./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.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/parallel-simple-equiv.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:57:54,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:57:54,958 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:57:54,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:57:54,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:57:54,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:57:54,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:57:54,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:57:54,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:57:54,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:57:54,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:57:54,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:57:54,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:57:54,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:57:54,994 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:57:54,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:57:54,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:57:54,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:57:54,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:57:54,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:57:54,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:57:54,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:57:54,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:57:54,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:57:54,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:57:54,996 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:57:54,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:57:54,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:57:54,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:57:54,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:57:54,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:57:54,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:57:54,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:57:54,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:57:54,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:57:54,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:57:54,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:57:55,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:57:55,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:57:55,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:57:55,000 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:57:55,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:57:55,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:57:55,001 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:57:55,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:57:55,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:57:55,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:57:55,357 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:57:55,357 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:57:55,358 INFO L431 ainManager$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/parallel-simple-equiv.wvr.yml/witness.yml [2024-01-29 22:57:55,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:57:55,444 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:57:55,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-29 22:57:56,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:57:56,601 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:57:56,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-29 22:57:56,607 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8aafad1e/3670413902e448d9be0ffa5fc39f3508/FLAG8326e5ee5 [2024-01-29 22:57:56,616 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8aafad1e/3670413902e448d9be0ffa5fc39f3508 [2024-01-29 22:57:56,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:57:56,618 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:57:56,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:57:56,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:57:56,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:57:56,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:55" (1/2) ... [2024-01-29 22:57:56,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d002cf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:57:56, skipping insertion in model container [2024-01-29 22:57:56,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:55" (1/2) ... [2024-01-29 22:57:56,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55333f1f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:57:56, skipping insertion in model container [2024-01-29 22:57:56,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:57:56" (2/2) ... [2024-01-29 22:57:56,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d002cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56, skipping insertion in model container [2024-01-29 22:57:56,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:57:56" (2/2) ... [2024-01-29 22:57:56,631 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:57:56,646 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:57:56,646 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,646 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,647 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,647 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,647 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,647 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,647 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,647 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,647 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (x_1 == 0U) && (temp_2 == 0U) [2024-01-29 22:57:56,648 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] x_1 == 0U [2024-01-29 22:57:56,648 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,648 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] ((0LL - (long long )x_0) + (long long )x_1 >= 0LL) && ((long long )x_0 + (long long )x_1 >= 0LL) [2024-01-29 22:57:56,648 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) + (long long )x_1 >= 0LL [2024-01-29 22:57:56,648 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )x_0) + (long long )x_1 >= 0LL) && ((long long )x_0 + (long long )x_1 >= 0LL)) && (x_0 == 0U) [2024-01-29 22:57:56,648 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )x_0) + (long long )x_1 >= 0LL) && ((long long )x_0 + (long long )x_1 >= 0LL)) && ((long long )x_0 - (long long )x_1 >= 0LL) [2024-01-29 22:57:56,649 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )x_0) + (long long )x_1 >= 0LL) && ((long long )x_0 + (long long )x_1 >= 0LL)) && (x_1 == 0U) [2024-01-29 22:57:56,649 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )x_0) + (long long )x_1 >= 0LL) && ((long long )x_0 + (long long )x_1 >= 0LL)) && (temp_2 == 0U) [2024-01-29 22:57:56,649 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )x_0) + (long long )x_1 >= 0LL) && ((long long )x_0 + (long long )x_1 >= 0LL)) && ((0LL - (long long )x_0) - (long long )x_1 >= 0LL) [2024-01-29 22:57:56,649 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] temp_2 == 0U [2024-01-29 22:57:56,649 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,649 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,649 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (temp_2 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:57:56,650 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] temp_2 == 0U [2024-01-29 22:57:56,650 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 22:57:56,665 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:57:56,782 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/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-29 22:57:56,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:57:56,791 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 [2024-01-29 22:57:56,842 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/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-29 22:57:56,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:57:56,858 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:57:56,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56 WrapperNode [2024-01-29 22:57:56,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:57:56,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:57:56,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:57:56,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:57:56,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,894 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2024-01-29 22:57:56,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:57:56,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:57:56,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:57:56,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:57:56,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,905 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,930 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-29 22:57:56,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:57:56,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:57:56,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:57:56,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:57:56,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (1/1) ... [2024-01-29 22:57:56,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:57:56,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:57:56,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:57:56,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:57:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:57:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:57:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:57:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:57:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:57:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 22:57:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 22:57:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:57:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:57:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:57:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:57:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:57:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:57:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:57:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:57:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:57:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:57:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:57:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:57:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:57:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:57:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:57:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:57:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:57:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:57:57,008 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:57:57,089 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:57:57,091 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:57:57,329 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:57:57,329 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:57:57,446 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:57:57,447 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:57:57,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:57:57 BoogieIcfgContainer [2024-01-29 22:57:57,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:57:57,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:57:57,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:57:57,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:57:57,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:55" (1/4) ... [2024-01-29 22:57:57,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9fbdf0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:57:57, skipping insertion in model container [2024-01-29 22:57:57,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:57:56" (2/4) ... [2024-01-29 22:57:57,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9fbdf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:57:57, skipping insertion in model container [2024-01-29 22:57:57,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:56" (3/4) ... [2024-01-29 22:57:57,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9fbdf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:57:57, skipping insertion in model container [2024-01-29 22:57:57,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:57:57" (4/4) ... [2024-01-29 22:57:57,453 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2024-01-29 22:57:57,466 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:57:57,467 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-01-29 22:57:57,468 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:57:57,526 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-29 22:57:57,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 66 transitions, 153 flow [2024-01-29 22:57:57,606 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-01-29 22:57:57,606 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 22:57:57,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 0/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-29 22:57:57,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 66 transitions, 153 flow [2024-01-29 22:57:57,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 62 transitions, 142 flow [2024-01-29 22:57:57,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:57:57,629 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;@b96d5b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:57:57,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-29 22:57:57,632 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:57:57,633 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:57:57,633 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:57:57,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:57,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:57:57,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 22:57:57,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash 9772, now seen corresponding path program 1 times [2024-01-29 22:57:57,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:57,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130235138] [2024-01-29 22:57:57,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:57,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:57,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:57,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:57,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130235138] [2024-01-29 22:57:57,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130235138] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:57,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:57,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:57:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022982264] [2024-01-29 22:57:57,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:57,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:57:57,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:57,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:57:57,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:57:57,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-29 22:57:57,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:57,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:57,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-29 22:57:57,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:58,260 INFO L124 PetriNetUnfolderBase]: 609/1153 cut-off events. [2024-01-29 22:57:58,261 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-01-29 22:57:58,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2207 conditions, 1153 events. 609/1153 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7154 event pairs, 609 based on Foata normal form. 5/927 useless extension candidates. Maximal degree in co-relation 1850. Up to 966 conditions per place. [2024-01-29 22:57:58,275 INFO L140 encePairwiseOnDemand]: 56/66 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-29 22:57:58,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 184 flow [2024-01-29 22:57:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:57:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:57:58,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-01-29 22:57:58,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-01-29 22:57:58,287 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 142 flow. Second operand 3 states and 121 transitions. [2024-01-29 22:57:58,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 184 flow [2024-01-29 22:57:58,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 172 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 22:57:58,296 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 118 flow [2024-01-29 22:57:58,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2024-01-29 22:57:58,300 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2024-01-29 22:57:58,301 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 118 flow [2024-01-29 22:57:58,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:58,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:58,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 22:57:58,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:57:58,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 22:57:58,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash 303258, now seen corresponding path program 1 times [2024-01-29 22:57:58,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:58,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355480961] [2024-01-29 22:57:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:58,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:58,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:58,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355480961] [2024-01-29 22:57:58,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355480961] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:58,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:58,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:57:58,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905301136] [2024-01-29 22:57:58,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:58,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:58,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:58,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:58,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:58,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 66 [2024-01-29 22:57:58,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:58,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:58,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 66 [2024-01-29 22:57:58,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:58,576 INFO L124 PetriNetUnfolderBase]: 609/1151 cut-off events. [2024-01-29 22:57:58,576 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-29 22:57:58,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2153 conditions, 1151 events. 609/1151 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7208 event pairs, 609 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 2132. Up to 963 conditions per place. [2024-01-29 22:57:58,582 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 31 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2024-01-29 22:57:58,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 182 flow [2024-01-29 22:57:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-01-29 22:57:58,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2024-01-29 22:57:58,587 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 118 flow. Second operand 4 states and 136 transitions. [2024-01-29 22:57:58,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 182 flow [2024-01-29 22:57:58,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 52 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:58,588 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 116 flow [2024-01-29 22:57:58,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2024-01-29 22:57:58,590 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2024-01-29 22:57:58,590 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 116 flow [2024-01-29 22:57:58,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:58,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:58,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:58,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:57:58,591 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 22:57:58,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1144083842, now seen corresponding path program 1 times [2024-01-29 22:57:58,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:58,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477007520] [2024-01-29 22:57:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:58,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:58,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:58,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477007520] [2024-01-29 22:57:58,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477007520] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:58,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:58,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:57:58,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150229524] [2024-01-29 22:57:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:58,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:57:58,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:58,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:57:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:57:58,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-29 22:57:58,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 116 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) [2024-01-29 22:57:58,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:58,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-29 22:57:58,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:58,781 INFO L124 PetriNetUnfolderBase]: 609/1150 cut-off events. [2024-01-29 22:57:58,782 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-29 22:57:58,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2150 conditions, 1150 events. 609/1150 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7220 event pairs, 609 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 2125. Up to 964 conditions per place. [2024-01-29 22:57:58,788 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 29 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-01-29 22:57:58,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 51 transitions, 176 flow [2024-01-29 22:57:58,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:57:58,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:57:58,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-01-29 22:57:58,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2024-01-29 22:57:58,791 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 116 flow. Second operand 3 states and 125 transitions. [2024-01-29 22:57:58,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 51 transitions, 176 flow [2024-01-29 22:57:58,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:57:58,793 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 112 flow [2024-01-29 22:57:58,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-01-29 22:57:58,794 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2024-01-29 22:57:58,794 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 112 flow [2024-01-29 22:57:58,795 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) [2024-01-29 22:57:58,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:58,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:58,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:57:58,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 22:57:58,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1106860432, now seen corresponding path program 1 times [2024-01-29 22:57:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:58,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649132762] [2024-01-29 22:57:58,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:58,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:58,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:58,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649132762] [2024-01-29 22:57:58,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649132762] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:58,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:58,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:58,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201171338] [2024-01-29 22:57:58,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:58,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:58,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:58,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-29 22:57:58,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:58,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:58,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-29 22:57:58,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:59,043 INFO L124 PetriNetUnfolderBase]: 803/1564 cut-off events. [2024-01-29 22:57:59,043 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-01-29 22:57:59,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2890 conditions, 1564 events. 803/1564 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 10526 event pairs, 421 based on Foata normal form. 1/1316 useless extension candidates. Maximal degree in co-relation 2868. Up to 845 conditions per place. [2024-01-29 22:57:59,051 INFO L140 encePairwiseOnDemand]: 59/66 looper letters, 46 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2024-01-29 22:57:59,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 70 transitions, 259 flow [2024-01-29 22:57:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 165 transitions. [2024-01-29 22:57:59,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-01-29 22:57:59,053 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 112 flow. Second operand 4 states and 165 transitions. [2024-01-29 22:57:59,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 70 transitions, 259 flow [2024-01-29 22:57:59,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:59,055 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 131 flow [2024-01-29 22:57:59,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2024-01-29 22:57:59,056 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2024-01-29 22:57:59,057 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 131 flow [2024-01-29 22:57:59,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:59,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:59,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:59,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:57:59,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 22:57:59,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1962429827, now seen corresponding path program 1 times [2024-01-29 22:57:59,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:59,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325146803] [2024-01-29 22:57:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:59,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:59,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:59,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325146803] [2024-01-29 22:57:59,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325146803] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:59,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:59,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:59,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334578649] [2024-01-29 22:57:59,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:59,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:59,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:59,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:59,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:59,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-01-29 22:57:59,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:59,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:59,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-01-29 22:57:59,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:59,321 INFO L124 PetriNetUnfolderBase]: 803/1535 cut-off events. [2024-01-29 22:57:59,321 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2024-01-29 22:57:59,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3096 conditions, 1535 events. 803/1535 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 9788 event pairs, 549 based on Foata normal form. 58/1474 useless extension candidates. Maximal degree in co-relation 1105. Up to 1170 conditions per place. [2024-01-29 22:57:59,328 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 41 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-29 22:57:59,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 243 flow [2024-01-29 22:57:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions. [2024-01-29 22:57:59,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-01-29 22:57:59,330 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 131 flow. Second operand 4 states and 172 transitions. [2024-01-29 22:57:59,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 243 flow [2024-01-29 22:57:59,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:59,332 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 122 flow [2024-01-29 22:57:59,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-01-29 22:57:59,332 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2024-01-29 22:57:59,333 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 122 flow [2024-01-29 22:57:59,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:59,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:59,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:59,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:57:59,334 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 22:57:59,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash 705782838, now seen corresponding path program 1 times [2024-01-29 22:57:59,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:59,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652578412] [2024-01-29 22:57:59,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:59,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:57:59,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:57:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:57:59,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:57:59,365 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:57:59,366 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-29 22:57:59,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 42 remaining) [2024-01-29 22:57:59,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-29 22:57:59,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-29 22:57:59,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-29 22:57:59,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-29 22:57:59,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-29 22:57:59,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-29 22:57:59,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-29 22:57:59,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-29 22:57:59,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-29 22:57:59,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-29 22:57:59,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 42 remaining) [2024-01-29 22:57:59,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-29 22:57:59,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-29 22:57:59,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-29 22:57:59,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-29 22:57:59,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-29 22:57:59,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-29 22:57:59,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-29 22:57:59,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-29 22:57:59,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-29 22:57:59,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-29 22:57:59,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-29 22:57:59,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-29 22:57:59,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (16 of 42 remaining) [2024-01-29 22:57:59,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 42 remaining) [2024-01-29 22:57:59,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 42 remaining) [2024-01-29 22:57:59,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 42 remaining) [2024-01-29 22:57:59,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-29 22:57:59,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-29 22:57:59,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-29 22:57:59,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 42 remaining) [2024-01-29 22:57:59,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-29 22:57:59,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-29 22:57:59,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-29 22:57:59,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-29 22:57:59,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-29 22:57:59,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-29 22:57:59,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-29 22:57:59,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-29 22:57:59,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-29 22:57:59,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:57:59,375 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-29 22:57:59,380 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:57:59,380 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:57:59,397 INFO L503 ceAbstractionStarter]: Automizer considered 24 witness invariants [2024-01-29 22:57:59,397 INFO L504 ceAbstractionStarter]: WitnessConsidered=24 [2024-01-29 22:57:59,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:57:59 BasicIcfg [2024-01-29 22:57:59,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:57:59,398 INFO L158 Benchmark]: Toolchain (without parser) took 2780.45ms. Allocated memory was 125.8MB in the beginning and 241.2MB in the end (delta: 115.3MB). Free memory was 66.5MB in the beginning and 158.9MB in the end (delta: -92.4MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-01-29 22:57:59,399 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:59,399 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:59,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.66ms. Allocated memory is still 125.8MB. Free memory was 66.1MB in the beginning and 50.7MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-29 22:57:59,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.70ms. Allocated memory is still 125.8MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:57:59,400 INFO L158 Benchmark]: Boogie Preprocessor took 45.89ms. Allocated memory is still 125.8MB. Free memory was 48.6MB in the beginning and 96.4MB in the end (delta: -47.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-01-29 22:57:59,400 INFO L158 Benchmark]: RCFGBuilder took 505.89ms. Allocated memory was 125.8MB in the beginning and 190.8MB in the end (delta: 65.0MB). Free memory was 96.4MB in the beginning and 130.5MB in the end (delta: -34.1MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2024-01-29 22:57:59,400 INFO L158 Benchmark]: TraceAbstraction took 1949.51ms. Allocated memory was 190.8MB in the beginning and 241.2MB in the end (delta: 50.3MB). Free memory was 129.4MB in the beginning and 158.9MB in the end (delta: -29.5MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-01-29 22:57:59,401 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.66ms. Allocated memory is still 125.8MB. Free memory was 66.1MB in the beginning and 50.7MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.70ms. Allocated memory is still 125.8MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.89ms. Allocated memory is still 125.8MB. Free memory was 48.6MB in the beginning and 96.4MB in the end (delta: -47.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 505.89ms. Allocated memory was 125.8MB in the beginning and 190.8MB in the end (delta: 65.0MB). Free memory was 96.4MB in the beginning and 130.5MB in the end (delta: -34.1MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1949.51ms. Allocated memory was 190.8MB in the beginning and 241.2MB in the end (delta: 50.3MB). Free memory was 129.4MB in the beginning and 158.9MB in the end (delta: -29.5MB). Peak memory consumption was 20.7MB. 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 x_0, x_1, temp_2; [L64] 0 pthread_t t1, t2, t3; VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[x_0],IntegerLiteral[0U]]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]]] [L67] 0 x_0 = __VERIFIER_nondet_uint() [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_1=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]]] [L68] 0 x_1 = __VERIFIER_nondet_uint() [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] [L69] 0 temp_2 = __VERIFIER_nondet_uint() [L72] CALL 0 assume_abort_if_not( x_0 == x_1 ) [L35] COND FALSE 0 !(!cond) [L72] RET 0 assume_abort_if_not( x_0 == x_1 ) [L74] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={6:0}, t2={5:0}, t3={3:0}, x_0=0, x_1=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, x_0=0, x_1=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 x_0++ [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, temp_2=1, x_0=1, x_1=0] - 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: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: 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: 55]: 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: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: 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: 67]: 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: 67]: 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: 67]: 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: 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: 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: 82]: 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: 74]: 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: 76]: 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: 75]: 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 7 procedures, 101 locations, 42 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: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 259 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 445 IncrementalHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 29 mSDtfsCounter, 445 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2024-01-29 22:57:59,422 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