./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.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-misc-2-unrolled-atomic.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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-misc-2-unrolled-atomic.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-2-unrolled-atomic.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-3d25acf-m [2024-01-30 14:23:55,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:23:55,401 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:23:55,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:23:55,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:23:55,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:23:55,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:23:55,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:23:55,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:23:55,438 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:23:55,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:23:55,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:23:55,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:23:55,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:23:55,439 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:23:55,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:23:55,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:23:55,440 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:23:55,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:23:55,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:23:55,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:23:55,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:23:55,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:23:55,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:23:55,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:23:55,442 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:23:55,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:23:55,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:23:55,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:23:55,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:23:55,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:23:55,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:23:55,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:23:55,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:23:55,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:23:55,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:23:55,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:23:55,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:23:55,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:23:55,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:23:55,445 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:23:55,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:23:55,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:23:55,446 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:23:55,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:23:55,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:23:55,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:23:55,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:23:55,790 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:23:55,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2024-01-30 14:23:56,946 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:23:57,146 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:23:57,147 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2024-01-30 14:23:57,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b72c8cdf7/c32a2df2a72d4c6c8daa55f0c2572bda/FLAGee7307f1d [2024-01-30 14:23:57,166 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b72c8cdf7/c32a2df2a72d4c6c8daa55f0c2572bda [2024-01-30 14:23:57,168 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:23:57,169 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:23:57,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-2-unrolled-atomic.wvr.yml/witness.yml [2024-01-30 14:23:57,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:23:57,287 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:23:57,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:23:57,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:23:57,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:23:57,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:23:57" (1/2) ... [2024-01-30 14:23:57,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4709bb54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:57, skipping insertion in model container [2024-01-30 14:23:57,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:23:57" (1/2) ... [2024-01-30 14:23:57,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@64e430a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:57, skipping insertion in model container [2024-01-30 14:23:57,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:23:57" (2/2) ... [2024-01-30 14:23:57,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4709bb54 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57, skipping insertion in model container [2024-01-30 14:23:57,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:23:57" (2/2) ... [2024-01-30 14:23:57,296 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:23:57,322 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:23:57,323 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,323 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (i2 == 0) && (N == 0) [2024-01-30 14:23:57,323 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,323 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,324 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] 0 <= N [2024-01-30 14:23:57,324 INFO L98 nessWitnessExtractor]: Loop invariant at [L53-L60] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,324 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] ((-2147483646 <= i2) && (pos <= 2147483645)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,325 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] ((-2147483647 <= i1) && (pos <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,325 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,325 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] N == 0 [2024-01-30 14:23:57,325 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] ((-2147483647 <= i2) && (-2147483646 <= pos)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,325 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,325 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] N == 0 [2024-01-30 14:23:57,325 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,326 INFO L98 nessWitnessExtractor]: Loop invariant at [L40-L47] (unsigned long )_argptr == 0UL [2024-01-30 14:23:57,326 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (-2147483646 <= pos) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,326 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] ((((((((0LL - (long long )i1) + (long long )pos >= 0LL) && ((long long )i1 + (long long )pos >= 0LL)) && ((0LL - (long long )i1) - (long long )pos >= 0LL)) && ((long long )i1 - (long long )pos >= 0LL)) && (pos == 0)) && (i1 == 0)) && (i2 == 0)) && (N == 0) [2024-01-30 14:23:57,326 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] ((-2147483647 <= pos) && (-2147483647 <= i1)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,326 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] ((-2147483646 <= i1) && (pos <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,326 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (-2147483647 <= pos) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,327 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] ((-2147483647 <= i2) && (pos <= 2147483645)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:23:57,327 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] ((i1 == 0) && (i2 == 0)) && (N == 0) [2024-01-30 14:23:57,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:23:57,478 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-misc-2-unrolled-atomic.wvr.c[2278,2291] [2024-01-30 14:23:57,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:23:57,488 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:23:57,496 WARN L424 MainDispatcher]: Unable to annotate extern int pthread_create (pthread_t *__restrict __newthread, const pthread_attr_t *__restrict __attr, void *(*__start_routine) (void *), void *__restrict __arg) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 3))); with a witness entry 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 [2024-01-30 14:23:57,541 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-misc-2-unrolled-atomic.wvr.c[2278,2291] [2024-01-30 14:23:57,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:23:57,557 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:23:57,557 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57 WrapperNode [2024-01-30 14:23:57,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:23:57,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:23:57,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:23:57,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:23:57,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,607 INFO L138 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-01-30 14:23:57,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:23:57,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:23:57,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:23:57,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:23:57,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,629 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,646 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-30 14:23:57,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:23:57,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:23:57,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:23:57,666 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:23:57,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (1/1) ... [2024-01-30 14:23:57,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:23:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:23:57,722 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) [2024-01-30 14:23:57,741 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 [2024-01-30 14:23:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:23:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:23:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:23:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:23:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:23:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:23:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:23:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:23:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:23:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:23:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:23:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:23:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:23:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:23:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:23:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:23:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:23:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:23:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:23:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:23:57,798 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:23:57,907 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:23:57,909 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:23:58,120 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:23:58,120 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:23:58,227 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:23:58,227 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-30 14:23:58,227 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:23:58 BoogieIcfgContainer [2024-01-30 14:23:58,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:23:58,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:23:58,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:23:58,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:23:58,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:23:57" (1/4) ... [2024-01-30 14:23:58,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a92a8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:23:58, skipping insertion in model container [2024-01-30 14:23:58,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:23:57" (2/4) ... [2024-01-30 14:23:58,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a92a8ad and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:23:58, skipping insertion in model container [2024-01-30 14:23:58,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:57" (3/4) ... [2024-01-30 14:23:58,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a92a8ad and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:23:58, skipping insertion in model container [2024-01-30 14:23:58,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:23:58" (4/4) ... [2024-01-30 14:23:58,235 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2024-01-30 14:23:58,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:23:58,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-01-30 14:23:58,248 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:23:58,290 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-30 14:23:58,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 57 transitions, 128 flow [2024-01-30 14:23:58,342 INFO L124 PetriNetUnfolderBase]: 2/55 cut-off events. [2024-01-30 14:23:58,342 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-30 14:23:58,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 55 events. 2/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 127 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-01-30 14:23:58,345 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 57 transitions, 128 flow [2024-01-30 14:23:58,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 54 transitions, 120 flow [2024-01-30 14:23:58,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:23:58,361 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;@3cc696c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:23:58,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-01-30 14:23:58,363 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:23:58,363 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:23:58,363 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:23:58,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:58,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:23:58,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-01-30 14:23:58,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash 11655, now seen corresponding path program 1 times [2024-01-30 14:23:58,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:58,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422052859] [2024-01-30 14:23:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:58,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:58,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:58,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:58,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422052859] [2024-01-30 14:23:58,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422052859] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:58,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:58,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:23:58,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824273845] [2024-01-30 14:23:58,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:58,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:58,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:58,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:58,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:58,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-01-30 14:23:58,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:23:58,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:58,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-01-30 14:23:58,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:58,735 INFO L124 PetriNetUnfolderBase]: 249/523 cut-off events. [2024-01-30 14:23:58,736 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-01-30 14:23:58,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 523 events. 249/523 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3527 event pairs, 240 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 896. Up to 450 conditions per place. [2024-01-30 14:23:58,741 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 32 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-01-30 14:23:58,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 51 transitions, 182 flow [2024-01-30 14:23:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:58,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-01-30 14:23:58,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5497076023391813 [2024-01-30 14:23:58,752 INFO L175 Difference]: Start difference. First operand has 59 places, 54 transitions, 120 flow. Second operand 3 states and 94 transitions. [2024-01-30 14:23:58,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 51 transitions, 182 flow [2024-01-30 14:23:58,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:23:58,757 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 110 flow [2024-01-30 14:23:58,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, 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=110, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-01-30 14:23:58,762 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2024-01-30 14:23:58,762 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 110 flow [2024-01-30 14:23:58,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:23:58,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:58,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:23:58,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:23:58,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-01-30 14:23:58,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:58,764 INFO L85 PathProgramCache]: Analyzing trace with hash 361702, now seen corresponding path program 1 times [2024-01-30 14:23:58,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:58,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931781461] [2024-01-30 14:23:58,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:58,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:58,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:58,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931781461] [2024-01-30 14:23:58,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931781461] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:58,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:58,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:23:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188543740] [2024-01-30 14:23:58,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:58,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:58,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:58,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 57 [2024-01-30 14:23:58,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:23:58,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:58,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 57 [2024-01-30 14:23:58,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:58,903 INFO L124 PetriNetUnfolderBase]: 249/522 cut-off events. [2024-01-30 14:23:58,903 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:23:58,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 522 events. 249/522 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3477 event pairs, 240 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 977. Up to 448 conditions per place. [2024-01-30 14:23:58,907 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 31 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-30 14:23:58,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 50 transitions, 174 flow [2024-01-30 14:23:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-01-30 14:23:58,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5497076023391813 [2024-01-30 14:23:58,909 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 110 flow. Second operand 3 states and 94 transitions. [2024-01-30 14:23:58,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 50 transitions, 174 flow [2024-01-30 14:23:58,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:23:58,910 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 108 flow [2024-01-30 14:23:58,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2024-01-30 14:23:58,911 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -6 predicate places. [2024-01-30 14:23:58,911 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 108 flow [2024-01-30 14:23:58,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:23:58,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:58,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:23:58,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:23:58,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-01-30 14:23:58,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:58,913 INFO L85 PathProgramCache]: Analyzing trace with hash 11213110, now seen corresponding path program 1 times [2024-01-30 14:23:58,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:58,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754808364] [2024-01-30 14:23:58,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:58,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:58,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:58,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754808364] [2024-01-30 14:23:58,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754808364] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:58,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:58,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:23:58,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842951655] [2024-01-30 14:23:58,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:58,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:58,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:58,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-01-30 14:23:58,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-01-30 14:23:58,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:58,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-01-30 14:23:58,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:59,064 INFO L124 PetriNetUnfolderBase]: 221/467 cut-off events. [2024-01-30 14:23:59,065 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:23:59,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 467 events. 221/467 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 3321 event pairs, 213 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 871. Up to 399 conditions per place. [2024-01-30 14:23:59,070 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 29 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-01-30 14:23:59,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 168 flow [2024-01-30 14:23:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:59,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-01-30 14:23:59,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730994152046783 [2024-01-30 14:23:59,076 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 108 flow. Second operand 3 states and 98 transitions. [2024-01-30 14:23:59,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 168 flow [2024-01-30 14:23:59,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:23:59,078 INFO L231 Difference]: Finished difference. Result has 52 places, 49 transitions, 106 flow [2024-01-30 14:23:59,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=50, 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=3, PETRI_FLOW=106, PETRI_PLACES=52, PETRI_TRANSITIONS=49} [2024-01-30 14:23:59,080 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -7 predicate places. [2024-01-30 14:23:59,081 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 106 flow [2024-01-30 14:23:59,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-01-30 14:23:59,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:59,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:23:59,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:23:59,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-01-30 14:23:59,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:59,082 INFO L85 PathProgramCache]: Analyzing trace with hash 347606803, now seen corresponding path program 1 times [2024-01-30 14:23:59,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:59,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731336019] [2024-01-30 14:23:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:59,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:59,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:59,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731336019] [2024-01-30 14:23:59,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731336019] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:59,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:59,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:23:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883450644] [2024-01-30 14:23:59,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:59,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:59,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:59,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2024-01-30 14:23:59,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-01-30 14:23:59,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:59,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2024-01-30 14:23:59,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:59,239 INFO L124 PetriNetUnfolderBase]: 197/431 cut-off events. [2024-01-30 14:23:59,240 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:23:59,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 431 events. 197/431 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 3082 event pairs, 189 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 790. Up to 355 conditions per place. [2024-01-30 14:23:59,244 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 27 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-01-30 14:23:59,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 48 transitions, 162 flow [2024-01-30 14:23:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-01-30 14:23:59,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2024-01-30 14:23:59,247 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 106 flow. Second operand 3 states and 102 transitions. [2024-01-30 14:23:59,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 48 transitions, 162 flow [2024-01-30 14:23:59,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 48 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:23:59,249 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 104 flow [2024-01-30 14:23:59,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-01-30 14:23:59,250 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -8 predicate places. [2024-01-30 14:23:59,250 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 104 flow [2024-01-30 14:23:59,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-01-30 14:23:59,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:59,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:23:59,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:23:59,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-01-30 14:23:59,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2109090596, now seen corresponding path program 1 times [2024-01-30 14:23:59,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:59,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517923030] [2024-01-30 14:23:59,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:59,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:23:59,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:23:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:23:59,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:23:59,307 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:23:59,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 44 remaining) [2024-01-30 14:23:59,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 44 remaining) [2024-01-30 14:23:59,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 44 remaining) [2024-01-30 14:23:59,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 44 remaining) [2024-01-30 14:23:59,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 44 remaining) [2024-01-30 14:23:59,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 44 remaining) [2024-01-30 14:23:59,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 44 remaining) [2024-01-30 14:23:59,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 44 remaining) [2024-01-30 14:23:59,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 44 remaining) [2024-01-30 14:23:59,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 44 remaining) [2024-01-30 14:23:59,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 44 remaining) [2024-01-30 14:23:59,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 44 remaining) [2024-01-30 14:23:59,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 44 remaining) [2024-01-30 14:23:59,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (20 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 44 remaining) [2024-01-30 14:23:59,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 44 remaining) [2024-01-30 14:23:59,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 44 remaining) [2024-01-30 14:23:59,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 44 remaining) [2024-01-30 14:23:59,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 44 remaining) [2024-01-30 14:23:59,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 44 remaining) [2024-01-30 14:23:59,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 44 remaining) [2024-01-30 14:23:59,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 44 remaining) [2024-01-30 14:23:59,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 44 remaining) [2024-01-30 14:23:59,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 44 remaining) [2024-01-30 14:23:59,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:23:59,323 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-30 14:23:59,329 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:23:59,329 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:23:59,350 INFO L503 ceAbstractionStarter]: Automizer considered 23 witness invariants [2024-01-30 14:23:59,350 INFO L504 ceAbstractionStarter]: WitnessConsidered=23 [2024-01-30 14:23:59,352 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:23:59 BasicIcfg [2024-01-30 14:23:59,352 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:23:59,353 INFO L158 Benchmark]: Toolchain (without parser) took 2065.56ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 115.4MB in the beginning and 128.7MB in the end (delta: -13.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2024-01-30 14:23:59,353 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 91.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:23:59,354 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:23:59,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.35ms. Allocated memory is still 151.0MB. Free memory was 115.4MB in the beginning and 100.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-30 14:23:59,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.31ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:23:59,355 INFO L158 Benchmark]: Boogie Preprocessor took 57.64ms. Allocated memory is still 151.0MB. Free memory was 98.5MB in the beginning and 96.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:23:59,355 INFO L158 Benchmark]: RCFGBuilder took 561.60ms. Allocated memory is still 151.0MB. Free memory was 96.2MB in the beginning and 83.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-01-30 14:23:59,355 INFO L158 Benchmark]: TraceAbstraction took 1122.82ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 83.1MB in the beginning and 128.7MB in the end (delta: -45.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:23:59,358 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 91.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.35ms. Allocated memory is still 151.0MB. Free memory was 115.4MB in the beginning and 100.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.31ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.64ms. Allocated memory is still 151.0MB. Free memory was 98.5MB in the beginning and 96.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 561.60ms. Allocated memory is still 151.0MB. Free memory was 96.2MB in the beginning and 83.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1122.82ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 83.1MB in the beginning and 128.7MB in the end (delta: -45.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 76]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L37] int pos, i1, i2, N; [L66] pthread_t t1, t2; VAL [N=0, i1=0, i2=0, pos=0, t1={5:0}, t2={3:0}] [L69] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[i1]]],CastExpression[ACSLType[long long],IdentifierExpression[pos]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[i1]],CastExpression[ACSLType[long long],IdentifierExpression[pos]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[i1]]],CastExpression[ACSLType[long long],IdentifierExpression[pos]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[i1]],CastExpression[ACSLType[long long],IdentifierExpression[pos]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[pos],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0]]]]] [L69] pos = __VERIFIER_nondet_int() [L70] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0]]]]] [L70] i1 = __VERIFIER_nondet_int() [L71] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0]]]]] [L71] i2 = __VERIFIER_nondet_int() [L72] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0]]]] [L72] N = __VERIFIER_nondet_int() [L75] CALL assume_abort_if_not( pos == i1 && pos == i2 && pos == 0 ) [L34] COND FALSE !(!cond) [L75] RET assume_abort_if_not( pos == i1 && pos == i2 && pos == 0 ) [L76] CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[N]]]] VAL [N=-1, i1=0, i2=0, pos=0, t1={5:0}, t2={3:0}] - UnprovableResult [Line: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - 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: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 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: 59]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 84]: 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: 78]: 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: 79]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 92 locations, 44 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: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 15 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-30 14:23:59,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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