./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/sync01.i --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/sync01.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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/pthread/sync01.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/sync01.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-8857f20-m [2024-01-29 22:49:51,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:49:51,666 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:49:51,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:49:51,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:49:51,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:49:51,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:49:51,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:49:51,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:49:51,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:49:51,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:49:51,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:49:51,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:49:51,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:49:51,688 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:49:51,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:49:51,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:49:51,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:49:51,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:49:51,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:49:51,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:49:51,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:49:51,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:49:51,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:49:51,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:49:51,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:49:51,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:49:51,692 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:49:51,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:49:51,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:49:51,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:49:51,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:49:51,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:49:51,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:49:51,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:49:51,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:49:51,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:49:51,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:49:51,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:49:51,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:49:51,697 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:49:51,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:49:51,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:49:51,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:49:51,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:49:51,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:49:51,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:49:51,903 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:49:51,904 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:49:51,904 INFO L431 ainManager$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/sync01.yml/witness.yml [2024-01-29 22:49:52,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:49:52,041 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:49:52,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2024-01-29 22:49:53,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:49:53,470 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:49:53,476 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2024-01-29 22:49:53,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fa37a36/bf6d1a27c8174aea921a2037029db401/FLAGe765845e4 [2024-01-29 22:49:53,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fa37a36/bf6d1a27c8174aea921a2037029db401 [2024-01-29 22:49:53,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:49:53,539 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:49:53,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:49:53,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:49:53,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:49:53,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:49:52" (1/2) ... [2024-01-29 22:49:53,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7f1d3e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:53, skipping insertion in model container [2024-01-29 22:49:53,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:49:52" (1/2) ... [2024-01-29 22:49:53,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39446206 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:53, skipping insertion in model container [2024-01-29 22:49:53,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:49:53" (2/2) ... [2024-01-29 22:49:53,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7f1d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:53, skipping insertion in model container [2024-01-29 22:49:53,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:49:53" (2/2) ... [2024-01-29 22:49:53,558 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:49:53,618 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:49:53,619 INFO L98 nessWitnessExtractor]: Location invariant after [L946-L947] (num == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,619 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] (0 <= num) && (num <= 1) [2024-01-29 22:49:53,619 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] 0 <= num [2024-01-29 22:49:53,619 INFO L98 nessWitnessExtractor]: Location invariant after [L946-L947] num == 0 [2024-01-29 22:49:53,619 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] ((0 <= num) && (num <= 1)) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,619 INFO L98 nessWitnessExtractor]: Location invariant before [L940-L940] (unsigned long )arg == 0UL [2024-01-29 22:49:53,620 INFO L98 nessWitnessExtractor]: Location invariant before [L956-L956] num == 0 [2024-01-29 22:49:53,620 INFO L98 nessWitnessExtractor]: Location invariant before [L939-L939] num == 1 [2024-01-29 22:49:53,620 INFO L98 nessWitnessExtractor]: Location invariant before [L939-L939] (num == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,620 INFO L98 nessWitnessExtractor]: Location invariant before [L960-L960] num == 1 [2024-01-29 22:49:53,620 INFO L98 nessWitnessExtractor]: Location invariant before [L948-L948] (num == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,620 INFO L98 nessWitnessExtractor]: Location invariant before [L948-L948] num == 1 [2024-01-29 22:49:53,620 INFO L98 nessWitnessExtractor]: Location invariant before [L957-L957] num == 1 [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant before [L938-L938] num == 0 [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant before [L938-L938] (num == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant before [L949-L949] (num == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant before [L949-L949] num == 0 [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant before [L941-L941] (unsigned long )arg == 0UL [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant before [L959-L959] num == 1 [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant before [L958-L958] num == 1 [2024-01-29 22:49:53,621 INFO L98 nessWitnessExtractor]: Location invariant after [L936-L937] (num == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,622 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] 0 <= num [2024-01-29 22:49:53,622 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] (0 <= num) && (num <= 1) [2024-01-29 22:49:53,622 INFO L98 nessWitnessExtractor]: Location invariant after [L936-L937] num == 1 [2024-01-29 22:49:53,622 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] (0 <= num) && ((unsigned long )arg == 0UL) [2024-01-29 22:49:53,622 INFO L98 nessWitnessExtractor]: Location invariant before [L945-L945] (unsigned long )arg == 0UL [2024-01-29 22:49:53,622 INFO L98 nessWitnessExtractor]: Location invariant before [L935-L935] (unsigned long )arg == 0UL [2024-01-29 22:49:53,622 INFO L98 nessWitnessExtractor]: Location invariant before [L951-L951] (unsigned long )arg == 0UL [2024-01-29 22:49:53,623 INFO L98 nessWitnessExtractor]: Location invariant before [L950-L950] (unsigned long )arg == 0UL [2024-01-29 22:49:53,654 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:49:54,083 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2024-01-29 22:49:54,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:49:54,098 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:49:54,182 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2024-01-29 22:49:54,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:49:54,228 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:49:54,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54 WrapperNode [2024-01-29 22:49:54,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:49:54,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:49:54,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:49:54,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:49:54,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,276 INFO L138 Inliner]: procedures = 269, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2024-01-29 22:49:54,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:49:54,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:49:54,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:49:54,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:49:54,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,303 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 5, 8, 8, 2, 2]. 30 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 8, 8, 0, 0]. The 2 writes are split as follows [0, 0, 0, 0, 1, 1]. [2024-01-29 22:49:54,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:49:54,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:49:54,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:49:54,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:49:54,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (1/1) ... [2024-01-29 22:49:54,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:49:54,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:49:54,377 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 22:49:54,385 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 22:49:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:49:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 22:49:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:49:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:49:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:49:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:49:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:49:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:49:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:49:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:49:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:49:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:49:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 22:49:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:49:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:49:54,414 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 22:49:54,516 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:49:54,518 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:49:54,733 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:49:54,734 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:49:54,844 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:49:54,844 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-29 22:49:54,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:49:54 BoogieIcfgContainer [2024-01-29 22:49:54,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:49:54,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:49:54,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:49:54,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:49:54,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:49:52" (1/4) ... [2024-01-29 22:49:54,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4c33d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:49:54, skipping insertion in model container [2024-01-29 22:49:54,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:49:53" (2/4) ... [2024-01-29 22:49:54,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4c33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:49:54, skipping insertion in model container [2024-01-29 22:49:54,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:54" (3/4) ... [2024-01-29 22:49:54,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4c33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:49:54, skipping insertion in model container [2024-01-29 22:49:54,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:49:54" (4/4) ... [2024-01-29 22:49:54,854 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2024-01-29 22:49:54,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:49:54,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-01-29 22:49:54,868 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:49:54,952 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 22:49:54,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 222 flow [2024-01-29 22:49:55,021 INFO L124 PetriNetUnfolderBase]: 3/102 cut-off events. [2024-01-29 22:49:55,022 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:49:55,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 102 events. 3/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 251 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2024-01-29 22:49:55,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 104 transitions, 222 flow [2024-01-29 22:49:55,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 99 transitions, 210 flow [2024-01-29 22:49:55,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:49:55,051 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;@16566b42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:49:55,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2024-01-29 22:49:55,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:49:55,054 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:49:55,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:49:55,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:55,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:49:55,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 22:49:55,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:55,062 INFO L85 PathProgramCache]: Analyzing trace with hash 11186, now seen corresponding path program 1 times [2024-01-29 22:49:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:55,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68271053] [2024-01-29 22:49:55,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:55,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:55,477 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 22:49:55,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:55,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68271053] [2024-01-29 22:49:55,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68271053] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:55,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:55,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:49:55,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369568406] [2024-01-29 22:49:55,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:55,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:49:55,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:55,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:49:55,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:49:55,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 104 [2024-01-29 22:49:55,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 22:49:55,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:55,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 104 [2024-01-29 22:49:55,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:55,869 INFO L124 PetriNetUnfolderBase]: 702/1820 cut-off events. [2024-01-29 22:49:55,870 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-01-29 22:49:55,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3179 conditions, 1820 events. 702/1820 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12953 event pairs, 341 based on Foata normal form. 218/1795 useless extension candidates. Maximal degree in co-relation 2911. Up to 723 conditions per place. [2024-01-29 22:49:55,882 INFO L140 encePairwiseOnDemand]: 77/104 looper letters, 58 selfloop transitions, 8 changer transitions 0/114 dead transitions. [2024-01-29 22:49:55,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 114 transitions, 378 flow [2024-01-29 22:49:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:49:55,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:49:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2024-01-29 22:49:55,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7532051282051282 [2024-01-29 22:49:55,894 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 3 states and 235 transitions. [2024-01-29 22:49:55,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 114 transitions, 378 flow [2024-01-29 22:49:55,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 114 transitions, 366 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:49:55,901 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 276 flow [2024-01-29 22:49:55,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2024-01-29 22:49:55,905 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -3 predicate places. [2024-01-29 22:49:55,905 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 276 flow [2024-01-29 22:49:55,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 22:49:55,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:55,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 22:49:55,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:49:55,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 22:49:55,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash 347136, now seen corresponding path program 1 times [2024-01-29 22:49:55,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:55,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568990720] [2024-01-29 22:49:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:55,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:55,957 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 22:49:55,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:55,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568990720] [2024-01-29 22:49:55,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568990720] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:55,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:55,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:49:55,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747190778] [2024-01-29 22:49:55,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:55,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:49:55,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:55,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:49:55,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:49:56,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-01-29 22:49:56,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 22:49:56,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:56,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-01-29 22:49:56,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:56,170 INFO L124 PetriNetUnfolderBase]: 41/154 cut-off events. [2024-01-29 22:49:56,171 INFO L125 PetriNetUnfolderBase]: For 115/117 co-relation queries the response was YES. [2024-01-29 22:49:56,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 154 events. 41/154 cut-off events. For 115/117 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 586 event pairs, 31 based on Foata normal form. 68/189 useless extension candidates. Maximal degree in co-relation 253. Up to 76 conditions per place. [2024-01-29 22:49:56,172 INFO L140 encePairwiseOnDemand]: 90/104 looper letters, 14 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2024-01-29 22:49:56,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 118 flow [2024-01-29 22:49:56,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:49:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:49:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-01-29 22:49:56,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-01-29 22:49:56,178 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 276 flow. Second operand 3 states and 169 transitions. [2024-01-29 22:49:56,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 118 flow [2024-01-29 22:49:56,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:49:56,181 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 84 flow [2024-01-29 22:49:56,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2024-01-29 22:49:56,181 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -62 predicate places. [2024-01-29 22:49:56,182 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 84 flow [2024-01-29 22:49:56,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 22:49:56,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:56,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:56,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:49:56,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 22:49:56,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:56,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1552937278, now seen corresponding path program 1 times [2024-01-29 22:49:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:56,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245331288] [2024-01-29 22:49:56,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:56,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:56,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:49:56,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:56,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245331288] [2024-01-29 22:49:56,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245331288] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:56,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:56,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:56,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851910576] [2024-01-29 22:49:56,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:56,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:56,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:56,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:56,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:56,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 104 [2024-01-29 22:49:56,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 22:49:56,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:56,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 104 [2024-01-29 22:49:56,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:56,434 INFO L124 PetriNetUnfolderBase]: 50/201 cut-off events. [2024-01-29 22:49:56,434 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 22:49:56,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 201 events. 50/201 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 837 event pairs, 16 based on Foata normal form. 8/180 useless extension candidates. Maximal degree in co-relation 315. Up to 74 conditions per place. [2024-01-29 22:49:56,436 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 17 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2024-01-29 22:49:56,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 133 flow [2024-01-29 22:49:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 312 transitions. [2024-01-29 22:49:56,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-01-29 22:49:56,437 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 84 flow. Second operand 4 states and 312 transitions. [2024-01-29 22:49:56,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 133 flow [2024-01-29 22:49:56,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:49:56,439 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 85 flow [2024-01-29 22:49:56,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-01-29 22:49:56,440 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -61 predicate places. [2024-01-29 22:49:56,440 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 85 flow [2024-01-29 22:49:56,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 22:49:56,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:56,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:56,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:49:56,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 22:49:56,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:56,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2017882330, now seen corresponding path program 1 times [2024-01-29 22:49:56,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:56,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694479462] [2024-01-29 22:49:56,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:56,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:56,548 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 22:49:56,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694479462] [2024-01-29 22:49:56,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694479462] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:56,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:56,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:56,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984326932] [2024-01-29 22:49:56,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:56,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:56,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:56,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:56,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 104 [2024-01-29 22:49:56,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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 22:49:56,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:56,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 104 [2024-01-29 22:49:56,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:56,614 INFO L124 PetriNetUnfolderBase]: 53/203 cut-off events. [2024-01-29 22:49:56,614 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-29 22:49:56,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 203 events. 53/203 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 835 event pairs, 16 based on Foata normal form. 8/184 useless extension candidates. Maximal degree in co-relation 322. Up to 62 conditions per place. [2024-01-29 22:49:56,615 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 19 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2024-01-29 22:49:56,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 139 flow [2024-01-29 22:49:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:56,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:56,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2024-01-29 22:49:56,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7548076923076923 [2024-01-29 22:49:56,617 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 85 flow. Second operand 4 states and 314 transitions. [2024-01-29 22:49:56,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 139 flow [2024-01-29 22:49:56,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:56,618 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 84 flow [2024-01-29 22:49:56,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2024-01-29 22:49:56,619 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -61 predicate places. [2024-01-29 22:49:56,619 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 84 flow [2024-01-29 22:49:56,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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 22:49:56,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:56,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:56,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:49:56,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 22:49:56,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -417449098, now seen corresponding path program 1 times [2024-01-29 22:49:56,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606257392] [2024-01-29 22:49:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:56,664 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 22:49:56,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:56,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606257392] [2024-01-29 22:49:56,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606257392] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:56,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:56,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:56,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329958178] [2024-01-29 22:49:56,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:56,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:56,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:56,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:56,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:56,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 104 [2024-01-29 22:49:56,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 22:49:56,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:56,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 104 [2024-01-29 22:49:56,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:56,811 INFO L124 PetriNetUnfolderBase]: 66/192 cut-off events. [2024-01-29 22:49:56,811 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-01-29 22:49:56,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 192 events. 66/192 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 794 event pairs, 11 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 365. Up to 95 conditions per place. [2024-01-29 22:49:56,812 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 22 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2024-01-29 22:49:56,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 143 flow [2024-01-29 22:49:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-01-29 22:49:56,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39903846153846156 [2024-01-29 22:49:56,814 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 84 flow. Second operand 4 states and 166 transitions. [2024-01-29 22:49:56,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 143 flow [2024-01-29 22:49:56,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:56,815 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 81 flow [2024-01-29 22:49:56,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=81, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2024-01-29 22:49:56,816 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -62 predicate places. [2024-01-29 22:49:56,816 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 81 flow [2024-01-29 22:49:56,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 22:49:56,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:56,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:56,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:49:56,817 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 22:49:56,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1896547265, now seen corresponding path program 1 times [2024-01-29 22:49:56,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:56,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243361929] [2024-01-29 22:49:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:56,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:56,863 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 22:49:56,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:56,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243361929] [2024-01-29 22:49:56,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243361929] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:56,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:56,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:56,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176081937] [2024-01-29 22:49:56,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:56,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:56,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:56,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:56,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:56,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 104 [2024-01-29 22:49:56,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 22:49:56,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:56,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 104 [2024-01-29 22:49:56,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:57,001 INFO L124 PetriNetUnfolderBase]: 77/202 cut-off events. [2024-01-29 22:49:57,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:49:57,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 202 events. 77/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 810 event pairs, 21 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 371. Up to 82 conditions per place. [2024-01-29 22:49:57,003 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 20 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2024-01-29 22:49:57,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 131 flow [2024-01-29 22:49:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:57,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-01-29 22:49:57,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4014423076923077 [2024-01-29 22:49:57,004 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 81 flow. Second operand 4 states and 167 transitions. [2024-01-29 22:49:57,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 131 flow [2024-01-29 22:49:57,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 36 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:57,005 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 80 flow [2024-01-29 22:49:57,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2024-01-29 22:49:57,006 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -62 predicate places. [2024-01-29 22:49:57,006 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 80 flow [2024-01-29 22:49:57,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 22:49:57,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:57,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:57,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:49:57,007 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-29 22:49:57,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:57,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1515803524, now seen corresponding path program 1 times [2024-01-29 22:49:57,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:57,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713615056] [2024-01-29 22:49:57,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:57,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:49:57,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:49:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:49:57,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:49:57,045 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:49:57,046 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 68 remaining) [2024-01-29 22:49:57,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 68 remaining) [2024-01-29 22:49:57,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 68 remaining) [2024-01-29 22:49:57,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 68 remaining) [2024-01-29 22:49:57,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 68 remaining) [2024-01-29 22:49:57,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 68 remaining) [2024-01-29 22:49:57,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 68 remaining) [2024-01-29 22:49:57,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 68 remaining) [2024-01-29 22:49:57,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 68 remaining) [2024-01-29 22:49:57,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 68 remaining) [2024-01-29 22:49:57,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 68 remaining) [2024-01-29 22:49:57,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 68 remaining) [2024-01-29 22:49:57,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 68 remaining) [2024-01-29 22:49:57,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 68 remaining) [2024-01-29 22:49:57,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 68 remaining) [2024-01-29 22:49:57,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 68 remaining) [2024-01-29 22:49:57,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 68 remaining) [2024-01-29 22:49:57,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 68 remaining) [2024-01-29 22:49:57,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 68 remaining) [2024-01-29 22:49:57,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 68 remaining) [2024-01-29 22:49:57,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 68 remaining) [2024-01-29 22:49:57,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 68 remaining) [2024-01-29 22:49:57,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 68 remaining) [2024-01-29 22:49:57,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 68 remaining) [2024-01-29 22:49:57,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 68 remaining) [2024-01-29 22:49:57,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 68 remaining) [2024-01-29 22:49:57,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 68 remaining) [2024-01-29 22:49:57,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 68 remaining) [2024-01-29 22:49:57,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 68 remaining) [2024-01-29 22:49:57,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 68 remaining) [2024-01-29 22:49:57,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 68 remaining) [2024-01-29 22:49:57,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 68 remaining) [2024-01-29 22:49:57,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 68 remaining) [2024-01-29 22:49:57,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 68 remaining) [2024-01-29 22:49:57,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 68 remaining) [2024-01-29 22:49:57,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 68 remaining) [2024-01-29 22:49:57,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (31 of 68 remaining) [2024-01-29 22:49:57,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 68 remaining) [2024-01-29 22:49:57,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 68 remaining) [2024-01-29 22:49:57,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 68 remaining) [2024-01-29 22:49:57,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 68 remaining) [2024-01-29 22:49:57,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 68 remaining) [2024-01-29 22:49:57,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 68 remaining) [2024-01-29 22:49:57,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 68 remaining) [2024-01-29 22:49:57,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 68 remaining) [2024-01-29 22:49:57,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 68 remaining) [2024-01-29 22:49:57,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 68 remaining) [2024-01-29 22:49:57,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 68 remaining) [2024-01-29 22:49:57,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 68 remaining) [2024-01-29 22:49:57,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 68 remaining) [2024-01-29 22:49:57,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 68 remaining) [2024-01-29 22:49:57,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 68 remaining) [2024-01-29 22:49:57,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 68 remaining) [2024-01-29 22:49:57,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 68 remaining) [2024-01-29 22:49:57,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 68 remaining) [2024-01-29 22:49:57,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 68 remaining) [2024-01-29 22:49:57,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 68 remaining) [2024-01-29 22:49:57,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 68 remaining) [2024-01-29 22:49:57,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 68 remaining) [2024-01-29 22:49:57,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 68 remaining) [2024-01-29 22:49:57,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 68 remaining) [2024-01-29 22:49:57,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 68 remaining) [2024-01-29 22:49:57,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 68 remaining) [2024-01-29 22:49:57,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 68 remaining) [2024-01-29 22:49:57,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 68 remaining) [2024-01-29 22:49:57,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 68 remaining) [2024-01-29 22:49:57,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 68 remaining) [2024-01-29 22:49:57,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 68 remaining) [2024-01-29 22:49:57,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:49:57,058 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:57,064 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:49:57,064 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:49:57,109 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-01-29 22:49:57,110 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-01-29 22:49:57,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:49:57 BasicIcfg [2024-01-29 22:49:57,111 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:49:57,111 INFO L158 Benchmark]: Toolchain (without parser) took 3572.22ms. Allocated memory was 184.5MB in the beginning and 325.1MB in the end (delta: 140.5MB). Free memory was 110.9MB in the beginning and 292.5MB in the end (delta: -181.6MB). Peak memory consumption was 123.4MB. Max. memory is 16.1GB. [2024-01-29 22:49:57,112 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:49:57,112 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory was 158.0MB in the beginning and 157.9MB in the end (delta: 127.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:49:57,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.33ms. Allocated memory is still 184.5MB. Free memory was 110.8MB in the beginning and 134.3MB in the end (delta: -23.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-01-29 22:49:57,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.44ms. Allocated memory is still 184.5MB. Free memory was 134.3MB in the beginning and 132.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:49:57,112 INFO L158 Benchmark]: Boogie Preprocessor took 38.87ms. Allocated memory is still 184.5MB. Free memory was 132.2MB in the beginning and 129.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:49:57,113 INFO L158 Benchmark]: RCFGBuilder took 528.08ms. Allocated memory is still 184.5MB. Free memory was 129.5MB in the beginning and 84.0MB in the end (delta: 45.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-01-29 22:49:57,113 INFO L158 Benchmark]: TraceAbstraction took 2262.83ms. Allocated memory was 184.5MB in the beginning and 325.1MB in the end (delta: 140.5MB). Free memory was 83.3MB in the beginning and 292.5MB in the end (delta: -209.2MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2024-01-29 22:49:57,115 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 0.15ms. Allocated memory is still 184.5MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory was 158.0MB in the beginning and 157.9MB in the end (delta: 127.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 688.33ms. Allocated memory is still 184.5MB. Free memory was 110.8MB in the beginning and 134.3MB in the end (delta: -23.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.44ms. Allocated memory is still 184.5MB. Free memory was 134.3MB in the beginning and 132.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.87ms. Allocated memory is still 184.5MB. Free memory was 132.2MB in the beginning and 129.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.08ms. Allocated memory is still 184.5MB. Free memory was 129.5MB in the beginning and 84.0MB in the end (delta: 45.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2262.83ms. Allocated memory was 184.5MB in the beginning and 325.1MB in the end (delta: 140.5MB). Free memory was 83.3MB in the beginning and 292.5MB in the end (delta: -209.2MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L930] 0 int num; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L955] 0 pthread_t t1, t2; VAL [empty={4:0}, full={5:0}, m={3:0}, num=0, t1={6:0}, t2={7:0}] [L956] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[0]]]] [L956] 0 num = 1 VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L957] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] [L958] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L959] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L960] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] [L960] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L961] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L945] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[num]],BinaryExpression[COMPLEQ,IdentifierExpression[num],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[num]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[num]],BinaryExpression[COMPLEQ,IdentifierExpression[num],IntegerLiteral[1]]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] COND FALSE 2 !(num == 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[0]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] - UnprovableResult [Line: 935]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 938]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 938]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 940]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 949]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 949]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 950]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 951]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 956]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 957]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 958]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 959]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 960]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 966]: 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: 961]: 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: 960]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 182 locations, 68 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: 2.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 860 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 402 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 684 IncrementalHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 147 mSDtfsCounter, 684 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=1, InterpolantAutomatonStates: 22, 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, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 22:49:57,153 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