./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.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/13-privatized_47-refine-protected2_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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/goblint-regression/13-privatized_47-refine-protected2_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_47-refine-protected2_true.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-2755261-m [2024-01-26 15:18:44,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:18:44,372 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:18:44,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:18:44,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:18:44,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:18:44,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:18:44,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:18:44,403 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:18:44,406 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:18:44,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:18:44,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:18:44,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:18:44,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:18:44,408 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:18:44,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:18:44,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:18:44,409 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:18:44,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:18:44,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:18:44,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:18:44,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:18:44,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:18:44,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:18:44,410 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:18:44,411 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:18:44,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:18:44,411 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:18:44,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:18:44,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:18:44,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:18:44,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:18:44,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:44,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:18:44,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:18:44,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:18:44,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:18:44,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:18:44,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:18:44,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:18:44,414 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:18:44,415 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:18:44,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:18:44,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:18:44,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:18:44,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:18:44,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:18:44,634 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:18:44,634 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:18:44,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i [2024-01-26 15:18:45,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:18:45,949 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:18:45,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i [2024-01-26 15:18:45,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0796449/f649a2bc4189421a8613c84daa6d2d7e/FLAGd4664369c [2024-01-26 15:18:45,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0796449/f649a2bc4189421a8613c84daa6d2d7e [2024-01-26 15:18:45,973 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:18:45,974 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:18:45,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_47-refine-protected2_true.yml/witness.yml [2024-01-26 15:18:46,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:18:46,050 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:18:46,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:46,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:18:46,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:18:46,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:45" (1/2) ... [2024-01-26 15:18:46,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2727877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:46, skipping insertion in model container [2024-01-26 15:18:46,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:45" (1/2) ... [2024-01-26 15:18:46,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a7dc653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:46, skipping insertion in model container [2024-01-26 15:18:46,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:46" (2/2) ... [2024-01-26 15:18:46,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2727877 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46, skipping insertion in model container [2024-01-26 15:18:46,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:46" (2/2) ... [2024-01-26 15:18:46,058 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:18:46,090 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:18:46,092 INFO L98 nessWitnessExtractor]: Location invariant before [L684-L684] (unsigned long )arg == 0UL [2024-01-26 15:18:46,092 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-26 15:18:46,092 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] g == 1 [2024-01-26 15:18:46,092 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-26 15:18:46,092 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 1 [2024-01-26 15:18:46,093 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] 0 <= g [2024-01-26 15:18:46,093 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 0 || g == 1 [2024-01-26 15:18:46,093 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g <= 1 [2024-01-26 15:18:46,093 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g <= 1 [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 0 || g == 1 [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 0 || g == 1 [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g <= 1 [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L696] g == 0 || g == 1 [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L696] g <= 1 [2024-01-26 15:18:46,094 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L696] 0 <= g [2024-01-26 15:18:46,095 INFO L98 nessWitnessExtractor]: Location invariant after [L693-L696] g == 0 [2024-01-26 15:18:46,095 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 0 [2024-01-26 15:18:46,095 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] g == 0 || g == 1 [2024-01-26 15:18:46,095 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] g <= 1 [2024-01-26 15:18:46,095 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] 0 <= g [2024-01-26 15:18:46,096 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-26 15:18:46,133 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:18:46,281 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i[1094,1107] [2024-01-26 15:18:46,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:46,410 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:18:46,422 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i[1094,1107] [2024-01-26 15:18:46,423 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-26 15:18:46,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:46,517 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:18:46,517 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46 WrapperNode [2024-01-26 15:18:46,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:46,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:46,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:18:46,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:18:46,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,558 INFO L138 Inliner]: procedures = 163, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-01-26 15:18:46,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:46,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:18:46,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:18:46,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:18:46,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,593 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-26 15:18:46,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:18:46,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:18:46,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:18:46,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:18:46,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (1/1) ... [2024-01-26 15:18:46,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:46,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:18:46,679 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) [2024-01-26 15:18:46,684 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 [2024-01-26 15:18:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:18:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:18:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:18:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-26 15:18:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:18:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:18:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-26 15:18:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-26 15:18:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:18:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:18:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:18:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:18:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-26 15:18:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:18:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:18:46,714 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:18:46,818 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:18:46,820 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:18:47,100 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:18:47,100 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:18:47,187 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:18:47,187 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:18:47,187 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:47 BoogieIcfgContainer [2024-01-26 15:18:47,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:18:47,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:18:47,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:18:47,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:18:47,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:18:45" (1/4) ... [2024-01-26 15:18:47,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13884a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:47, skipping insertion in model container [2024-01-26 15:18:47,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:46" (2/4) ... [2024-01-26 15:18:47,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13884a7e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:47, skipping insertion in model container [2024-01-26 15:18:47,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:46" (3/4) ... [2024-01-26 15:18:47,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13884a7e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:47, skipping insertion in model container [2024-01-26 15:18:47,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:47" (4/4) ... [2024-01-26 15:18:47,194 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_47-refine-protected2_true.i [2024-01-26 15:18:47,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:18:47,211 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-01-26 15:18:47,211 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:18:47,270 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-26 15:18:47,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 59 transitions, 122 flow [2024-01-26 15:18:47,320 INFO L124 PetriNetUnfolderBase]: 3/58 cut-off events. [2024-01-26 15:18:47,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:47,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-01-26 15:18:47,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 59 transitions, 122 flow [2024-01-26 15:18:47,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 58 transitions, 119 flow [2024-01-26 15:18:47,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:18:47,338 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;@489c2a7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:18:47,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-01-26 15:18:47,340 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:18:47,340 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:18:47,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:47,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:47,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:18:47,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 25 more)] === [2024-01-26 15:18:47,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash 7183, now seen corresponding path program 1 times [2024-01-26 15:18:47,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:47,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453767499] [2024-01-26 15:18:47,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:47,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:47,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:47,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453767499] [2024-01-26 15:18:47,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453767499] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:47,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:47,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:18:47,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377017057] [2024-01-26 15:18:47,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:47,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:47,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:47,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:47,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:47,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 59 [2024-01-26 15:18:47,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:47,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:47,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 59 [2024-01-26 15:18:47,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:47,700 INFO L124 PetriNetUnfolderBase]: 72/291 cut-off events. [2024-01-26 15:18:47,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:47,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 291 events. 72/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1649 event pairs, 34 based on Foata normal form. 55/312 useless extension candidates. Maximal degree in co-relation 463. Up to 120 conditions per place. [2024-01-26 15:18:47,705 INFO L140 encePairwiseOnDemand]: 40/59 looper letters, 30 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2024-01-26 15:18:47,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 61 transitions, 193 flow [2024-01-26 15:18:47,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:47,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-01-26 15:18:47,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7570621468926554 [2024-01-26 15:18:47,718 INFO L175 Difference]: Start difference. First operand has 59 places, 58 transitions, 119 flow. Second operand 3 states and 134 transitions. [2024-01-26 15:18:47,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 61 transitions, 193 flow [2024-01-26 15:18:47,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 61 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:47,725 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 148 flow [2024-01-26 15:18:47,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-01-26 15:18:47,731 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2024-01-26 15:18:47,732 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 148 flow [2024-01-26 15:18:47,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:47,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:47,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-26 15:18:47,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:18:47,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 25 more)] === [2024-01-26 15:18:47,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 214264105, now seen corresponding path program 1 times [2024-01-26 15:18:47,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:47,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722691132] [2024-01-26 15:18:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:47,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:47,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:47,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722691132] [2024-01-26 15:18:47,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722691132] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:47,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:47,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:47,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915043514] [2024-01-26 15:18:47,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:47,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:47,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:47,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:47,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:47,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 59 [2024-01-26 15:18:47,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-01-26 15:18:47,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:47,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 59 [2024-01-26 15:18:47,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:47,971 INFO L124 PetriNetUnfolderBase]: 53/252 cut-off events. [2024-01-26 15:18:47,971 INFO L125 PetriNetUnfolderBase]: For 41/45 co-relation queries the response was YES. [2024-01-26 15:18:47,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 252 events. 53/252 cut-off events. For 41/45 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1302 event pairs, 31 based on Foata normal form. 27/260 useless extension candidates. Maximal degree in co-relation 424. Up to 101 conditions per place. [2024-01-26 15:18:47,975 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 21 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-01-26 15:18:47,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 200 flow [2024-01-26 15:18:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:47,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2024-01-26 15:18:47,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7372881355932204 [2024-01-26 15:18:47,981 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 148 flow. Second operand 4 states and 174 transitions. [2024-01-26 15:18:47,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 200 flow [2024-01-26 15:18:47,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:47,984 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 136 flow [2024-01-26 15:18:47,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-01-26 15:18:47,985 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2024-01-26 15:18:47,985 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 136 flow [2024-01-26 15:18:47,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-01-26 15:18:47,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:47,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:47,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:18:47,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 25 more)] === [2024-01-26 15:18:47,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:47,989 INFO L85 PathProgramCache]: Analyzing trace with hash -986982867, now seen corresponding path program 1 times [2024-01-26 15:18:47,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:47,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527168014] [2024-01-26 15:18:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:47,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:48,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:48,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527168014] [2024-01-26 15:18:48,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527168014] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:48,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:48,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351933820] [2024-01-26 15:18:48,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:48,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:48,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:48,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:48,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-01-26 15:18:48,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-01-26 15:18:48,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:48,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-01-26 15:18:48,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:48,263 INFO L124 PetriNetUnfolderBase]: 82/266 cut-off events. [2024-01-26 15:18:48,272 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-01-26 15:18:48,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 266 events. 82/266 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1398 event pairs, 30 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 539. Up to 109 conditions per place. [2024-01-26 15:18:48,273 INFO L140 encePairwiseOnDemand]: 50/59 looper letters, 30 selfloop transitions, 10 changer transitions 4/61 dead transitions. [2024-01-26 15:18:48,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 250 flow [2024-01-26 15:18:48,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:48,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-01-26 15:18:48,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661016949152542 [2024-01-26 15:18:48,275 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 136 flow. Second operand 5 states and 167 transitions. [2024-01-26 15:18:48,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 250 flow [2024-01-26 15:18:48,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 61 transitions, 247 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:48,277 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 151 flow [2024-01-26 15:18:48,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2024-01-26 15:18:48,278 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -6 predicate places. [2024-01-26 15:18:48,279 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 151 flow [2024-01-26 15:18:48,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-01-26 15:18:48,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:48,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:48,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:18:48,281 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 25 more)] === [2024-01-26 15:18:48,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:48,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1234481920, now seen corresponding path program 1 times [2024-01-26 15:18:48,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:48,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612657563] [2024-01-26 15:18:48,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:48,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:48,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:48,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612657563] [2024-01-26 15:18:48,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612657563] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:48,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:48,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:48,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562424173] [2024-01-26 15:18:48,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:48,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:48,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:48,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:48,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:48,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 59 [2024-01-26 15:18:48,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-01-26 15:18:48,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:48,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 59 [2024-01-26 15:18:48,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:48,393 INFO L124 PetriNetUnfolderBase]: 36/140 cut-off events. [2024-01-26 15:18:48,393 INFO L125 PetriNetUnfolderBase]: For 65/67 co-relation queries the response was YES. [2024-01-26 15:18:48,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 140 events. 36/140 cut-off events. For 65/67 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 514 event pairs, 12 based on Foata normal form. 45/181 useless extension candidates. Maximal degree in co-relation 278. Up to 67 conditions per place. [2024-01-26 15:18:48,394 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 16 selfloop transitions, 2 changer transitions 8/42 dead transitions. [2024-01-26 15:18:48,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 42 transitions, 165 flow [2024-01-26 15:18:48,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:48,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-01-26 15:18:48,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.672316384180791 [2024-01-26 15:18:48,396 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 151 flow. Second operand 3 states and 119 transitions. [2024-01-26 15:18:48,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 42 transitions, 165 flow [2024-01-26 15:18:48,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 42 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:48,398 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 96 flow [2024-01-26 15:18:48,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2024-01-26 15:18:48,399 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -13 predicate places. [2024-01-26 15:18:48,399 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 96 flow [2024-01-26 15:18:48,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-01-26 15:18:48,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:48,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:48,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:18:48,400 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 25 more)] === [2024-01-26 15:18:48,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash 327783134, now seen corresponding path program 1 times [2024-01-26 15:18:48,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:48,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359707880] [2024-01-26 15:18:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:48,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:48,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359707880] [2024-01-26 15:18:48,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359707880] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:48,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:48,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:48,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845920211] [2024-01-26 15:18:48,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:48,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:48,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:48,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:48,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 59 [2024-01-26 15:18:48,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-01-26 15:18:48,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:48,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 59 [2024-01-26 15:18:48,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:48,525 INFO L124 PetriNetUnfolderBase]: 7/62 cut-off events. [2024-01-26 15:18:48,525 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-26 15:18:48,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 62 events. 7/62 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 2 based on Foata normal form. 5/65 useless extension candidates. Maximal degree in co-relation 100. Up to 18 conditions per place. [2024-01-26 15:18:48,526 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 10 selfloop transitions, 3 changer transitions 3/32 dead transitions. [2024-01-26 15:18:48,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 119 flow [2024-01-26 15:18:48,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:48,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-01-26 15:18:48,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.807909604519774 [2024-01-26 15:18:48,527 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 96 flow. Second operand 3 states and 143 transitions. [2024-01-26 15:18:48,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 119 flow [2024-01-26 15:18:48,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 32 transitions, 108 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-01-26 15:18:48,530 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 72 flow [2024-01-26 15:18:48,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2024-01-26 15:18:48,532 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -21 predicate places. [2024-01-26 15:18:48,532 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 72 flow [2024-01-26 15:18:48,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-01-26 15:18:48,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:48,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:48,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:18:48,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 25 more)] === [2024-01-26 15:18:48,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:48,533 INFO L85 PathProgramCache]: Analyzing trace with hash 449467246, now seen corresponding path program 1 times [2024-01-26 15:18:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:48,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750136664] [2024-01-26 15:18:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:48,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:18:48,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-26 15:18:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:18:48,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-26 15:18:48,591 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-26 15:18:48,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 28 remaining) [2024-01-26 15:18:48,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 28 remaining) [2024-01-26 15:18:48,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 28 remaining) [2024-01-26 15:18:48,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 28 remaining) [2024-01-26 15:18:48,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 28 remaining) [2024-01-26 15:18:48,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 28 remaining) [2024-01-26 15:18:48,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (21 of 28 remaining) [2024-01-26 15:18:48,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (20 of 28 remaining) [2024-01-26 15:18:48,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 28 remaining) [2024-01-26 15:18:48,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 28 remaining) [2024-01-26 15:18:48,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 28 remaining) [2024-01-26 15:18:48,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 28 remaining) [2024-01-26 15:18:48,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 28 remaining) [2024-01-26 15:18:48,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 28 remaining) [2024-01-26 15:18:48,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 28 remaining) [2024-01-26 15:18:48,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 28 remaining) [2024-01-26 15:18:48,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 28 remaining) [2024-01-26 15:18:48,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 28 remaining) [2024-01-26 15:18:48,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 28 remaining) [2024-01-26 15:18:48,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 28 remaining) [2024-01-26 15:18:48,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 28 remaining) [2024-01-26 15:18:48,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 28 remaining) [2024-01-26 15:18:48,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 28 remaining) [2024-01-26 15:18:48,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 28 remaining) [2024-01-26 15:18:48,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 28 remaining) [2024-01-26 15:18:48,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 28 remaining) [2024-01-26 15:18:48,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 28 remaining) [2024-01-26 15:18:48,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 28 remaining) [2024-01-26 15:18:48,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:18:48,602 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-26 15:18:48,607 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:18:48,607 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:18:48,646 INFO L503 ceAbstractionStarter]: Automizer considered 17 witness invariants [2024-01-26 15:18:48,648 INFO L504 ceAbstractionStarter]: WitnessConsidered=17 [2024-01-26 15:18:48,649 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:18:48 BasicIcfg [2024-01-26 15:18:48,649 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:18:48,650 INFO L158 Benchmark]: Toolchain (without parser) took 2600.11ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 105.3MB in the beginning and 80.8MB in the end (delta: 24.5MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. [2024-01-26 15:18:48,653 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:48,654 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:48,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.24ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 82.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:48,655 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.62ms. Allocated memory is still 167.8MB. Free memory was 82.3MB in the beginning and 80.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:48,655 INFO L158 Benchmark]: Boogie Preprocessor took 54.49ms. Allocated memory is still 167.8MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:48,655 INFO L158 Benchmark]: RCFGBuilder took 571.02ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 78.5MB in the beginning and 220.2MB in the end (delta: -141.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-01-26 15:18:48,655 INFO L158 Benchmark]: TraceAbstraction took 1460.35ms. Allocated memory is still 257.9MB. Free memory was 220.2MB in the beginning and 80.8MB in the end (delta: 139.5MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. [2024-01-26 15:18:48,656 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.24ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 82.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.62ms. Allocated memory is still 167.8MB. Free memory was 82.3MB in the beginning and 80.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.49ms. Allocated memory is still 167.8MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 571.02ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 78.5MB in the beginning and 220.2MB in the end (delta: -141.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1460.35ms. Allocated memory is still 257.9MB. Free memory was 220.2MB in the beginning and 80.8MB in the end (delta: 139.5MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 693]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L690] 0 pthread_t id; VAL [A={3:0}, g=0, id={5:0}] [L691] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, g=0, id={5:0}] [L684] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=0] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=0] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[g]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=0] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[1]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=0] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]]]]] [L685] 1 g = 1 VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1] [L693] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[g]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] [L693] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[1]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] [L693] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] [L693] COND TRUE 0 \read(g) VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] [L694] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]]]] [L694] CALL 0 __VERIFIER_assert(g) [L19] COND FALSE 0 !(!(cond)) VAL [A={3:0}, \old(cond)=1, arg={0:0}, arg={0:0}, cond=1, g=1] [L694] RET 0 __VERIFIER_assert(g) [L693] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] VAL [A={3:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 19]: 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: 19]: 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: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: 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: 684]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 80 locations, 28 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 289 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 170 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 67 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-26 15:18:48,682 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