./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 59af5db6 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-59af5db-m [2024-02-02 09:21:33,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:21:33,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:21:33,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:21:33,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:21:33,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:21:33,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:21:33,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:21:33,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:21:33,814 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:21:33,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:21:33,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:21:33,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:21:33,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:21:33,815 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:21:33,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:21:33,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:21:33,817 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:21:33,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:21:33,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:21:33,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:21:33,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:21:33,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:21:33,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:21:33,819 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:21:33,820 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:21:33,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:21:33,820 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:21:33,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:21:33,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:21:33,821 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:21:33,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:21:33,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:21:33,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:21:33,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:21:33,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:21:33,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:21:33,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:21:33,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:21:33,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:21:33,824 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:21:33,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:21:33,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:21:33,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:21:34,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:21:34,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:21:34,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:21:34,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:21:34,095 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:21:34,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-02-02 09:21:35,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:21:35,457 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:21:35,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-02-02 09:21:35,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82b39e561/6b1c57cebc9245dd933704bfba1877cc/FLAGc01e336ec [2024-02-02 09:21:35,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82b39e561/6b1c57cebc9245dd933704bfba1877cc [2024-02-02 09:21:35,478 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:21:35,478 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:21:35,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-nonblocking-counter-alt2.wvr.yml/witness.yml [2024-02-02 09:21:35,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:21:35,605 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:21:35,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:21:35,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:21:35,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:21:35,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:21:35" (1/2) ... [2024-02-02 09:21:35,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4757d145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:35, skipping insertion in model container [2024-02-02 09:21:35,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:21:35" (1/2) ... [2024-02-02 09:21:35,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71647d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:35, skipping insertion in model container [2024-02-02 09:21:35,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:35" (2/2) ... [2024-02-02 09:21:35,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4757d145 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35, skipping insertion in model container [2024-02-02 09:21:35,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:35" (2/2) ... [2024-02-02 09:21:35,613 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:21:35,641 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:21:35,643 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (((1U <= counter) && ((unsigned long )_argptr == 0UL)) && (counter != 0U)) && ((((((((((((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) [2024-02-02 09:21:35,643 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] counter == 0U [2024-02-02 09:21:35,643 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] ((unsigned long )_argptr == 0UL) && ((((((((((((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) [2024-02-02 09:21:35,644 INFO L101 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-02-02 09:21:35,644 INFO L101 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-02-02 09:21:35,645 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] ((unsigned long )_argptr == 0UL) && ((((((((((((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)) [2024-02-02 09:21:35,645 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] (((((((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL)) && ((0LL - (long long )M) - (long long )counter >= 0LL)) && ((long long )M - (long long )counter >= 0LL)) && (M == 0U)) && (counter == 0U)) && (C == 0U) [2024-02-02 09:21:35,645 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-02 09:21:35,648 INFO L101 nessWitnessExtractor]: Loop invariant at [L52-L59] (unsigned long )_argptr == 0UL [2024-02-02 09:21:35,649 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] ((unsigned long )_argptr == 0UL) && ((((((((((((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)) [2024-02-02 09:21:35,649 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] ((((((((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL)) && ((0LL - (long long )M) - (long long )counter >= 0LL)) && ((long long )M - (long long )counter >= 0LL)) && (M == 0U)) && (counter == 0U)) && ((unsigned long )_argptr == 0UL)) && ((((((((((((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)) [2024-02-02 09:21:35,649 INFO L101 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-02-02 09:21:35,649 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] counter == 0U [2024-02-02 09:21:35,649 INFO L101 nessWitnessExtractor]: Loop invariant at [L41-L45] ((unsigned long )_argptr == 0UL) && ((((((((((((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) [2024-02-02 09:21:35,649 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L57] ((unsigned long )_argptr == 0UL) && ((((((((((((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) [2024-02-02 09:21:35,650 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] ((unsigned long )_argptr == 0UL) && ((((((((((((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) [2024-02-02 09:21:35,650 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] ((((((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL)) && ((0LL - (long long )M) - (long long )counter >= 0LL)) && ((long long )M - (long long )counter >= 0LL)) && (M == 0U)) && (counter == 0U) [2024-02-02 09:21:35,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:21:35,823 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] [2024-02-02 09:21:35,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:21:35,851 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 [2024-02-02 09:21:35,943 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] [2024-02-02 09:21:35,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:21:35,966 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:21:35,966 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35 WrapperNode [2024-02-02 09:21:35,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:21:35,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:21:35,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:21:35,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:21:35,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:35,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,003 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-02-02 09:21:36,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:21:36,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:21:36,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:21:36,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:21:36,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,032 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]. [2024-02-02 09:21:36,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:21:36,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:21:36,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:21:36,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:21:36,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (1/1) ... [2024-02-02 09:21:36,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:21:36,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:21:36,101 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) [2024-02-02 09:21:36,126 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 [2024-02-02 09:21:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:21:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:21:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:21:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:21:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:21:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:21:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:21:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:21:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:21:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:21:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:21:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:21:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:21:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:21:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:21:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:21:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:21:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:21:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:21:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:21:36,181 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:21:36,280 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:21:36,282 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:21:36,652 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:21:36,654 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:21:36,783 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:21:36,783 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-02-02 09:21:36,784 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:21:36 BoogieIcfgContainer [2024-02-02 09:21:36,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:21:36,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:21:36,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:21:36,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:21:36,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:21:35" (1/4) ... [2024-02-02 09:21:36,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a272cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:21:36, skipping insertion in model container [2024-02-02 09:21:36,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:35" (2/4) ... [2024-02-02 09:21:36,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a272cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:21:36, skipping insertion in model container [2024-02-02 09:21:36,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:35" (3/4) ... [2024-02-02 09:21:36,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a272cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:21:36, skipping insertion in model container [2024-02-02 09:21:36,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:21:36" (4/4) ... [2024-02-02 09:21:36,795 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2024-02-02 09:21:36,811 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:21:36,811 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-02-02 09:21:36,811 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:21:36,894 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-02 09:21:36,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 122 flow [2024-02-02 09:21:37,006 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-02-02 09:21:37,006 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-02 09:21:37,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 52 events. 2/52 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 127 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-02-02 09:21:37,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 54 transitions, 122 flow [2024-02-02 09:21:37,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 51 transitions, 114 flow [2024-02-02 09:21:37,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:21:37,029 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;@34a28435, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:21:37,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-02-02 09:21:37,034 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:21:37,034 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:21:37,034 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:21:37,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:37,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:21:37,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 34 more)] === [2024-02-02 09:21:37,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash 9414, now seen corresponding path program 1 times [2024-02-02 09:21:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:37,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230286931] [2024-02-02 09:21:37,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:37,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:21:37,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:37,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230286931] [2024-02-02 09:21:37,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230286931] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:37,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:37,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:37,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916426605] [2024-02-02 09:21:37,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:37,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:37,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:37,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:37,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-02-02 09:21:37,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-02-02 09:21:37,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:37,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-02-02 09:21:37,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:37,643 INFO L124 PetriNetUnfolderBase]: 201/438 cut-off events. [2024-02-02 09:21:37,643 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-02-02 09:21:37,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 438 events. 201/438 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2407 event pairs, 165 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 724. Up to 345 conditions per place. [2024-02-02 09:21:37,651 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 27 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2024-02-02 09:21:37,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 162 flow [2024-02-02 09:21:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:37,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-02-02 09:21:37,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5617283950617284 [2024-02-02 09:21:37,672 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 114 flow. Second operand 3 states and 91 transitions. [2024-02-02 09:21:37,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 162 flow [2024-02-02 09:21:37,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 154 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:21:37,683 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 100 flow [2024-02-02 09:21:37,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2024-02-02 09:21:37,690 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2024-02-02 09:21:37,690 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 100 flow [2024-02-02 09:21:37,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-02-02 09:21:37,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:37,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:21:37,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:21:37,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 34 more)] === [2024-02-02 09:21:37,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:37,694 INFO L85 PathProgramCache]: Analyzing trace with hash 292147, now seen corresponding path program 1 times [2024-02-02 09:21:37,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:37,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589876365] [2024-02-02 09:21:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:37,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:21:37,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:37,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589876365] [2024-02-02 09:21:37,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589876365] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:37,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:37,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:21:37,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444584955] [2024-02-02 09:21:37,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:37,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:37,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:37,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:37,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:37,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-02-02 09:21:37,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-02-02 09:21:37,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:37,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-02-02 09:21:37,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:38,028 INFO L124 PetriNetUnfolderBase]: 201/437 cut-off events. [2024-02-02 09:21:38,029 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:21:38,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 437 events. 201/437 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2360 event pairs, 165 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 786. Up to 343 conditions per place. [2024-02-02 09:21:38,041 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 26 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-02-02 09:21:38,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 45 transitions, 154 flow [2024-02-02 09:21:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:38,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:38,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-02-02 09:21:38,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5493827160493827 [2024-02-02 09:21:38,045 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 100 flow. Second operand 3 states and 89 transitions. [2024-02-02 09:21:38,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 45 transitions, 154 flow [2024-02-02 09:21:38,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:38,048 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 98 flow [2024-02-02 09:21:38,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-02-02 09:21:38,049 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2024-02-02 09:21:38,049 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 98 flow [2024-02-02 09:21:38,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-02-02 09:21:38,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:38,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:21:38,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:21:38,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 34 more)] === [2024-02-02 09:21:38,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:38,053 INFO L85 PathProgramCache]: Analyzing trace with hash 9056843, now seen corresponding path program 1 times [2024-02-02 09:21:38,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:38,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399131244] [2024-02-02 09:21:38,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:38,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:21:38,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:38,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399131244] [2024-02-02 09:21:38,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399131244] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:38,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:38,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:21:38,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083453173] [2024-02-02 09:21:38,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:38,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:38,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:38,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-02-02 09:21:38,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-02-02 09:21:38,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:38,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-02-02 09:21:38,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:38,256 INFO L124 PetriNetUnfolderBase]: 205/510 cut-off events. [2024-02-02 09:21:38,257 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:21:38,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 510 events. 205/510 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3085 event pairs, 87 based on Foata normal form. 1/395 useless extension candidates. Maximal degree in co-relation 888. Up to 199 conditions per place. [2024-02-02 09:21:38,261 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 36 selfloop transitions, 2 changer transitions 1/58 dead transitions. [2024-02-02 09:21:38,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 58 transitions, 205 flow [2024-02-02 09:21:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-02-02 09:21:38,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2024-02-02 09:21:38,268 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 98 flow. Second operand 3 states and 111 transitions. [2024-02-02 09:21:38,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 58 transitions, 205 flow [2024-02-02 09:21:38,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:38,272 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 102 flow [2024-02-02 09:21:38,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-02-02 09:21:38,273 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -9 predicate places. [2024-02-02 09:21:38,274 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 102 flow [2024-02-02 09:21:38,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-02-02 09:21:38,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:38,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:21:38,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:21:38,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 34 more)] === [2024-02-02 09:21:38,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:38,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1893450066, now seen corresponding path program 1 times [2024-02-02 09:21:38,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:38,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436908335] [2024-02-02 09:21:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:38,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:38,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:21:38,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:38,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436908335] [2024-02-02 09:21:38,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436908335] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:38,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:38,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:21:38,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304245934] [2024-02-02 09:21:38,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:38,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:21:38,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:38,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:21:38,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:21:38,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-02-02 09:21:38,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-02-02 09:21:38,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:38,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-02-02 09:21:38,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:38,703 INFO L124 PetriNetUnfolderBase]: 202/496 cut-off events. [2024-02-02 09:21:38,703 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-02-02 09:21:38,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 496 events. 202/496 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3001 event pairs, 5 based on Foata normal form. 28/464 useless extension candidates. Maximal degree in co-relation 420. Up to 349 conditions per place. [2024-02-02 09:21:38,707 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 31 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-02-02 09:21:38,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 49 transitions, 179 flow [2024-02-02 09:21:38,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:21:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:21:38,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-02-02 09:21:38,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-02-02 09:21:38,708 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 102 flow. Second operand 4 states and 123 transitions. [2024-02-02 09:21:38,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 49 transitions, 179 flow [2024-02-02 09:21:38,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 177 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:21:38,710 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 98 flow [2024-02-02 09:21:38,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-02-02 09:21:38,711 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -10 predicate places. [2024-02-02 09:21:38,711 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 98 flow [2024-02-02 09:21:38,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-02-02 09:21:38,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:38,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:21:38,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:21:38,712 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 34 more)] === [2024-02-02 09:21:38,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:38,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1462008348, now seen corresponding path program 1 times [2024-02-02 09:21:38,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:38,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509760331] [2024-02-02 09:21:38,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:38,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:38,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:21:38,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:38,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509760331] [2024-02-02 09:21:38,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509760331] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:38,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:38,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:21:38,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014031407] [2024-02-02 09:21:38,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:38,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:21:38,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:38,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:21:38,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:21:38,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-02-02 09:21:38,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-02-02 09:21:38,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:38,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-02-02 09:21:38,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:38,951 INFO L124 PetriNetUnfolderBase]: 259/568 cut-off events. [2024-02-02 09:21:38,951 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-02-02 09:21:38,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 568 events. 259/568 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3109 event pairs, 9 based on Foata normal form. 48/552 useless extension candidates. Maximal degree in co-relation 899. Up to 351 conditions per place. [2024-02-02 09:21:38,955 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 41 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-02-02 09:21:38,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 223 flow [2024-02-02 09:21:38,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:21:38,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:21:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-02-02 09:21:38,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-02-02 09:21:38,957 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 98 flow. Second operand 4 states and 124 transitions. [2024-02-02 09:21:38,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 223 flow [2024-02-02 09:21:38,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:38,960 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 91 flow [2024-02-02 09:21:38,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2024-02-02 09:21:38,962 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -13 predicate places. [2024-02-02 09:21:38,962 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 91 flow [2024-02-02 09:21:38,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-02-02 09:21:38,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:38,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:21:38,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:21:38,963 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 34 more)] === [2024-02-02 09:21:38,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1460609515, now seen corresponding path program 1 times [2024-02-02 09:21:38,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:38,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942165936] [2024-02-02 09:21:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:38,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:21:39,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:39,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942165936] [2024-02-02 09:21:39,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942165936] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:39,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:39,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:21:39,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941362770] [2024-02-02 09:21:39,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:39,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:21:39,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:39,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:21:39,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:21:39,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 54 [2024-02-02 09:21:39,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-02-02 09:21:39,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:39,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 54 [2024-02-02 09:21:39,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:39,279 INFO L124 PetriNetUnfolderBase]: 311/578 cut-off events. [2024-02-02 09:21:39,280 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-02-02 09:21:39,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 578 events. 311/578 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3130 event pairs, 23 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 1059. Up to 271 conditions per place. [2024-02-02 09:21:39,283 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 42 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2024-02-02 09:21:39,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 217 flow [2024-02-02 09:21:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:21:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:21:39,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions. [2024-02-02 09:21:39,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5231481481481481 [2024-02-02 09:21:39,284 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 91 flow. Second operand 4 states and 113 transitions. [2024-02-02 09:21:39,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 217 flow [2024-02-02 09:21:39,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:39,286 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 92 flow [2024-02-02 09:21:39,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-02-02 09:21:39,287 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -13 predicate places. [2024-02-02 09:21:39,287 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 92 flow [2024-02-02 09:21:39,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-02-02 09:21:39,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:39,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:21:39,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:21:39,288 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 34 more)] === [2024-02-02 09:21:39,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1965745628, now seen corresponding path program 1 times [2024-02-02 09:21:39,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:39,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183895026] [2024-02-02 09:21:39,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:39,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:21:39,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:21:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:21:39,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:21:39,326 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:21:39,327 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 37 remaining) [2024-02-02 09:21:39,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 37 remaining) [2024-02-02 09:21:39,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 37 remaining) [2024-02-02 09:21:39,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 37 remaining) [2024-02-02 09:21:39,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 37 remaining) [2024-02-02 09:21:39,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 37 remaining) [2024-02-02 09:21:39,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 37 remaining) [2024-02-02 09:21:39,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 37 remaining) [2024-02-02 09:21:39,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 37 remaining) [2024-02-02 09:21:39,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 37 remaining) [2024-02-02 09:21:39,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 37 remaining) [2024-02-02 09:21:39,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 37 remaining) [2024-02-02 09:21:39,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 37 remaining) [2024-02-02 09:21:39,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 37 remaining) [2024-02-02 09:21:39,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 37 remaining) [2024-02-02 09:21:39,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 37 remaining) [2024-02-02 09:21:39,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 37 remaining) [2024-02-02 09:21:39,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 37 remaining) [2024-02-02 09:21:39,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 37 remaining) [2024-02-02 09:21:39,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 37 remaining) [2024-02-02 09:21:39,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (16 of 37 remaining) [2024-02-02 09:21:39,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 37 remaining) [2024-02-02 09:21:39,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 37 remaining) [2024-02-02 09:21:39,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 37 remaining) [2024-02-02 09:21:39,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 37 remaining) [2024-02-02 09:21:39,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 37 remaining) [2024-02-02 09:21:39,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 37 remaining) [2024-02-02 09:21:39,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 37 remaining) [2024-02-02 09:21:39,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 37 remaining) [2024-02-02 09:21:39,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 37 remaining) [2024-02-02 09:21:39,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 37 remaining) [2024-02-02 09:21:39,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 37 remaining) [2024-02-02 09:21:39,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 37 remaining) [2024-02-02 09:21:39,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 37 remaining) [2024-02-02 09:21:39,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 37 remaining) [2024-02-02 09:21:39,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 37 remaining) [2024-02-02 09:21:39,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 37 remaining) [2024-02-02 09:21:39,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:21:39,336 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:21:39,342 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:21:39,342 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:21:39,363 INFO L503 ceAbstractionStarter]: Automizer considered 19 witness invariants [2024-02-02 09:21:39,363 INFO L504 ceAbstractionStarter]: WitnessConsidered=19 [2024-02-02 09:21:39,364 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:21:39 BasicIcfg [2024-02-02 09:21:39,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:21:39,365 INFO L158 Benchmark]: Toolchain (without parser) took 3760.15ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 85.8MB in the beginning and 99.7MB in the end (delta: -13.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-02-02 09:21:39,365 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:21:39,365 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 159.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:21:39,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.86ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 69.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-02-02 09:21:39,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.26ms. Allocated memory is still 159.4MB. Free memory was 69.0MB in the beginning and 67.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:21:39,366 INFO L158 Benchmark]: Boogie Preprocessor took 65.53ms. Allocated memory is still 159.4MB. Free memory was 67.2MB in the beginning and 64.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-02 09:21:39,366 INFO L158 Benchmark]: RCFGBuilder took 714.35ms. Allocated memory is still 159.4MB. Free memory was 64.6MB in the beginning and 79.2MB in the end (delta: -14.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2024-02-02 09:21:39,368 INFO L158 Benchmark]: TraceAbstraction took 2575.94ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 78.4MB in the beginning and 99.7MB in the end (delta: -21.3MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2024-02-02 09:21:39,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 159.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.86ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 69.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.26ms. Allocated memory is still 159.4MB. Free memory was 69.0MB in the beginning and 67.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.53ms. Allocated memory is still 159.4MB. Free memory was 67.2MB in the beginning and 64.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 714.35ms. Allocated memory is still 159.4MB. Free memory was 64.6MB in the beginning and 79.2MB in the end (delta: -14.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2575.94ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 78.4MB in the beginning and 99.7MB in the end (delta: -21.3MB). Peak memory consumption was 52.6MB. 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={3:0}, t2={5:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[C],IntegerLiteral[0U]]]]] [L67] 0 C = __VERIFIER_nondet_uint() [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]]] [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={3:0}, t2={5:0}] [L41] 1 unsigned int i=0; VAL [M=1, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],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