./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 59af5db6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/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-59af5db-m [2024-02-02 09:20:10,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:20:11,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:20:11,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:20:11,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:20:11,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:20:11,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:20:11,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:20:11,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:20:11,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:20:11,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:20:11,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:20:11,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:20:11,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:20:11,086 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:20:11,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:20:11,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:20:11,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:20:11,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:20:11,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:20:11,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:20:11,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:20:11,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:20:11,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:20:11,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:20:11,089 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:20:11,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:20:11,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:20:11,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:20:11,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:20:11,092 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:20:11,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:20:11,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:11,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:20:11,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:20:11,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:20:11,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:20:11,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:20:11,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:20:11,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:20:11,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:20:11,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:20:11,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:20:11,094 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:20:11,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:20:11,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:20:11,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:20:11,433 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:20:11,434 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:20:11,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2024-02-02 09:20:12,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:20:12,856 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:20:12,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2024-02-02 09:20:12,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/338a63a9c/2aaf06ffe2de43fe96f7db2e08617099/FLAGbc563349d [2024-02-02 09:20:12,878 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/338a63a9c/2aaf06ffe2de43fe96f7db2e08617099 [2024-02-02 09:20:12,883 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:20:12,884 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:20:12,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-2-unrolled-atomic.wvr.yml/witness.yml [2024-02-02 09:20:13,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:20:13,015 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:20:13,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:13,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:20:13,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:20:13,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:12" (1/2) ... [2024-02-02 09:20:13,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4303f5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:13, skipping insertion in model container [2024-02-02 09:20:13,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:12" (1/2) ... [2024-02-02 09:20:13,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5cc7b43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:13, skipping insertion in model container [2024-02-02 09:20:13,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:13" (2/2) ... [2024-02-02 09:20:13,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4303f5af and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13, skipping insertion in model container [2024-02-02 09:20:13,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:13" (2/2) ... [2024-02-02 09:20:13,027 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:20:13,058 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:20:13,059 INFO L101 nessWitnessExtractor]: Loop invariant at [L53-L60] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,059 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] N == 0 [2024-02-02 09:20:13,059 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] (-2147483646 <= pos) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,060 INFO L101 nessWitnessExtractor]: Location invariant before [L46-L46] ((-2147483646 <= i1) && (pos <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,060 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] ((-2147483647 <= i2) && (pos <= 2147483645)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,061 INFO L101 nessWitnessExtractor]: Location invariant before [L57-L57] ((-2147483647 <= i2) && (-2147483646 <= pos)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,061 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (-2147483647 <= pos) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,061 INFO L101 nessWitnessExtractor]: Location invariant before [L76-L76] 0 <= N [2024-02-02 09:20:13,061 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,061 INFO L101 nessWitnessExtractor]: Location invariant before [L22-L25] N == 0 [2024-02-02 09:20:13,061 INFO L101 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,062 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,062 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (i2 == 0) && (N == 0) [2024-02-02 09:20:13,062 INFO L101 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) [2024-02-02 09:20:13,062 INFO L101 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,062 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] ((-2147483647 <= pos) && (-2147483647 <= i1)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,063 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,063 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,063 INFO L101 nessWitnessExtractor]: Loop invariant at [L40-L47] (unsigned long )_argptr == 0UL [2024-02-02 09:20:13,063 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] ((-2147483647 <= i1) && (pos <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,063 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] ((i1 == 0) && (i2 == 0)) && (N == 0) [2024-02-02 09:20:13,064 INFO L101 nessWitnessExtractor]: Location invariant before [L59-L59] ((-2147483646 <= i2) && (pos <= 2147483645)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:13,084 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:20:13,262 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] [2024-02-02 09:20:13,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:13,277 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:20:13,290 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 [2024-02-02 09:20:13,366 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] [2024-02-02 09:20:13,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:13,382 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:20:13,382 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13 WrapperNode [2024-02-02 09:20:13,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:13,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:13,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:20:13,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:20:13,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,433 INFO L138 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-02-02 09:20:13,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:13,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:20:13,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:20:13,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:20:13,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,537 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-02-02 09:20:13,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:20:13,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:20:13,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:20:13,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:20:13,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (1/1) ... [2024-02-02 09:20:13,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:13,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:20:13,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-02 09:20:13,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-02 09:20:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:20:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:20:13,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:20:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:20:13,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:20:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:20:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:20:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:20:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:20:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:20:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:20:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:20:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:20:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:20:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:20:13,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:20:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:20:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:20:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:20:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:20:13,634 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:20:13,735 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:20:13,737 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:20:14,022 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:20:14,026 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:20:14,194 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:20:14,194 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-02-02 09:20:14,194 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:14 BoogieIcfgContainer [2024-02-02 09:20:14,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:20:14,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:20:14,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:20:14,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:20:14,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:20:12" (1/4) ... [2024-02-02 09:20:14,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494266d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:20:14, skipping insertion in model container [2024-02-02 09:20:14,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:13" (2/4) ... [2024-02-02 09:20:14,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494266d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:20:14, skipping insertion in model container [2024-02-02 09:20:14,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:13" (3/4) ... [2024-02-02 09:20:14,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494266d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:20:14, skipping insertion in model container [2024-02-02 09:20:14,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:14" (4/4) ... [2024-02-02 09:20:14,205 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2024-02-02 09:20:14,221 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:20:14,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-02-02 09:20:14,222 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:20:14,301 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-02 09:20:14,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 57 transitions, 128 flow [2024-02-02 09:20:14,378 INFO L124 PetriNetUnfolderBase]: 2/55 cut-off events. [2024-02-02 09:20:14,379 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-02 09:20:14,384 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. [2024-02-02 09:20:14,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 57 transitions, 128 flow [2024-02-02 09:20:14,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 54 transitions, 120 flow [2024-02-02 09:20:14,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:20:14,412 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;@1330d45d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:20:14,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-02-02 09:20:14,414 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:20:14,415 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:20:14,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:20:14,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:14,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:20:14,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-02-02 09:20:14,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 11655, now seen corresponding path program 1 times [2024-02-02 09:20:14,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:14,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057720493] [2024-02-02 09:20:14,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:14,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:14,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:14,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057720493] [2024-02-02 09:20:14,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057720493] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:14,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:14,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:14,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961299307] [2024-02-02 09:20:14,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:14,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:14,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:14,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-02-02 09:20:14,769 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) [2024-02-02 09:20:14,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:14,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-02-02 09:20:14,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:15,010 INFO L124 PetriNetUnfolderBase]: 249/523 cut-off events. [2024-02-02 09:20:15,010 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-02-02 09:20:15,015 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. [2024-02-02 09:20:15,022 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 32 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-02-02 09:20:15,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 51 transitions, 182 flow [2024-02-02 09:20:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:15,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-02-02 09:20:15,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5497076023391813 [2024-02-02 09:20:15,038 INFO L175 Difference]: Start difference. First operand has 59 places, 54 transitions, 120 flow. Second operand 3 states and 94 transitions. [2024-02-02 09:20:15,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 51 transitions, 182 flow [2024-02-02 09:20:15,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:20:15,051 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 110 flow [2024-02-02 09:20:15,053 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} [2024-02-02 09:20:15,057 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2024-02-02 09:20:15,057 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 110 flow [2024-02-02 09:20:15,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:15,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:15,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:20:15,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:20:15,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-02-02 09:20:15,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash 361702, now seen corresponding path program 1 times [2024-02-02 09:20:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:15,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834297405] [2024-02-02 09:20:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:15,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:15,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:15,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834297405] [2024-02-02 09:20:15,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834297405] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:15,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:15,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056001136] [2024-02-02 09:20:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:15,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:15,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:15,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:15,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 57 [2024-02-02 09:20:15,169 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) [2024-02-02 09:20:15,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:15,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 57 [2024-02-02 09:20:15,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:15,267 INFO L124 PetriNetUnfolderBase]: 249/522 cut-off events. [2024-02-02 09:20:15,268 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:20:15,269 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. [2024-02-02 09:20:15,272 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 31 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-02-02 09:20:15,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 50 transitions, 174 flow [2024-02-02 09:20:15,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-02-02 09:20:15,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5497076023391813 [2024-02-02 09:20:15,275 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 110 flow. Second operand 3 states and 94 transitions. [2024-02-02 09:20:15,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 50 transitions, 174 flow [2024-02-02 09:20:15,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:15,277 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 108 flow [2024-02-02 09:20:15,277 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} [2024-02-02 09:20:15,278 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -6 predicate places. [2024-02-02 09:20:15,278 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 108 flow [2024-02-02 09:20:15,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:15,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:15,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:20:15,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:20:15,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-02-02 09:20:15,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:15,280 INFO L85 PathProgramCache]: Analyzing trace with hash 11213110, now seen corresponding path program 1 times [2024-02-02 09:20:15,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:15,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844051553] [2024-02-02 09:20:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:15,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:15,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:15,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844051553] [2024-02-02 09:20:15,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844051553] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:15,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:15,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:15,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255928354] [2024-02-02 09:20:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:15,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:15,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:15,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:15,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:15,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-02-02 09:20:15,365 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) [2024-02-02 09:20:15,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:15,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-02-02 09:20:15,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:15,448 INFO L124 PetriNetUnfolderBase]: 221/467 cut-off events. [2024-02-02 09:20:15,448 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:20:15,449 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. [2024-02-02 09:20:15,452 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 29 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-02-02 09:20:15,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 168 flow [2024-02-02 09:20:15,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:15,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:15,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-02-02 09:20:15,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730994152046783 [2024-02-02 09:20:15,454 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 108 flow. Second operand 3 states and 98 transitions. [2024-02-02 09:20:15,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 168 flow [2024-02-02 09:20:15,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:15,456 INFO L231 Difference]: Finished difference. Result has 52 places, 49 transitions, 106 flow [2024-02-02 09:20:15,456 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} [2024-02-02 09:20:15,457 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -7 predicate places. [2024-02-02 09:20:15,458 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 106 flow [2024-02-02 09:20:15,458 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) [2024-02-02 09:20:15,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:15,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:20:15,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:20:15,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-02-02 09:20:15,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:15,459 INFO L85 PathProgramCache]: Analyzing trace with hash 347606803, now seen corresponding path program 1 times [2024-02-02 09:20:15,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:15,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002577175] [2024-02-02 09:20:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:15,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:15,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:15,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002577175] [2024-02-02 09:20:15,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002577175] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:15,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:15,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:15,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077277292] [2024-02-02 09:20:15,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:15,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:15,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:15,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:15,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:15,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2024-02-02 09:20:15,497 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) [2024-02-02 09:20:15,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:15,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2024-02-02 09:20:15,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:15,599 INFO L124 PetriNetUnfolderBase]: 197/431 cut-off events. [2024-02-02 09:20:15,599 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:20:15,602 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. [2024-02-02 09:20:15,604 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 27 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-02-02 09:20:15,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 48 transitions, 162 flow [2024-02-02 09:20:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:15,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-02-02 09:20:15,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2024-02-02 09:20:15,609 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 106 flow. Second operand 3 states and 102 transitions. [2024-02-02 09:20:15,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 48 transitions, 162 flow [2024-02-02 09:20:15,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 48 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:15,611 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 104 flow [2024-02-02 09:20:15,611 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} [2024-02-02 09:20:15,613 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -8 predicate places. [2024-02-02 09:20:15,613 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 104 flow [2024-02-02 09:20:15,613 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) [2024-02-02 09:20:15,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:15,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:20:15,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:20:15,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (and 41 more)] === [2024-02-02 09:20:15,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2109090596, now seen corresponding path program 1 times [2024-02-02 09:20:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985028243] [2024-02-02 09:20:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:20:15,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:20:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:20:15,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:20:15,668 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:20:15,669 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 44 remaining) [2024-02-02 09:20:15,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 44 remaining) [2024-02-02 09:20:15,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 44 remaining) [2024-02-02 09:20:15,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 44 remaining) [2024-02-02 09:20:15,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 44 remaining) [2024-02-02 09:20:15,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 44 remaining) [2024-02-02 09:20:15,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 44 remaining) [2024-02-02 09:20:15,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 44 remaining) [2024-02-02 09:20:15,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 44 remaining) [2024-02-02 09:20:15,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 44 remaining) [2024-02-02 09:20:15,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 44 remaining) [2024-02-02 09:20:15,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 44 remaining) [2024-02-02 09:20:15,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 44 remaining) [2024-02-02 09:20:15,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 44 remaining) [2024-02-02 09:20:15,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 44 remaining) [2024-02-02 09:20:15,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 44 remaining) [2024-02-02 09:20:15,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 44 remaining) [2024-02-02 09:20:15,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 44 remaining) [2024-02-02 09:20:15,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 44 remaining) [2024-02-02 09:20:15,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 44 remaining) [2024-02-02 09:20:15,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 44 remaining) [2024-02-02 09:20:15,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 44 remaining) [2024-02-02 09:20:15,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 44 remaining) [2024-02-02 09:20:15,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (20 of 44 remaining) [2024-02-02 09:20:15,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 44 remaining) [2024-02-02 09:20:15,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 44 remaining) [2024-02-02 09:20:15,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 44 remaining) [2024-02-02 09:20:15,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 44 remaining) [2024-02-02 09:20:15,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 44 remaining) [2024-02-02 09:20:15,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 44 remaining) [2024-02-02 09:20:15,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 44 remaining) [2024-02-02 09:20:15,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 44 remaining) [2024-02-02 09:20:15,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 44 remaining) [2024-02-02 09:20:15,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 44 remaining) [2024-02-02 09:20:15,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 44 remaining) [2024-02-02 09:20:15,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 44 remaining) [2024-02-02 09:20:15,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 44 remaining) [2024-02-02 09:20:15,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 44 remaining) [2024-02-02 09:20:15,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 44 remaining) [2024-02-02 09:20:15,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 44 remaining) [2024-02-02 09:20:15,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 44 remaining) [2024-02-02 09:20:15,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 44 remaining) [2024-02-02 09:20:15,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 44 remaining) [2024-02-02 09:20:15,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 44 remaining) [2024-02-02 09:20:15,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:20:15,696 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-02 09:20:15,703 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:20:15,703 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:20:15,726 INFO L503 ceAbstractionStarter]: Automizer considered 23 witness invariants [2024-02-02 09:20:15,727 INFO L504 ceAbstractionStarter]: WitnessConsidered=23 [2024-02-02 09:20:15,729 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:20:15 BasicIcfg [2024-02-02 09:20:15,729 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:20:15,729 INFO L158 Benchmark]: Toolchain (without parser) took 2714.57ms. Allocated memory is still 163.6MB. Free memory was 91.0MB in the beginning and 102.9MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:15,729 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:15,730 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:15,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.96ms. Allocated memory is still 163.6MB. Free memory was 91.0MB in the beginning and 75.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-02-02 09:20:15,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.94ms. Allocated memory is still 163.6MB. Free memory was 75.6MB in the beginning and 73.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:15,733 INFO L158 Benchmark]: Boogie Preprocessor took 135.42ms. Allocated memory is still 163.6MB. Free memory was 73.8MB in the beginning and 135.2MB in the end (delta: -61.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-02-02 09:20:15,733 INFO L158 Benchmark]: RCFGBuilder took 623.53ms. Allocated memory is still 163.6MB. Free memory was 135.2MB in the beginning and 93.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-02-02 09:20:15,733 INFO L158 Benchmark]: TraceAbstraction took 1532.09ms. Allocated memory is still 163.6MB. Free memory was 93.3MB in the beginning and 102.9MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:15,736 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.96ms. Allocated memory is still 163.6MB. Free memory was 91.0MB in the beginning and 75.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.94ms. Allocated memory is still 163.6MB. Free memory was 75.6MB in the beginning and 73.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 135.42ms. Allocated memory is still 163.6MB. Free memory was 73.8MB in the beginning and 135.2MB in the end (delta: -61.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 623.53ms. Allocated memory is still 163.6MB. Free memory was 135.2MB in the beginning and 93.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1532.09ms. Allocated memory is still 163.6MB. Free memory was 93.3MB in the beginning and 102.9MB in the end (delta: -9.6MB). 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, 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, 0.3s 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! [2024-02-02 09:20:15,758 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