./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/mult-flipped-dist.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/mult-flipped-dist.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/mult-flipped-dist.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-flipped-dist.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 09:20:02,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:20:02,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:20:02,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:20:02,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:20:02,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:20:02,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:20:02,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:20:02,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:20:02,098 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:20:02,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:20:02,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:20:02,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:20:02,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:20:02,102 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:20:02,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:20:02,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:20:02,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:20:02,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:20:02,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:20:02,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:20:02,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:20:02,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:20:02,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:20:02,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:20:02,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:20:02,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:20:02,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:20:02,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:20:02,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:20:02,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:20:02,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:20:02,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:02,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:20:02,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:20:02,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:20:02,111 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:20:02,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:20:02,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:20:02,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:20:02,111 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:20:02,112 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:20:02,112 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:20:02,112 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:20:02,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:20:02,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:20:02,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:20:02,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:20:02,370 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:20:02,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2024-02-02 09:20:03,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:20:03,629 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:20:03,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2024-02-02 09:20:03,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17d37637b/3790b13efafd4d0fb9f364970c638802/FLAG9d131f148 [2024-02-02 09:20:03,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17d37637b/3790b13efafd4d0fb9f364970c638802 [2024-02-02 09:20:03,653 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:20:03,654 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:20:03,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-flipped-dist.wvr.yml/witness.yml [2024-02-02 09:20:03,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:20:03,763 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:20:03,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:03,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:20:03,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:20:03,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:03" (1/2) ... [2024-02-02 09:20:03,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7085f084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:03, skipping insertion in model container [2024-02-02 09:20:03,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:03" (1/2) ... [2024-02-02 09:20:03,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73f94a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:03, skipping insertion in model container [2024-02-02 09:20:03,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:03" (2/2) ... [2024-02-02 09:20:03,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7085f084 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:03, skipping insertion in model container [2024-02-02 09:20:03,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:03" (2/2) ... [2024-02-02 09:20:03,772 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:20:03,796 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:20:03,797 INFO L101 nessWitnessExtractor]: Loop invariant at [L50-L52] ((unsigned long )_argptr == 0UL) && (((((((((((((0U == i && i == 0U) || 12U <= i) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) [2024-02-02 09:20:03,797 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] ((((((((((0LL - (long long )a) + (long long )c >= 0LL) && ((long long )a + (long long )c >= 0LL)) && ((0LL - (long long )a) - (long long )c >= 0LL)) && ((long long )a - (long long )c >= 0LL)) && (x_1 == 0U)) && (x_2 == 0U)) && (x_3 == 0U)) && (a == 0U)) && (b == 0U)) && (c == 0U) [2024-02-02 09:20:03,797 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] ((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U) [2024-02-02 09:20:03,798 INFO L101 nessWitnessExtractor]: Location invariant before [L59-L59] ((unsigned long )_argptr == 0UL) && ((((((((((((i == 2U || i == 1U) || (0U == i && i == 0U)) || (12U <= i && i <= 4294967294U)) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) [2024-02-02 09:20:03,798 INFO L101 nessWitnessExtractor]: Loop invariant at [L42-L44] ((unsigned long )_argptr == 0UL) && ((((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-02-02 09:20:03,798 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-02 09:20:03,799 INFO L101 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-02-02 09:20:03,799 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (((((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U)) && (c == 0U)) && ((unsigned long )_argptr == 0UL)) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-02-02 09:20:03,799 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U)) && (c == 0U) [2024-02-02 09:20:03,799 INFO L101 nessWitnessExtractor]: Loop invariant at [L58-L60] ((unsigned long )_argptr == 0UL) && ((((((((((((i == 3U || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 12U <= i) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) [2024-02-02 09:20:03,799 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-02-02 09:20:03,799 INFO L101 nessWitnessExtractor]: Location invariant before [L51-L51] ((unsigned long )_argptr == 0UL) && (((((((((((((0U == i && i == 0U) || (12U <= i && i <= 4294967294U)) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) [2024-02-02 09:20:03,800 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] ((((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U)) && (b == 0U)) && (c == 0U) [2024-02-02 09:20:03,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:20:03,962 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/mult-flipped-dist.wvr.c[2174,2187] [2024-02-02 09:20:03,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:03,973 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:20:04,053 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/mult-flipped-dist.wvr.c[2174,2187] [2024-02-02 09:20:04,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:04,065 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:20:04,065 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:04 WrapperNode [2024-02-02 09:20:04,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:04,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:04,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:20:04,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:20:04,072 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,079 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,096 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-02-02 09:20:04,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:04,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:20:04,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:20:04,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:20:04,105 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,105 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,107 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,127 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-02-02 09:20:04,127 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,128 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,134 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,138 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,139 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,140 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:20:04,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:20:04,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:20:04,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:20:04,149 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 09:20:04" (1/1) ... [2024-02-02 09:20:04,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:04,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:20:04,198 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 09:20:04,217 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 09:20:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:20:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:20:04,233 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:20:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:20:04,234 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:20:04,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:20:04,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:20:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:20:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:20:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:20:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:20:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:20:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:20:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:20:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:20:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:20:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:20:04,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:20:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:20:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:20:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:20:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:20:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:20:04,241 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 09:20:04,336 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:20:04,338 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:20:04,668 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:20:04,668 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:20:04,780 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:20:04,780 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-02-02 09:20:04,780 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:04 BoogieIcfgContainer [2024-02-02 09:20:04,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:20:04,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:20:04,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:20:04,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:20:04,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:20:03" (1/4) ... [2024-02-02 09:20:04,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241e4d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:20:04, skipping insertion in model container [2024-02-02 09:20:04,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:03" (2/4) ... [2024-02-02 09:20:04,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241e4d31 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:20:04, skipping insertion in model container [2024-02-02 09:20:04,786 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 09:20:04" (3/4) ... [2024-02-02 09:20:04,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241e4d31 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:20:04, skipping insertion in model container [2024-02-02 09:20:04,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:04" (4/4) ... [2024-02-02 09:20:04,788 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.c [2024-02-02 09:20:04,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:20:04,803 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-02-02 09:20:04,803 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:20:04,890 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-02 09:20:04,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 59 transitions, 139 flow [2024-02-02 09:20:04,978 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-02-02 09:20:04,979 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-02 09:20:04,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 56 events. 3/56 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 131 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-02-02 09:20:04,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 59 transitions, 139 flow [2024-02-02 09:20:04,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 55 transitions, 128 flow [2024-02-02 09:20:04,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:20:05,003 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;@747a00e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:20:05,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-02-02 09:20:05,005 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:20:05,006 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:20:05,006 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:20:05,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:05,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:20:05,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-02-02 09:20:05,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash 10056, now seen corresponding path program 1 times [2024-02-02 09:20:05,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:05,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329202781] [2024-02-02 09:20:05,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:05,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:05,720 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 09:20:05,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329202781] [2024-02-02 09:20:05,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329202781] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:05,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:05,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:05,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728735995] [2024-02-02 09:20:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:05,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:05,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:05,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:05,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:05,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-02-02 09:20:05,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 09:20:05,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:05,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-02-02 09:20:05,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:06,245 INFO L124 PetriNetUnfolderBase]: 1587/2664 cut-off events. [2024-02-02 09:20:06,246 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2024-02-02 09:20:06,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4937 conditions, 2664 events. 1587/2664 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 15619 event pairs, 1125 based on Foata normal form. 0/1974 useless extension candidates. Maximal degree in co-relation 4364. Up to 2139 conditions per place. [2024-02-02 09:20:06,271 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 33 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-02-02 09:20:06,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 196 flow [2024-02-02 09:20:06,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-02-02 09:20:06,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576271186440678 [2024-02-02 09:20:06,287 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 128 flow. Second operand 3 states and 102 transitions. [2024-02-02 09:20:06,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 196 flow [2024-02-02 09:20:06,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 184 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-02-02 09:20:06,299 INFO L231 Difference]: Finished difference. Result has 57 places, 54 transitions, 118 flow [2024-02-02 09:20:06,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2024-02-02 09:20:06,305 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -5 predicate places. [2024-02-02 09:20:06,306 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 118 flow [2024-02-02 09:20:06,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 09:20:06,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:06,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:20:06,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:20:06,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-02-02 09:20:06,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash 312079, now seen corresponding path program 1 times [2024-02-02 09:20:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:06,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140971950] [2024-02-02 09:20:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:06,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:06,398 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 09:20:06,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:06,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140971950] [2024-02-02 09:20:06,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140971950] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:06,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:06,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:20:06,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914458070] [2024-02-02 09:20:06,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:06,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:06,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:06,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:06,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:06,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 59 [2024-02-02 09:20:06,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 09:20:06,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:06,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 59 [2024-02-02 09:20:06,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:06,748 INFO L124 PetriNetUnfolderBase]: 1587/2663 cut-off events. [2024-02-02 09:20:06,748 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-02-02 09:20:06,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4849 conditions, 2663 events. 1587/2663 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 15589 event pairs, 1125 based on Foata normal form. 0/1974 useless extension candidates. Maximal degree in co-relation 4840. Up to 2137 conditions per place. [2024-02-02 09:20:06,771 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 32 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2024-02-02 09:20:06,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 184 flow [2024-02-02 09:20:06,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:06,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-02-02 09:20:06,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5875706214689266 [2024-02-02 09:20:06,775 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 118 flow. Second operand 3 states and 104 transitions. [2024-02-02 09:20:06,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 184 flow [2024-02-02 09:20:06,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:06,778 INFO L231 Difference]: Finished difference. Result has 56 places, 53 transitions, 116 flow [2024-02-02 09:20:06,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=56, PETRI_TRANSITIONS=53} [2024-02-02 09:20:06,779 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-02-02 09:20:06,779 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 53 transitions, 116 flow [2024-02-02 09:20:06,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 09:20:06,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:06,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:20:06,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:20:06,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-02-02 09:20:06,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:06,782 INFO L85 PathProgramCache]: Analyzing trace with hash 9674745, now seen corresponding path program 1 times [2024-02-02 09:20:06,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:06,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344272050] [2024-02-02 09:20:06,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:06,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:06,836 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 09:20:06,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344272050] [2024-02-02 09:20:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344272050] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:06,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:06,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:20:06,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848017196] [2024-02-02 09:20:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:06,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:06,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:06,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:06,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-02-02 09:20:06,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 09:20:06,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:06,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-02-02 09:20:06,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:07,116 INFO L124 PetriNetUnfolderBase]: 1587/2662 cut-off events. [2024-02-02 09:20:07,117 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-02-02 09:20:07,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4847 conditions, 2662 events. 1587/2662 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 15626 event pairs, 1125 based on Foata normal form. 0/1974 useless extension candidates. Maximal degree in co-relation 4836. Up to 2135 conditions per place. [2024-02-02 09:20:07,138 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 31 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2024-02-02 09:20:07,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 180 flow [2024-02-02 09:20:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:07,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-02-02 09:20:07,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5988700564971752 [2024-02-02 09:20:07,145 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 116 flow. Second operand 3 states and 106 transitions. [2024-02-02 09:20:07,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 180 flow [2024-02-02 09:20:07,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:07,147 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 114 flow [2024-02-02 09:20:07,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2024-02-02 09:20:07,149 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -7 predicate places. [2024-02-02 09:20:07,149 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 114 flow [2024-02-02 09:20:07,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 09:20:07,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:07,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:20:07,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:20:07,150 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-02-02 09:20:07,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:07,150 INFO L85 PathProgramCache]: Analyzing trace with hash 299917411, now seen corresponding path program 1 times [2024-02-02 09:20:07,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:07,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128594008] [2024-02-02 09:20:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:07,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:07,205 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 09:20:07,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:07,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128594008] [2024-02-02 09:20:07,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128594008] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:07,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:07,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:20:07,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590276737] [2024-02-02 09:20:07,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:07,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:07,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:07,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:07,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:07,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 59 [2024-02-02 09:20:07,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 09:20:07,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:07,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 59 [2024-02-02 09:20:07,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:07,515 INFO L124 PetriNetUnfolderBase]: 1410/2847 cut-off events. [2024-02-02 09:20:07,516 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-02-02 09:20:07,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4865 conditions, 2847 events. 1410/2847 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 20216 event pairs, 335 based on Foata normal form. 1/2624 useless extension candidates. Maximal degree in co-relation 4852. Up to 1422 conditions per place. [2024-02-02 09:20:07,533 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 46 selfloop transitions, 4 changer transitions 1/73 dead transitions. [2024-02-02 09:20:07,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 73 transitions, 263 flow [2024-02-02 09:20:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-02-02 09:20:07,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7740112994350282 [2024-02-02 09:20:07,535 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 114 flow. Second operand 3 states and 137 transitions. [2024-02-02 09:20:07,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 73 transitions, 263 flow [2024-02-02 09:20:07,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 259 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:07,536 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 134 flow [2024-02-02 09:20:07,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2024-02-02 09:20:07,537 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -7 predicate places. [2024-02-02 09:20:07,537 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 134 flow [2024-02-02 09:20:07,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 09:20:07,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:07,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:07,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:20:07,538 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-02-02 09:20:07,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:07,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1307994526, now seen corresponding path program 1 times [2024-02-02 09:20:07,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:07,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117509357] [2024-02-02 09:20:07,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:07,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:07,670 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 09:20:07,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117509357] [2024-02-02 09:20:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117509357] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:07,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:20:07,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208961877] [2024-02-02 09:20:07,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:07,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:20:07,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:07,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:20:07,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:20:07,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 59 [2024-02-02 09:20:07,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 09:20:07,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:07,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 59 [2024-02-02 09:20:07,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:07,874 INFO L124 PetriNetUnfolderBase]: 1338/2401 cut-off events. [2024-02-02 09:20:07,874 INFO L125 PetriNetUnfolderBase]: For 379/379 co-relation queries the response was YES. [2024-02-02 09:20:07,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4882 conditions, 2401 events. 1338/2401 cut-off events. For 379/379 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 15228 event pairs, 102 based on Foata normal form. 152/2486 useless extension candidates. Maximal degree in co-relation 1279. Up to 1643 conditions per place. [2024-02-02 09:20:07,895 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 45 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-02-02 09:20:07,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 66 transitions, 264 flow [2024-02-02 09:20:07,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:20:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:20:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-02-02 09:20:07,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6313559322033898 [2024-02-02 09:20:07,897 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 134 flow. Second operand 4 states and 149 transitions. [2024-02-02 09:20:07,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 66 transitions, 264 flow [2024-02-02 09:20:07,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 66 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:20:07,899 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 128 flow [2024-02-02 09:20:07,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=51, 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=4, PETRI_FLOW=128, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-02-02 09:20:07,901 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2024-02-02 09:20:07,901 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 128 flow [2024-02-02 09:20:07,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 09:20:07,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:07,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:07,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:20:07,902 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-02-02 09:20:07,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:07,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1443470244, now seen corresponding path program 1 times [2024-02-02 09:20:07,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:07,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999291464] [2024-02-02 09:20:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:07,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:08,070 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 09:20:08,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:08,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999291464] [2024-02-02 09:20:08,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999291464] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:08,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:08,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:20:08,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610947017] [2024-02-02 09:20:08,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:08,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:20:08,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:08,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:20:08,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:20:08,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 59 [2024-02-02 09:20:08,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 09:20:08,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:08,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 59 [2024-02-02 09:20:08,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:08,265 INFO L124 PetriNetUnfolderBase]: 1298/2385 cut-off events. [2024-02-02 09:20:08,265 INFO L125 PetriNetUnfolderBase]: For 480/480 co-relation queries the response was YES. [2024-02-02 09:20:08,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4735 conditions, 2385 events. 1298/2385 cut-off events. For 480/480 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 15279 event pairs, 65 based on Foata normal form. 176/2509 useless extension candidates. Maximal degree in co-relation 3854. Up to 1523 conditions per place. [2024-02-02 09:20:08,277 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 50 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-02-02 09:20:08,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 284 flow [2024-02-02 09:20:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:20:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:20:08,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 153 transitions. [2024-02-02 09:20:08,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6483050847457628 [2024-02-02 09:20:08,279 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 128 flow. Second operand 4 states and 153 transitions. [2024-02-02 09:20:08,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 284 flow [2024-02-02 09:20:08,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 279 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:08,281 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 123 flow [2024-02-02 09:20:08,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=119, 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=4, PETRI_FLOW=123, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2024-02-02 09:20:08,284 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -10 predicate places. [2024-02-02 09:20:08,284 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 123 flow [2024-02-02 09:20:08,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 09:20:08,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:08,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:08,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:20:08,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-02-02 09:20:08,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:08,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1442667103, now seen corresponding path program 1 times [2024-02-02 09:20:08,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:08,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300824476] [2024-02-02 09:20:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:20:08,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:20:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:20:08,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:20:08,336 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:20:08,337 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 32 remaining) [2024-02-02 09:20:08,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 32 remaining) [2024-02-02 09:20:08,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 32 remaining) [2024-02-02 09:20:08,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 32 remaining) [2024-02-02 09:20:08,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 32 remaining) [2024-02-02 09:20:08,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 32 remaining) [2024-02-02 09:20:08,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 32 remaining) [2024-02-02 09:20:08,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 32 remaining) [2024-02-02 09:20:08,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 32 remaining) [2024-02-02 09:20:08,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 32 remaining) [2024-02-02 09:20:08,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 32 remaining) [2024-02-02 09:20:08,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 32 remaining) [2024-02-02 09:20:08,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 32 remaining) [2024-02-02 09:20:08,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 32 remaining) [2024-02-02 09:20:08,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 32 remaining) [2024-02-02 09:20:08,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 32 remaining) [2024-02-02 09:20:08,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 32 remaining) [2024-02-02 09:20:08,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (14 of 32 remaining) [2024-02-02 09:20:08,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 32 remaining) [2024-02-02 09:20:08,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 32 remaining) [2024-02-02 09:20:08,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 32 remaining) [2024-02-02 09:20:08,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 32 remaining) [2024-02-02 09:20:08,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 32 remaining) [2024-02-02 09:20:08,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 32 remaining) [2024-02-02 09:20:08,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 32 remaining) [2024-02-02 09:20:08,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 32 remaining) [2024-02-02 09:20:08,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 32 remaining) [2024-02-02 09:20:08,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 32 remaining) [2024-02-02 09:20:08,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 32 remaining) [2024-02-02 09:20:08,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 32 remaining) [2024-02-02 09:20:08,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 32 remaining) [2024-02-02 09:20:08,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 32 remaining) [2024-02-02 09:20:08,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:20:08,348 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:08,352 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:20:08,352 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:20:08,373 INFO L503 ceAbstractionStarter]: Automizer considered 16 witness invariants [2024-02-02 09:20:08,373 INFO L504 ceAbstractionStarter]: WitnessConsidered=16 [2024-02-02 09:20:08,374 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:20:08 BasicIcfg [2024-02-02 09:20:08,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:20:08,374 INFO L158 Benchmark]: Toolchain (without parser) took 4610.85ms. Allocated memory was 174.1MB in the beginning and 356.5MB in the end (delta: 182.5MB). Free memory was 145.2MB in the beginning and 190.1MB in the end (delta: -45.0MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. [2024-02-02 09:20:08,374 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:08,374 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:08,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.96ms. Allocated memory is still 174.1MB. Free memory was 145.0MB in the beginning and 132.9MB in the end (delta: 12.1MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-02-02 09:20:08,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.46ms. Allocated memory is still 174.1MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:20:08,375 INFO L158 Benchmark]: Boogie Preprocessor took 50.00ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:20:08,375 INFO L158 Benchmark]: RCFGBuilder took 633.05ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 85.7MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-02-02 09:20:08,376 INFO L158 Benchmark]: TraceAbstraction took 3591.55ms. Allocated memory was 174.1MB in the beginning and 356.5MB in the end (delta: 182.5MB). Free memory was 84.6MB in the beginning and 190.1MB in the end (delta: -105.5MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2024-02-02 09:20:08,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.96ms. Allocated memory is still 174.1MB. Free memory was 145.0MB in the beginning and 132.9MB in the end (delta: 12.1MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.46ms. Allocated memory is still 174.1MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.00ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.05ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 85.7MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3591.55ms. Allocated memory was 174.1MB in the beginning and 356.5MB in the end (delta: 182.5MB). Free memory was 84.6MB in the beginning and 190.1MB in the end (delta: -105.5MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x_1, x_2, x_3, a, b, c; [L66] 0 pthread_t t1, t2, t3; VAL [a=0, b=0, c=0, t1={6:0}, t2={3:0}, t3={5:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,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[a]]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[a],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L69] 0 a = __VERIFIER_nondet_uint() [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L70] 0 b = __VERIFIER_nondet_uint() [L71] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L71] 0 c = __VERIFIER_nondet_uint() [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]]]] [L73] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={6:0}, t2={3:0}, t3={5:0}, x_1=0, x_2=0, x_3=0] [L42] 1 unsigned int i=0; VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0, x_3=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPLEQ,IntegerLiteral[12U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[11U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[10U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[9U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[8U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[7U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[6U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[5U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[4U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[3U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[2U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[1U]]],BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IntegerLiteral[0U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[0U]]]]]]] VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0, x_3=0] [L42] COND TRUE 1 i