./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 ab2e0ac4 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-ab2e0ac-m [2024-01-29 14:18:52,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:18:53,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:18:53,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:18:53,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:18:53,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:18:53,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:18:53,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:18:53,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:18:53,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:18:53,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:18:53,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:18:53,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:18:53,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:18:53,068 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:18:53,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:18:53,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:18:53,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:18:53,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:18:53,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:18:53,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:18:53,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:18:53,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:18:53,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:18:53,071 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:18:53,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:18:53,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:18:53,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:18:53,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:18:53,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:18:53,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:18:53,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:18:53,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:53,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:18:53,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:18:53,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:18:53,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:18:53,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:18:53,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:18:53,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:18:53,077 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:18:53,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:18:53,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:18:53,078 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:18:53,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:18:53,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:18:53,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:18:53,330 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:18:53,331 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:18:53,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml [2024-01-29 14:18:53,412 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:18:53,413 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:18:53,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-29 14:18:54,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:18:54,822 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:18:54,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-29 14:18:54,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f82825ae7/314a39f28e7f4ccd9eb5fddd3e95e387/FLAG9beef0acb [2024-01-29 14:18:55,224 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f82825ae7/314a39f28e7f4ccd9eb5fddd3e95e387 [2024-01-29 14:18:55,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:18:55,226 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:18:55,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:55,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:18:55,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:18:55,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:53" (1/2) ... [2024-01-29 14:18:55,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d00a701 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:55, skipping insertion in model container [2024-01-29 14:18:55,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:53" (1/2) ... [2024-01-29 14:18:55,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@625ff83d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:55, skipping insertion in model container [2024-01-29 14:18:55,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:55" (2/2) ... [2024-01-29 14:18:55,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d00a701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55, skipping insertion in model container [2024-01-29 14:18:55,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:55" (2/2) ... [2024-01-29 14:18:55,243 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:18:55,258 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:18:55,260 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,260 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] temp_2 == 0U [2024-01-29 14:18:55,260 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,260 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,260 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,260 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,261 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,261 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,261 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,261 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] temp_2 == 0U [2024-01-29 14:18:55,261 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] temp_2 == 0U [2024-01-29 14:18:55,261 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] x_1 == 0U [2024-01-29 14:18:55,262 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,262 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,262 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,262 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_1 == 0U [2024-01-29 14:18:55,262 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] temp_2 == 0U [2024-01-29 14:18:55,262 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 + (long long )x_1 >= 0LL [2024-01-29 14:18:55,263 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) + (long long )x_1 >= 0LL [2024-01-29 14:18:55,263 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) - (long long )x_1 >= 0LL [2024-01-29 14:18:55,263 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_0 == 0U [2024-01-29 14:18:55,263 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 - (long long )x_1 >= 0LL [2024-01-29 14:18:55,263 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,263 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 14:18:55,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:18:55,458 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-29 14:18:55,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:55,471 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:18:55,523 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-29 14:18:55,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:55,537 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:18:55,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55 WrapperNode [2024-01-29 14:18:55,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:55,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:55,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:18:55,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:18:55,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,572 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2024-01-29 14:18:55,573 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:55,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:18:55,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:18:55,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:18:55,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,599 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-29 14:18:55,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:18:55,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:18:55,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:18:55,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:18:55,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (1/1) ... [2024-01-29 14:18:55,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:55,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:18:55,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:18:55,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:18:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:18:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:18:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:18:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:18:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:18:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:18:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:18:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:18:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:18:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:18:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:18:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:18:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:18:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:18:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:18:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:18:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:18:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:18:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:18:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:18:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:18:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:18:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:18:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:18:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:18:55,686 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:18:55,771 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:18:55,773 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:18:56,048 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:18:56,049 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:18:56,190 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:18:56,193 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:18:56,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:56 BoogieIcfgContainer [2024-01-29 14:18:56,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:18:56,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:18:56,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:18:56,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:18:56,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:53" (1/4) ... [2024-01-29 14:18:56,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733aa2e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:56, skipping insertion in model container [2024-01-29 14:18:56,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:18:55" (2/4) ... [2024-01-29 14:18:56,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733aa2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:18:56, skipping insertion in model container [2024-01-29 14:18:56,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:55" (3/4) ... [2024-01-29 14:18:56,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733aa2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:18:56, skipping insertion in model container [2024-01-29 14:18:56,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:56" (4/4) ... [2024-01-29 14:18:56,226 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2024-01-29 14:18:56,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:18:56,243 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-01-29 14:18:56,243 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:18:56,307 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-29 14:18:56,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 66 transitions, 153 flow [2024-01-29 14:18:56,369 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-01-29 14:18:56,370 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:18:56,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 0/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-29 14:18:56,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 66 transitions, 153 flow [2024-01-29 14:18:56,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 62 transitions, 142 flow [2024-01-29 14:18:56,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:18:56,390 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;@6f770032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:18:56,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-29 14:18:56,393 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:18:56,394 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:18:56,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:18:56,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:56,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:18:56,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:18:56,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:56,400 INFO L85 PathProgramCache]: Analyzing trace with hash 9772, now seen corresponding path program 1 times [2024-01-29 14:18:56,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:56,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948288023] [2024-01-29 14:18:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:56,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:56,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:56,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948288023] [2024-01-29 14:18:56,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948288023] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:56,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:56,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:56,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83558810] [2024-01-29 14:18:56,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:56,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:56,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:56,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:56,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-29 14:18:56,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:56,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:56,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-29 14:18:56,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:57,035 INFO L124 PetriNetUnfolderBase]: 609/1153 cut-off events. [2024-01-29 14:18:57,036 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-01-29 14:18:57,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2207 conditions, 1153 events. 609/1153 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7154 event pairs, 609 based on Foata normal form. 5/927 useless extension candidates. Maximal degree in co-relation 1850. Up to 966 conditions per place. [2024-01-29 14:18:57,052 INFO L140 encePairwiseOnDemand]: 56/66 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-29 14:18:57,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 184 flow [2024-01-29 14:18:57,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:57,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-01-29 14:18:57,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-01-29 14:18:57,068 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 142 flow. Second operand 3 states and 121 transitions. [2024-01-29 14:18:57,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 184 flow [2024-01-29 14:18:57,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 172 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 14:18:57,082 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 118 flow [2024-01-29 14:18:57,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2024-01-29 14:18:57,088 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2024-01-29 14:18:57,088 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 118 flow [2024-01-29 14:18:57,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:57,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:57,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:57,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:18:57,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:18:57,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:57,090 INFO L85 PathProgramCache]: Analyzing trace with hash 901601770, now seen corresponding path program 1 times [2024-01-29 14:18:57,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:57,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389935848] [2024-01-29 14:18:57,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:57,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:57,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:57,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389935848] [2024-01-29 14:18:57,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389935848] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:57,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:57,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:57,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488232474] [2024-01-29 14:18:57,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:57,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:57,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:57,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:57,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:57,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-29 14:18:57,261 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) [2024-01-29 14:18:57,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:57,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-29 14:18:57,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:57,444 INFO L124 PetriNetUnfolderBase]: 609/1150 cut-off events. [2024-01-29 14:18:57,444 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-29 14:18:57,446 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. [2024-01-29 14:18:57,453 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 26 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-01-29 14:18:57,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 168 flow [2024-01-29 14:18:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:57,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-01-29 14:18:57,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-01-29 14:18:57,460 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 118 flow. Second operand 3 states and 124 transitions. [2024-01-29 14:18:57,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 168 flow [2024-01-29 14:18:57,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:57,462 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 112 flow [2024-01-29 14:18:57,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-01-29 14:18:57,463 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2024-01-29 14:18:57,463 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 112 flow [2024-01-29 14:18:57,463 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) [2024-01-29 14:18:57,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:57,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:57,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:18:57,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:18:57,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1144083842, now seen corresponding path program 1 times [2024-01-29 14:18:57,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:57,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187560572] [2024-01-29 14:18:57,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:57,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:57,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:57,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187560572] [2024-01-29 14:18:57,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187560572] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:57,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:57,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:18:57,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509867640] [2024-01-29 14:18:57,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:57,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:57,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:57,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:57,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:57,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 66 [2024-01-29 14:18:57,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:57,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:57,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 66 [2024-01-29 14:18:57,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:57,768 INFO L124 PetriNetUnfolderBase]: 609/1149 cut-off events. [2024-01-29 14:18:57,768 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-29 14:18:57,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2147 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 7157 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. [2024-01-29 14:18:57,776 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 28 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-29 14:18:57,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 170 flow [2024-01-29 14:18:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:57,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-01-29 14:18:57,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5959595959595959 [2024-01-29 14:18:57,781 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 112 flow. Second operand 3 states and 118 transitions. [2024-01-29 14:18:57,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 170 flow [2024-01-29 14:18:57,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 50 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:57,784 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 110 flow [2024-01-29 14:18:57,784 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} [2024-01-29 14:18:57,785 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2024-01-29 14:18:57,785 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 110 flow [2024-01-29 14:18:57,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:57,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:57,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:57,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:18:57,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:18:57,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:57,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1962429827, now seen corresponding path program 1 times [2024-01-29 14:18:57,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:57,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687407185] [2024-01-29 14:18:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:57,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:57,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:57,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687407185] [2024-01-29 14:18:57,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687407185] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:57,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:57,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:18:57,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681800662] [2024-01-29 14:18:57,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:57,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:18:57,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:18:57,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:18:58,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-29 14:18:58,000 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) [2024-01-29 14:18:58,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:58,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-29 14:18:58,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:58,151 INFO L124 PetriNetUnfolderBase]: 609/1068 cut-off events. [2024-01-29 14:18:58,151 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:18:58,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2064 conditions, 1068 events. 609/1068 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6236 event pairs, 59 based on Foata normal form. 58/979 useless extension candidates. Maximal degree in co-relation 2046. Up to 844 conditions per place. [2024-01-29 14:18:58,158 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 39 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-29 14:18:58,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 214 flow [2024-01-29 14:18:58,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:18:58,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:18:58,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2024-01-29 14:18:58,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-01-29 14:18:58,160 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 110 flow. Second operand 4 states and 168 transitions. [2024-01-29 14:18:58,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 214 flow [2024-01-29 14:18:58,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:58,162 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 104 flow [2024-01-29 14:18:58,162 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} [2024-01-29 14:18:58,163 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -18 predicate places. [2024-01-29 14:18:58,163 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 104 flow [2024-01-29 14:18:58,163 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) [2024-01-29 14:18:58,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:58,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:58,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:18:58,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:18:58,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:58,164 INFO L85 PathProgramCache]: Analyzing trace with hash 705782839, now seen corresponding path program 1 times [2024-01-29 14:18:58,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:58,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881339360] [2024-01-29 14:18:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:58,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:58,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:18:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:58,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:18:58,204 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:18:58,205 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-29 14:18:58,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 42 remaining) [2024-01-29 14:18:58,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-29 14:18:58,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-29 14:18:58,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-29 14:18:58,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-29 14:18:58,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-29 14:18:58,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-29 14:18:58,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-29 14:18:58,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-29 14:18:58,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-29 14:18:58,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-29 14:18:58,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 42 remaining) [2024-01-29 14:18:58,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-29 14:18:58,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-29 14:18:58,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-29 14:18:58,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-29 14:18:58,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-29 14:18:58,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-29 14:18:58,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-29 14:18:58,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-29 14:18:58,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-29 14:18:58,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-29 14:18:58,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-29 14:18:58,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-29 14:18:58,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (16 of 42 remaining) [2024-01-29 14:18:58,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 42 remaining) [2024-01-29 14:18:58,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 42 remaining) [2024-01-29 14:18:58,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 42 remaining) [2024-01-29 14:18:58,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-29 14:18:58,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-29 14:18:58,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-29 14:18:58,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 42 remaining) [2024-01-29 14:18:58,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-29 14:18:58,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-29 14:18:58,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-29 14:18:58,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-29 14:18:58,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-29 14:18:58,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-29 14:18:58,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-29 14:18:58,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-29 14:18:58,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-29 14:18:58,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:18:58,214 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-29 14:18:58,220 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:18:58,220 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:18:58,243 INFO L503 ceAbstractionStarter]: Automizer considered 24 witness invariants [2024-01-29 14:18:58,244 INFO L504 ceAbstractionStarter]: WitnessConsidered=24 [2024-01-29 14:18:58,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:18:58 BasicIcfg [2024-01-29 14:18:58,244 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:18:58,246 INFO L158 Benchmark]: Toolchain (without parser) took 3020.40ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 92.6MB in the beginning and 87.3MB in the end (delta: 5.3MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2024-01-29 14:18:58,246 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:58,247 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:58,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.56ms. Allocated memory is still 151.0MB. Free memory was 92.6MB in the beginning and 77.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-29 14:18:58,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.98ms. Allocated memory is still 151.0MB. Free memory was 77.0MB in the beginning and 75.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:58,251 INFO L158 Benchmark]: Boogie Preprocessor took 42.13ms. Allocated memory is still 151.0MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:18:58,251 INFO L158 Benchmark]: RCFGBuilder took 577.52ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 42.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-01-29 14:18:58,252 INFO L158 Benchmark]: TraceAbstraction took 2027.85ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 119.7MB in the beginning and 87.3MB in the end (delta: 32.4MB). Peak memory consumption was 116.3MB. Max. memory is 16.1GB. [2024-01-29 14:18:58,253 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.56ms. Allocated memory is still 151.0MB. Free memory was 92.6MB in the beginning and 77.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.98ms. Allocated memory is still 151.0MB. Free memory was 77.0MB in the beginning and 75.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.13ms. Allocated memory is still 151.0MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.52ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 42.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2027.85ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 119.7MB in the beginning and 87.3MB in the end (delta: 32.4MB). Peak memory consumption was 116.3MB. 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[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[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,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]]]] 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]]]] [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: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 20 mSDtfsCounter, 260 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-29 14:18:58,284 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