./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.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-bad-threaded-sum-2.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-bad-threaded-sum-2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-bad-threaded-sum-2.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 09:21:01,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:21:01,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:21:01,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:21:01,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:21:02,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:21:02,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:21:02,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:21:02,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:21:02,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:21:02,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:21:02,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:21:02,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:21:02,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:21:02,012 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:21:02,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:21:02,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:21:02,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:21:02,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:21:02,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:21:02,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:21:02,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:21:02,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:21:02,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:21:02,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:21:02,019 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:21:02,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:21:02,020 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:21:02,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:21:02,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:21:02,021 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:21:02,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:21:02,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:21:02,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:21:02,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:21:02,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:21:02,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:21:02,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:21:02,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:21:02,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:21:02,022 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:21:02,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:21:02,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:21:02,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:21:02,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:21:02,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:21:02,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:21:02,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:21:02,247 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:21:02,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-02-02 09:21:03,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:21:03,450 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:21:03,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-02-02 09:21:03,456 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb22234c7/e85f0c1a8cea4dc5ba97f787c8328172/FLAGe3033b9f2 [2024-02-02 09:21:03,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb22234c7/e85f0c1a8cea4dc5ba97f787c8328172 [2024-02-02 09:21:03,469 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:21:03,470 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:21:03,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-bad-threaded-sum-2.wvr.yml/witness.yml [2024-02-02 09:21:03,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:21:03,576 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:21:03,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:21:03,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:21:03,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:21:03,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:21:03" (1/2) ... [2024-02-02 09:21:03,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1d2f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:03, skipping insertion in model container [2024-02-02 09:21:03,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:21:03" (1/2) ... [2024-02-02 09:21:03,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@215b957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:03, skipping insertion in model container [2024-02-02 09:21:03,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:03" (2/2) ... [2024-02-02 09:21:03,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1d2f41 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:03, skipping insertion in model container [2024-02-02 09:21:03,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:03" (2/2) ... [2024-02-02 09:21:03,585 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:21:03,602 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:21:03,607 INFO L101 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,607 INFO L101 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,607 INFO L101 nessWitnessExtractor]: Location invariant before [L83-L83] ((m == 0U) && (T == 0U)) && (S == 0U) [2024-02-02 09:21:03,607 INFO L101 nessWitnessExtractor]: Loop invariant at [L44-L54] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,607 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,608 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,608 INFO L101 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,608 INFO L101 nessWitnessExtractor]: Location invariant before [L47-L47] ((1U <= s) && ((unsigned long )_argptr == 0UL)) && (s != 0U) [2024-02-02 09:21:03,608 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,608 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (((t == 0U) && (m == 0U)) && (T == 0U)) && (S == 0U) [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L84-L84] (m == 0U) && (T == 0U) [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L52-L52] (s == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L81-L81] ((((s == 0U) && (t == 0U)) && (m == 0U)) && (T == 0U)) && (S == 0U) [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L46-L49] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,609 INFO L101 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,610 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (((((unsigned long )_argptr == 0UL) && (t == 0U)) && (m == 0U)) && (T == 0U)) && (S == 0U) [2024-02-02 09:21:03,610 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,610 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] (s == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:03,610 INFO L101 nessWitnessExtractor]: Location invariant before [L89-L89] m == 0U [2024-02-02 09:21:03,610 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L86] ((1U <= s) && (m == 0U)) && (s != 0U) [2024-02-02 09:21:03,611 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,611 INFO L101 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,611 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L48] ((s <= 4294967294U) && ((unsigned long )_argptr == 0UL)) && (s != 4294967295U) [2024-02-02 09:21:03,611 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,611 INFO L101 nessWitnessExtractor]: Loop invariant at [L63-L73] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,611 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] (s <= 4294967294U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:03,611 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,612 INFO L101 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,612 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,612 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-02-02 09:21:03,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:21:03,766 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-bad-threaded-sum-2.wvr.c[2502,2515] [2024-02-02 09:21:03,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:21:03,777 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 [2024-02-02 09:21:03,835 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-bad-threaded-sum-2.wvr.c[2502,2515] [2024-02-02 09:21:03,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:21:03,847 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:21:03,847 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:03 WrapperNode [2024-02-02 09:21:03,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:21:03,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:21:03,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:21:03,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:21:03,855 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,876 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,890 INFO L138 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-02-02 09:21:03,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:21:03,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:21:03,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:21:03,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:21:03,899 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,900 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,912 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,930 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 09:21:03,931 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,933 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,947 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,954 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,957 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,966 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:21:03,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:21:03,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:21:03,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:21:03,969 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 09:21:03" (1/1) ... [2024-02-02 09:21:03,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:21:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:21:03,997 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 09:21:04,015 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 09:21:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:21:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:21:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:21:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:21:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:21:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:21:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:21:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:21:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:21:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:21:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:21:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:21:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:21:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:21:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:21:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:21:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:21:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:21:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:21:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:21:04,033 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 09:21:04,123 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:21:04,125 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:21:04,376 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:21:04,376 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:21:04,520 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:21:04,520 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-02-02 09:21:04,521 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:21:04 BoogieIcfgContainer [2024-02-02 09:21:04,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:21:04,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:21:04,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:21:04,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:21:04,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:21:03" (1/4) ... [2024-02-02 09:21:04,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6316085c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:21:04, skipping insertion in model container [2024-02-02 09:21:04,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:03" (2/4) ... [2024-02-02 09:21:04,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6316085c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:21:04, skipping insertion in model container [2024-02-02 09:21:04,531 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 09:21:03" (3/4) ... [2024-02-02 09:21:04,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6316085c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:21:04, skipping insertion in model container [2024-02-02 09:21:04,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:21:04" (4/4) ... [2024-02-02 09:21:04,533 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2024-02-02 09:21:04,547 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:21:04,548 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-02-02 09:21:04,548 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:21:04,611 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-02 09:21:04,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 174 flow [2024-02-02 09:21:04,666 INFO L124 PetriNetUnfolderBase]: 2/78 cut-off events. [2024-02-02 09:21:04,666 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-02 09:21:04,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 2/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 198 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-02-02 09:21:04,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 174 flow [2024-02-02 09:21:04,674 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 166 flow [2024-02-02 09:21:04,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:21:04,686 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;@73b63e7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:21:04,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2024-02-02 09:21:04,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:21:04,688 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:21:04,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:21:04,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:04,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:21:04,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 64 more)] === [2024-02-02 09:21:04,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:04,694 INFO L85 PathProgramCache]: Analyzing trace with hash 12325, now seen corresponding path program 1 times [2024-02-02 09:21:04,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:04,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568077841] [2024-02-02 09:21:04,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:04,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:05,249 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 09:21:05,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:05,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568077841] [2024-02-02 09:21:05,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568077841] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:05,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:05,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:05,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158854473] [2024-02-02 09:21:05,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:05,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:05,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:05,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:05,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:05,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 80 [2024-02-02 09:21:05,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 09:21:05,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:05,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 80 [2024-02-02 09:21:05,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:05,552 INFO L124 PetriNetUnfolderBase]: 337/752 cut-off events. [2024-02-02 09:21:05,552 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-02-02 09:21:05,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 752 events. 337/752 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5275 event pairs, 327 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 1260. Up to 602 conditions per place. [2024-02-02 09:21:05,564 INFO L140 encePairwiseOnDemand]: 69/80 looper letters, 36 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-02-02 09:21:05,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 68 transitions, 224 flow [2024-02-02 09:21:05,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:05,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-02-02 09:21:05,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5958333333333333 [2024-02-02 09:21:05,577 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 166 flow. Second operand 3 states and 143 transitions. [2024-02-02 09:21:05,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 68 transitions, 224 flow [2024-02-02 09:21:05,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:21:05,588 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 144 flow [2024-02-02 09:21:05,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2024-02-02 09:21:05,593 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2024-02-02 09:21:05,593 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 144 flow [2024-02-02 09:21:05,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 09:21:05,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:05,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:21:05,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:21:05,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 64 more)] === [2024-02-02 09:21:05,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:05,595 INFO L85 PathProgramCache]: Analyzing trace with hash 382445, now seen corresponding path program 1 times [2024-02-02 09:21:05,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:05,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471044253] [2024-02-02 09:21:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:05,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:05,656 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 09:21:05,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471044253] [2024-02-02 09:21:05,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471044253] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:05,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:05,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:21:05,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596577040] [2024-02-02 09:21:05,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:05,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:05,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:05,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:05,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:05,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 80 [2024-02-02 09:21:05,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 09:21:05,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:05,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 80 [2024-02-02 09:21:05,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:05,918 INFO L124 PetriNetUnfolderBase]: 552/1268 cut-off events. [2024-02-02 09:21:05,918 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-02 09:21:05,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2216 conditions, 1268 events. 552/1268 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 9072 event pairs, 278 based on Foata normal form. 1/822 useless extension candidates. Maximal degree in co-relation 2207. Up to 667 conditions per place. [2024-02-02 09:21:05,924 INFO L140 encePairwiseOnDemand]: 73/80 looper letters, 51 selfloop transitions, 5 changer transitions 1/87 dead transitions. [2024-02-02 09:21:05,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 87 transitions, 299 flow [2024-02-02 09:21:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-02-02 09:21:05,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2024-02-02 09:21:05,930 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 144 flow. Second operand 3 states and 158 transitions. [2024-02-02 09:21:05,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 87 transitions, 299 flow [2024-02-02 09:21:05,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 87 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:05,944 INFO L231 Difference]: Finished difference. Result has 71 places, 69 transitions, 163 flow [2024-02-02 09:21:05,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2024-02-02 09:21:05,945 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2024-02-02 09:21:05,946 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 163 flow [2024-02-02 09:21:05,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 09:21:05,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:05,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:21:05,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:21:05,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 64 more)] === [2024-02-02 09:21:05,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash 11856167, now seen corresponding path program 1 times [2024-02-02 09:21:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:05,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171128961] [2024-02-02 09:21:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:06,009 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 09:21:06,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:06,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171128961] [2024-02-02 09:21:06,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171128961] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:06,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:06,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:21:06,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986355421] [2024-02-02 09:21:06,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:06,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:06,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:06,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 80 [2024-02-02 09:21:06,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 09:21:06,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:06,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 80 [2024-02-02 09:21:06,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:06,203 INFO L124 PetriNetUnfolderBase]: 614/1435 cut-off events. [2024-02-02 09:21:06,203 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2024-02-02 09:21:06,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 1435 events. 614/1435 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10366 event pairs, 346 based on Foata normal form. 1/1057 useless extension candidates. Maximal degree in co-relation 704. Up to 605 conditions per place. [2024-02-02 09:21:06,209 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 52 selfloop transitions, 5 changer transitions 1/88 dead transitions. [2024-02-02 09:21:06,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 88 transitions, 324 flow [2024-02-02 09:21:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2024-02-02 09:21:06,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-02-02 09:21:06,211 INFO L175 Difference]: Start difference. First operand has 71 places, 69 transitions, 163 flow. Second operand 3 states and 160 transitions. [2024-02-02 09:21:06,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 88 transitions, 324 flow [2024-02-02 09:21:06,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 88 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:21:06,213 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 179 flow [2024-02-02 09:21:06,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2024-02-02 09:21:06,214 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -10 predicate places. [2024-02-02 09:21:06,214 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 179 flow [2024-02-02 09:21:06,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 09:21:06,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:06,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:21:06,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:21:06,215 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 64 more)] === [2024-02-02 09:21:06,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash 367541598, now seen corresponding path program 1 times [2024-02-02 09:21:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996577694] [2024-02-02 09:21:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:06,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:06,246 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 09:21:06,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:06,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996577694] [2024-02-02 09:21:06,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996577694] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:06,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:06,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:21:06,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336870944] [2024-02-02 09:21:06,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:06,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:06,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:06,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:06,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:06,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 80 [2024-02-02 09:21:06,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 09:21:06,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:06,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 80 [2024-02-02 09:21:06,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:06,416 INFO L124 PetriNetUnfolderBase]: 614/1434 cut-off events. [2024-02-02 09:21:06,416 INFO L125 PetriNetUnfolderBase]: For 379/385 co-relation queries the response was YES. [2024-02-02 09:21:06,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 1434 events. 614/1434 cut-off events. For 379/385 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10412 event pairs, 346 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 744. Up to 603 conditions per place. [2024-02-02 09:21:06,440 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 51 selfloop transitions, 5 changer transitions 1/87 dead transitions. [2024-02-02 09:21:06,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 87 transitions, 334 flow [2024-02-02 09:21:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2024-02-02 09:21:06,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6708333333333333 [2024-02-02 09:21:06,442 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 179 flow. Second operand 3 states and 161 transitions. [2024-02-02 09:21:06,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 87 transitions, 334 flow [2024-02-02 09:21:06,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 87 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:21:06,446 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 182 flow [2024-02-02 09:21:06,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2024-02-02 09:21:06,448 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -10 predicate places. [2024-02-02 09:21:06,448 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 182 flow [2024-02-02 09:21:06,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 09:21:06,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:06,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:21:06,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:21:06,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 64 more)] === [2024-02-02 09:21:06,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:06,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1491111990, now seen corresponding path program 1 times [2024-02-02 09:21:06,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:06,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816363538] [2024-02-02 09:21:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:06,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:21:06,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:21:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:21:06,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:21:06,503 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:21:06,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 67 remaining) [2024-02-02 09:21:06,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 67 remaining) [2024-02-02 09:21:06,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 67 remaining) [2024-02-02 09:21:06,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 67 remaining) [2024-02-02 09:21:06,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 67 remaining) [2024-02-02 09:21:06,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 67 remaining) [2024-02-02 09:21:06,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 67 remaining) [2024-02-02 09:21:06,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 67 remaining) [2024-02-02 09:21:06,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 67 remaining) [2024-02-02 09:21:06,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 67 remaining) [2024-02-02 09:21:06,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 67 remaining) [2024-02-02 09:21:06,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 67 remaining) [2024-02-02 09:21:06,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 67 remaining) [2024-02-02 09:21:06,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 67 remaining) [2024-02-02 09:21:06,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 67 remaining) [2024-02-02 09:21:06,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 67 remaining) [2024-02-02 09:21:06,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 67 remaining) [2024-02-02 09:21:06,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 67 remaining) [2024-02-02 09:21:06,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 67 remaining) [2024-02-02 09:21:06,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 67 remaining) [2024-02-02 09:21:06,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 67 remaining) [2024-02-02 09:21:06,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 67 remaining) [2024-02-02 09:21:06,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 67 remaining) [2024-02-02 09:21:06,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 67 remaining) [2024-02-02 09:21:06,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 67 remaining) [2024-02-02 09:21:06,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 67 remaining) [2024-02-02 09:21:06,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 67 remaining) [2024-02-02 09:21:06,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 67 remaining) [2024-02-02 09:21:06,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 67 remaining) [2024-02-02 09:21:06,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 67 remaining) [2024-02-02 09:21:06,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 67 remaining) [2024-02-02 09:21:06,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 67 remaining) [2024-02-02 09:21:06,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 67 remaining) [2024-02-02 09:21:06,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 67 remaining) [2024-02-02 09:21:06,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 67 remaining) [2024-02-02 09:21:06,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (31 of 67 remaining) [2024-02-02 09:21:06,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 67 remaining) [2024-02-02 09:21:06,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 67 remaining) [2024-02-02 09:21:06,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 67 remaining) [2024-02-02 09:21:06,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 67 remaining) [2024-02-02 09:21:06,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 67 remaining) [2024-02-02 09:21:06,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 67 remaining) [2024-02-02 09:21:06,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 67 remaining) [2024-02-02 09:21:06,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 67 remaining) [2024-02-02 09:21:06,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 67 remaining) [2024-02-02 09:21:06,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 67 remaining) [2024-02-02 09:21:06,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 67 remaining) [2024-02-02 09:21:06,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 67 remaining) [2024-02-02 09:21:06,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 67 remaining) [2024-02-02 09:21:06,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 67 remaining) [2024-02-02 09:21:06,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 67 remaining) [2024-02-02 09:21:06,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 67 remaining) [2024-02-02 09:21:06,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 67 remaining) [2024-02-02 09:21:06,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 67 remaining) [2024-02-02 09:21:06,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 67 remaining) [2024-02-02 09:21:06,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 67 remaining) [2024-02-02 09:21:06,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 67 remaining) [2024-02-02 09:21:06,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 67 remaining) [2024-02-02 09:21:06,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 67 remaining) [2024-02-02 09:21:06,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 67 remaining) [2024-02-02 09:21:06,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 67 remaining) [2024-02-02 09:21:06,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 67 remaining) [2024-02-02 09:21:06,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 67 remaining) [2024-02-02 09:21:06,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 67 remaining) [2024-02-02 09:21:06,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 67 remaining) [2024-02-02 09:21:06,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 67 remaining) [2024-02-02 09:21:06,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 67 remaining) [2024-02-02 09:21:06,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:21:06,525 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-02 09:21:06,530 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:21:06,531 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:21:06,548 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-02-02 09:21:06,548 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-02-02 09:21:06,549 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:21:06 BasicIcfg [2024-02-02 09:21:06,549 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:21:06,553 INFO L158 Benchmark]: Toolchain (without parser) took 2973.83ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 112.0MB in the beginning and 182.8MB in the end (delta: -70.8MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-02-02 09:21:06,553 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:21:06,554 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 116.2MB in the end (delta: 333.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:21:06,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.74ms. Allocated memory is still 155.2MB. Free memory was 112.0MB in the beginning and 95.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-02-02 09:21:06,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.33ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 93.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:21:06,554 INFO L158 Benchmark]: Boogie Preprocessor took 76.75ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 91.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:21:06,554 INFO L158 Benchmark]: RCFGBuilder took 553.13ms. Allocated memory is still 155.2MB. Free memory was 91.3MB in the beginning and 46.9MB in the end (delta: 44.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-02-02 09:21:06,555 INFO L158 Benchmark]: TraceAbstraction took 2024.39ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 46.3MB in the beginning and 182.8MB in the end (delta: -136.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:21:06,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 116.2MB in the end (delta: 333.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.74ms. Allocated memory is still 155.2MB. Free memory was 112.0MB in the beginning and 95.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.33ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 93.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.75ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 91.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.13ms. Allocated memory is still 155.2MB. Free memory was 91.3MB in the beginning and 46.9MB in the end (delta: 44.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2024.39ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 46.3MB in the beginning and 182.8MB in the end (delta: -136.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 86]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] unsigned int s, t, m, T, S; [L79] pthread_t t1, t2; VAL [S=0, T=0, m=0, s=0, t1={5:0}, t2={3:0}, t=0] [L81] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[s],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[S],IntegerLiteral[0U]]]]] [L81] s = __VERIFIER_nondet_uint() [L82] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[S],IntegerLiteral[0U]]]]] [L82] t = __VERIFIER_nondet_uint() [L83] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[S],IntegerLiteral[0U]]]]] [L83] S = s VAL [S=0, T=0, m=0, s=0, t1={5:0}, t2={3:0}] [L84] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]]]] [L84] T = t VAL [S=0, T=49, m=0, s=0, t1={5:0}, t2={3:0}, t=49] [L86] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[1U],IdentifierExpression[s]],BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]]],BinaryExpression[COMPNEQ,IdentifierExpression[s],IntegerLiteral[0U]]]]] VAL [S=0, T=49, m=0, s=0, t1={5:0}, t2={3:0}, t=49] - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 95]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 136 locations, 67 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 326 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 7 mSDtfsCounter, 326 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-02-02 09:21:06,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE