsigned int i=0; VAL [M=1, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [M=1, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[11U]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[10U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[9U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[8U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[7U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[6U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[5U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[4U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[3U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[2U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[1U]]],BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IntegerLiteral[0U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[0U]]]],BinaryExpression[COMPLEQ,IntegerLiteral[12U],IdentifierExpression[i]]]]] VAL [M=1, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L41] COND TRUE 1 i