./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-cb09d65-m [2024-01-27 23:09:10,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:09:10,274 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:09:10,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:09:10,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:09:10,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:09:10,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:09:10,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:09:10,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:09:10,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:09:10,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:09:10,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:09:10,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:09:10,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:09:10,312 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:09:10,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:09:10,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:09:10,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:09:10,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:09:10,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:09:10,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:09:10,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:09:10,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:09:10,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:09:10,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:09:10,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:09:10,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:09:10,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:09:10,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:09:10,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:09:10,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:09:10,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:09:10,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:09:10,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:09:10,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:09:10,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:09:10,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:09:10,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:09:10,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:09:10,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:09:10,317 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:09:10,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:09:10,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:09:10,318 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:09:10,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:09:10,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:09:10,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:09:10,526 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:09:10,526 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:09:10,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-27 23:09:11,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:09:11,778 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:09:11,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-27 23:09:11,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666f4d661/98ebbb43ebdf42d78471427883339cb4/FLAGc71ab5d17 [2024-01-27 23:09:11,795 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666f4d661/98ebbb43ebdf42d78471427883339cb4 [2024-01-27 23:09:11,797 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:09:11,798 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:09:11,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml [2024-01-27 23:09:11,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:09:11,922 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:09:11,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:09:11,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:09:11,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:09:11,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:09:11" (1/2) ... [2024-01-27 23:09:11,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a533d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:09:11, skipping insertion in model container [2024-01-27 23:09:11,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:09:11" (1/2) ... [2024-01-27 23:09:11,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e2d2dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:09:11, skipping insertion in model container [2024-01-27 23:09:11,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:09:11" (2/2) ... [2024-01-27 23:09:11,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a533d22 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:11, skipping insertion in model container [2024-01-27 23:09:11,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:09:11" (2/2) ... [2024-01-27 23:09:11,932 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:09:11,948 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:09:11,952 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,952 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] temp_2 == 0U [2024-01-27 23:09:11,952 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,952 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,952 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] temp_2 == 0U [2024-01-27 23:09:11,953 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,953 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,953 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,953 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,954 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,954 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,954 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) + (long long )x_1 >= 0LL [2024-01-27 23:09:11,954 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) - (long long )x_1 >= 0LL [2024-01-27 23:09:11,954 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_1 == 0U [2024-01-27 23:09:11,954 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] temp_2 == 0U [2024-01-27 23:09:11,954 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 + (long long )x_1 >= 0LL [2024-01-27 23:09:11,955 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 - (long long )x_1 >= 0LL [2024-01-27 23:09:11,955 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_0 == 0U [2024-01-27 23:09:11,955 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,955 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,955 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,956 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] temp_2 == 0U [2024-01-27 23:09:11,956 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] x_1 == 0U [2024-01-27 23:09:11,956 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-27 23:09:11,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:09:12,102 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-27 23:09:12,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:09:12,113 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 23:09:12,165 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-27 23:09:12,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:09:12,177 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:09:12,177 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12 WrapperNode [2024-01-27 23:09:12,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:09:12,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:09:12,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:09:12,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:09:12,183 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 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,189 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 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,206 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2024-01-27 23:09:12,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:09:12,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:09:12,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:09:12,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:09:12,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,217 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,229 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-27 23:09:12,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:09:12,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:09:12,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:09:12,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:09:12,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (1/1) ... [2024-01-27 23:09:12,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:09:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:09:12,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 23:09:12,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 23:09:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:09:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:09:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:09:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:09:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:09:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 23:09:12,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 23:09:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:09:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:09:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:09:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:09:12,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:09:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:09:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:09:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:09:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:09:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 23:09:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 23:09:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:09:12,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:09:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:09:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:09:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:09:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:09:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:09:12,305 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:09:12,387 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:09:12,389 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:09:12,561 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:09:12,562 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:09:12,652 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:09:12,652 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:09:12,653 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:09:12 BoogieIcfgContainer [2024-01-27 23:09:12,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:09:12,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:09:12,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:09:12,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:09:12,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:09:11" (1/4) ... [2024-01-27 23:09:12,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687feae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:09:12, skipping insertion in model container [2024-01-27 23:09:12,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:09:11" (2/4) ... [2024-01-27 23:09:12,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687feae8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:09:12, skipping insertion in model container [2024-01-27 23:09:12,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:09:12" (3/4) ... [2024-01-27 23:09:12,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687feae8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:09:12, skipping insertion in model container [2024-01-27 23:09:12,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:09:12" (4/4) ... [2024-01-27 23:09:12,661 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2024-01-27 23:09:12,675 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:09:12,675 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-01-27 23:09:12,675 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:09:12,729 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-27 23:09:12,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 66 transitions, 153 flow [2024-01-27 23:09:12,838 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-01-27 23:09:12,838 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 23:09:12,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 0/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-27 23:09:12,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 66 transitions, 153 flow [2024-01-27 23:09:12,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 62 transitions, 142 flow [2024-01-27 23:09:12,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:09:12,859 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;@606ed669, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:09:12,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-27 23:09:12,861 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:09:12,861 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:09:12,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:09:12,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:09:12,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:09:12,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:09:12,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:09:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash 9772, now seen corresponding path program 1 times [2024-01-27 23:09:12,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:09:12,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343501238] [2024-01-27 23:09:12,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:09:12,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:09:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:09:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:09:13,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:09:13,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343501238] [2024-01-27 23:09:13,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343501238] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:09:13,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:09:13,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:09:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041758091] [2024-01-27 23:09:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:09:13,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:09:13,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:09:13,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:09:13,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:09:13,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-01-27 23:09:13,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:13,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:09:13,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-01-27 23:09:13,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:09:13,289 INFO L124 PetriNetUnfolderBase]: 609/1156 cut-off events. [2024-01-27 23:09:13,289 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-01-27 23:09:13,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 1156 events. 609/1156 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7157 event pairs, 609 based on Foata normal form. 2/923 useless extension candidates. Maximal degree in co-relation 1850. Up to 965 conditions per place. [2024-01-27 23:09:13,300 INFO L140 encePairwiseOnDemand]: 59/66 looper letters, 26 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2024-01-27 23:09:13,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 57 transitions, 188 flow [2024-01-27 23:09:13,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:09:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:09:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-01-27 23:09:13,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-01-27 23:09:13,311 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 142 flow. Second operand 3 states and 129 transitions. [2024-01-27 23:09:13,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 57 transitions, 188 flow [2024-01-27 23:09:13,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 57 transitions, 176 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-27 23:09:13,317 INFO L231 Difference]: Finished difference. Result has 63 places, 57 transitions, 124 flow [2024-01-27 23:09:13,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=63, PETRI_TRANSITIONS=57} [2024-01-27 23:09:13,321 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -9 predicate places. [2024-01-27 23:09:13,322 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 57 transitions, 124 flow [2024-01-27 23:09:13,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:13,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:09:13,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:09:13,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:09:13,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:09:13,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:09:13,323 INFO L85 PathProgramCache]: Analyzing trace with hash 303258, now seen corresponding path program 1 times [2024-01-27 23:09:13,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:09:13,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069540028] [2024-01-27 23:09:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:09:13,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:09:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:09:13,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:09:13,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:09:13,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069540028] [2024-01-27 23:09:13,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069540028] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:09:13,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:09:13,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:09:13,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507307870] [2024-01-27 23:09:13,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:09:13,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:09:13,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:09:13,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:09:13,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:09:13,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-27 23:09:13,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 57 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:13,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:09:13,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-27 23:09:13,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:09:13,518 INFO L124 PetriNetUnfolderBase]: 609/1153 cut-off events. [2024-01-27 23:09:13,519 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-27 23:09:13,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2150 conditions, 1153 events. 609/1153 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7176 event pairs, 609 based on Foata normal form. 3/925 useless extension candidates. Maximal degree in co-relation 2134. Up to 966 conditions per place. [2024-01-27 23:09:13,525 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-27 23:09:13,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 176 flow [2024-01-27 23:09:13,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:09:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:09:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-01-27 23:09:13,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5858585858585859 [2024-01-27 23:09:13,531 INFO L175 Difference]: Start difference. First operand has 63 places, 57 transitions, 124 flow. Second operand 3 states and 116 transitions. [2024-01-27 23:09:13,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 176 flow [2024-01-27 23:09:13,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:09:13,532 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 118 flow [2024-01-27 23:09:13,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2024-01-27 23:09:13,534 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2024-01-27 23:09:13,534 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 118 flow [2024-01-27 23:09:13,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:13,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:09:13,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:09:13,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:09:13,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:09:13,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:09:13,537 INFO L85 PathProgramCache]: Analyzing trace with hash 291440652, now seen corresponding path program 1 times [2024-01-27 23:09:13,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:09:13,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953746523] [2024-01-27 23:09:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:09:13,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:09:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:09:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:09:13,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:09:13,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953746523] [2024-01-27 23:09:13,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953746523] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:09:13,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:09:13,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:09:13,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753016615] [2024-01-27 23:09:13,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:09:13,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:09:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:09:13,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:09:13,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:09:13,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-27 23:09:13,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:13,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:09:13,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-27 23:09:13,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:09:13,778 INFO L124 PetriNetUnfolderBase]: 609/1150 cut-off events. [2024-01-27 23:09:13,779 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-27 23:09:13,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2146 conditions, 1150 events. 609/1150 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7187 event pairs, 609 based on Foata normal form. 1/920 useless extension candidates. Maximal degree in co-relation 2131. Up to 963 conditions per place. [2024-01-27 23:09:13,786 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 26 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-01-27 23:09:13,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 168 flow [2024-01-27 23:09:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:09:13,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:09:13,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-01-27 23:09:13,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-01-27 23:09:13,791 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 118 flow. Second operand 3 states and 124 transitions. [2024-01-27 23:09:13,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 168 flow [2024-01-27 23:09:13,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:09:13,793 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 112 flow [2024-01-27 23:09:13,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-01-27 23:09:13,794 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2024-01-27 23:09:13,794 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 112 flow [2024-01-27 23:09:13,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:13,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:09:13,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:09:13,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:09:13,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:09:13,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:09:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1144083842, now seen corresponding path program 1 times [2024-01-27 23:09:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:09:13,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223949848] [2024-01-27 23:09:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:09:13,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:09:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:09:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:09:13,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:09:13,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223949848] [2024-01-27 23:09:13,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223949848] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:09:13,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:09:13,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:09:13,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406602862] [2024-01-27 23:09:13,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:09:13,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:09:13,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:09:13,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:09:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:09:13,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-27 23:09:13,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 112 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) [2024-01-27 23:09:13,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:09:13,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-27 23:09:13,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:09:13,974 INFO L124 PetriNetUnfolderBase]: 609/1149 cut-off events. [2024-01-27 23:09:13,974 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-27 23:09:13,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1149 events. 609/1149 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7155 event pairs, 609 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 2125. Up to 964 conditions per place. [2024-01-27 23:09:13,980 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 29 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-27 23:09:13,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 172 flow [2024-01-27 23:09:13,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:09:13,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:09:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-01-27 23:09:13,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5858585858585859 [2024-01-27 23:09:13,981 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 112 flow. Second operand 3 states and 116 transitions. [2024-01-27 23:09:13,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 172 flow [2024-01-27 23:09:13,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 50 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:09:13,983 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 110 flow [2024-01-27 23:09:13,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-01-27 23:09:13,984 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2024-01-27 23:09:13,984 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 110 flow [2024-01-27 23:09:13,984 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) [2024-01-27 23:09:13,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:09:13,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:09:13,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:09:13,985 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:09:13,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:09:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1962429827, now seen corresponding path program 1 times [2024-01-27 23:09:13,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:09:13,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802703965] [2024-01-27 23:09:13,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:09:13,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:09:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:09:14,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:09:14,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:09:14,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802703965] [2024-01-27 23:09:14,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802703965] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:09:14,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:09:14,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:09:14,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699566425] [2024-01-27 23:09:14,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:09:14,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:09:14,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:09:14,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:09:14,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:09:14,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-27 23:09:14,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:14,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:09:14,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-27 23:09:14,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:09:14,235 INFO L124 PetriNetUnfolderBase]: 609/1156 cut-off events. [2024-01-27 23:09:14,235 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-01-27 23:09:14,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2152 conditions, 1156 events. 609/1156 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6827 event pairs, 421 based on Foata normal form. 58/1067 useless extension candidates. Maximal degree in co-relation 2134. Up to 844 conditions per place. [2024-01-27 23:09:14,241 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 39 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-27 23:09:14,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 214 flow [2024-01-27 23:09:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:09:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:09:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2024-01-27 23:09:14,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-01-27 23:09:14,243 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 110 flow. Second operand 4 states and 168 transitions. [2024-01-27 23:09:14,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 214 flow [2024-01-27 23:09:14,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:09:14,246 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 104 flow [2024-01-27 23:09:14,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2024-01-27 23:09:14,248 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -18 predicate places. [2024-01-27 23:09:14,248 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 104 flow [2024-01-27 23:09:14,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:09:14,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:09:14,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:09:14,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:09:14,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 23:09:14,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:09:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 705782839, now seen corresponding path program 1 times [2024-01-27 23:09:14,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:09:14,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689479534] [2024-01-27 23:09:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:09:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:09:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:09:14,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:09:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:09:14,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:09:14,303 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:09:14,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-27 23:09:14,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 42 remaining) [2024-01-27 23:09:14,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-27 23:09:14,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-27 23:09:14,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-27 23:09:14,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-27 23:09:14,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-27 23:09:14,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-27 23:09:14,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-27 23:09:14,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-27 23:09:14,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-27 23:09:14,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-27 23:09:14,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 42 remaining) [2024-01-27 23:09:14,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-27 23:09:14,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-27 23:09:14,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-27 23:09:14,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-27 23:09:14,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-27 23:09:14,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-27 23:09:14,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-27 23:09:14,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-27 23:09:14,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-27 23:09:14,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-27 23:09:14,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-27 23:09:14,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-27 23:09:14,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (16 of 42 remaining) [2024-01-27 23:09:14,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 42 remaining) [2024-01-27 23:09:14,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 42 remaining) [2024-01-27 23:09:14,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 42 remaining) [2024-01-27 23:09:14,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-27 23:09:14,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-27 23:09:14,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-27 23:09:14,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 42 remaining) [2024-01-27 23:09:14,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-27 23:09:14,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-27 23:09:14,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-27 23:09:14,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-27 23:09:14,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-27 23:09:14,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-27 23:09:14,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-27 23:09:14,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-27 23:09:14,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-27 23:09:14,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:09:14,321 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-27 23:09:14,326 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:09:14,327 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:09:14,352 INFO L503 ceAbstractionStarter]: Automizer considered 24 witness invariants [2024-01-27 23:09:14,353 INFO L504 ceAbstractionStarter]: WitnessConsidered=24 [2024-01-27 23:09:14,354 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:09:14 BasicIcfg [2024-01-27 23:09:14,354 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:09:14,356 INFO L158 Benchmark]: Toolchain (without parser) took 2432.72ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 106.4MB in the beginning and 141.8MB in the end (delta: -35.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-01-27 23:09:14,356 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:09:14,356 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 134.2MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 114.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:09:14,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.98ms. Allocated memory is still 134.2MB. Free memory was 106.4MB in the beginning and 91.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-27 23:09:14,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.26ms. Allocated memory is still 134.2MB. Free memory was 91.1MB in the beginning and 89.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:09:14,357 INFO L158 Benchmark]: Boogie Preprocessor took 36.07ms. Allocated memory is still 134.2MB. Free memory was 89.2MB in the beginning and 87.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:09:14,357 INFO L158 Benchmark]: RCFGBuilder took 409.61ms. Allocated memory is still 134.2MB. Free memory was 87.1MB in the beginning and 56.1MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-01-27 23:09:14,358 INFO L158 Benchmark]: TraceAbstraction took 1699.45ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 55.2MB in the beginning and 141.8MB in the end (delta: -86.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:09:14,360 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 134.2MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 114.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.98ms. Allocated memory is still 134.2MB. Free memory was 106.4MB in the beginning and 91.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.26ms. Allocated memory is still 134.2MB. Free memory was 91.1MB in the beginning and 89.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.07ms. Allocated memory is still 134.2MB. Free memory was 89.2MB in the beginning and 87.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.61ms. Allocated memory is still 134.2MB. Free memory was 87.1MB in the beginning and 56.1MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1699.45ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 55.2MB in the beginning and 141.8MB in the end (delta: -86.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x_0, x_1, temp_2; [L64] 0 pthread_t t1, t2, t3; VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_0],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] [L67] 0 x_0 = __VERIFIER_nondet_uint() [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_1=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] [L68] 0 x_1 = __VERIFIER_nondet_uint() [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] [L69] 0 temp_2 = __VERIFIER_nondet_uint() [L72] CALL 0 assume_abort_if_not( x_0 == x_1 ) [L35] COND FALSE 0 !(!cond) [L72] RET 0 assume_abort_if_not( x_0 == x_1 ) [L74] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={6:0}, t2={5:0}, t3={3:0}, x_0=0, x_1=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, x_0=0, x_1=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 x_0++ [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, temp_2=1, x_0=1, x_1=0] - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 101 locations, 42 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 323 IncrementalHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 15 mSDtfsCounter, 323 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 23:09:14,399 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