./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_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_38-traces-ex-4-switch_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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_38-traces-ex-4-switch_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_38-traces-ex-4-switch_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-a340643-m [2024-01-27 14:49:20,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:49:20,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:49:20,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:49:20,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:49:20,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:49:20,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:49:20,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:49:20,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:49:20,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:49:20,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:49:20,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:49:20,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:49:20,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:49:20,230 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:49:20,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:49:20,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:49:20,231 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:49:20,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:49:20,231 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:49:20,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:49:20,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:49:20,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:49:20,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:49:20,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:49:20,233 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:49:20,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:49:20,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:49:20,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:49:20,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:49:20,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:49:20,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:49:20,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:20,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:49:20,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:49:20,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:49:20,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:49:20,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:49:20,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:49:20,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:49:20,236 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:49:20,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:49:20,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:49:20,237 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:49:20,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:49:20,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:49:20,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:49:20,434 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:49:20,434 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:49:20,436 INFO L431 ainManager$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_38-traces-ex-4-switch_true.yml/witness.yml [2024-01-27 14:49:20,522 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:49:20,523 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:49:20,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-01-27 14:49:21,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:49:21,951 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:49:21,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-01-27 14:49:21,964 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d80cbd8/4c026286250942fbb152a63d02acaaf4/FLAGe585dc6a9 [2024-01-27 14:49:21,975 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d80cbd8/4c026286250942fbb152a63d02acaaf4 [2024-01-27 14:49:21,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:49:21,977 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:49:21,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:21,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:49:21,986 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:49:21,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:20" (1/2) ... [2024-01-27 14:49:21,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9555a9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:21, skipping insertion in model container [2024-01-27 14:49:21,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:20" (1/2) ... [2024-01-27 14:49:21,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5da648ec and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:21, skipping insertion in model container [2024-01-27 14:49:21,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:21" (2/2) ... [2024-01-27 14:49:21,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9555a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:21, skipping insertion in model container [2024-01-27 14:49:21,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:21" (2/2) ... [2024-01-27 14:49:21,989 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:49:22,022 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:49:22,023 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g == 2 [2024-01-27 14:49:22,023 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 2 [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 2 [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g == 2 [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 2 [2024-01-27 14:49:22,024 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 2 [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 2 [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 2 [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-27 14:49:22,025 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 14:49:22,026 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 2 [2024-01-27 14:49:22,026 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 2 [2024-01-27 14:49:22,026 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 1 [2024-01-27 14:49:22,026 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 14:49:22,026 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-27 14:49:22,059 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:49:22,201 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_38-traces-ex-4-switch_true.i[1095,1108] [2024-01-27 14:49:22,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:22,325 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:49:22,334 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_38-traces-ex-4-switch_true.i[1095,1108] [2024-01-27 14:49:22,336 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:49:22,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:22,547 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:49:22,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22 WrapperNode [2024-01-27 14:49:22,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:22,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:22,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:49:22,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:49:22,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,649 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-01-27 14:49:22,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:22,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:49:22,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:49:22,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:49:22,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,677 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-27 14:49:22,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:49:22,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:49:22,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:49:22,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:49:22,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (1/1) ... [2024-01-27 14:49:22,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:22,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:49:22,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 14:49:22,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 14:49:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:49:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 14:49:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 14:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:49:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:49:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:49:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:49:22,808 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:49:22,913 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:49:22,915 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:49:23,144 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:49:23,145 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:49:23,216 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:49:23,216 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:49:23,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:23 BoogieIcfgContainer [2024-01-27 14:49:23,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:49:23,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:49:23,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:49:23,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:49:23,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:20" (1/4) ... [2024-01-27 14:49:23,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bd1158 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:23, skipping insertion in model container [2024-01-27 14:49:23,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:49:21" (2/4) ... [2024-01-27 14:49:23,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bd1158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:23, skipping insertion in model container [2024-01-27 14:49:23,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22" (3/4) ... [2024-01-27 14:49:23,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bd1158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:23, skipping insertion in model container [2024-01-27 14:49:23,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:23" (4/4) ... [2024-01-27 14:49:23,227 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_38-traces-ex-4-switch_true.i [2024-01-27 14:49:23,242 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:49:23,243 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-01-27 14:49:23,243 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:49:23,308 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:49:23,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 148 flow [2024-01-27 14:49:23,384 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2024-01-27 14:49:23,384 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:23,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2024-01-27 14:49:23,388 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 148 flow [2024-01-27 14:49:23,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2024-01-27 14:49:23,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:49:23,418 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;@50a5edd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:49:23,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-01-27 14:49:23,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:49:23,422 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:49:23,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:23,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:23,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:49:23,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:49:23,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash 8518, now seen corresponding path program 1 times [2024-01-27 14:49:23,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:23,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424443105] [2024-01-27 14:49:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:23,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:23,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:23,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424443105] [2024-01-27 14:49:23,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424443105] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:23,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:23,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:49:23,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080884411] [2024-01-27 14:49:23,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:23,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:23,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:23,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:23,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 72 [2024-01-27 14:49:23,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:23,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:23,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 72 [2024-01-27 14:49:23,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:23,897 INFO L124 PetriNetUnfolderBase]: 194/788 cut-off events. [2024-01-27 14:49:23,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:23,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 788 events. 194/788 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4951 event pairs, 126 based on Foata normal form. 46/726 useless extension candidates. Maximal degree in co-relation 1259. Up to 346 conditions per place. [2024-01-27 14:49:23,909 INFO L140 encePairwiseOnDemand]: 53/72 looper letters, 39 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-01-27 14:49:23,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 251 flow [2024-01-27 14:49:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2024-01-27 14:49:23,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2024-01-27 14:49:23,923 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 145 flow. Second operand 3 states and 159 transitions. [2024-01-27 14:49:23,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 251 flow [2024-01-27 14:49:23,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 78 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:49:23,933 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 188 flow [2024-01-27 14:49:23,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2024-01-27 14:49:23,938 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2024-01-27 14:49:23,939 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 188 flow [2024-01-27 14:49:23,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:23,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:23,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:49:23,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:49:23,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:49:23,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash 254104825, now seen corresponding path program 1 times [2024-01-27 14:49:23,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:23,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574293467] [2024-01-27 14:49:23,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:23,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:24,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:24,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574293467] [2024-01-27 14:49:24,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574293467] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:24,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:24,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:24,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615864234] [2024-01-27 14:49:24,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:24,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:24,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:24,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:24,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:24,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 72 [2024-01-27 14:49:24,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 72 [2024-01-27 14:49:24,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:24,297 INFO L124 PetriNetUnfolderBase]: 112/599 cut-off events. [2024-01-27 14:49:24,297 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-01-27 14:49:24,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 599 events. 112/599 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3708 event pairs, 23 based on Foata normal form. 107/684 useless extension candidates. Maximal degree in co-relation 1001. Up to 243 conditions per place. [2024-01-27 14:49:24,300 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 28 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-01-27 14:49:24,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 248 flow [2024-01-27 14:49:24,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 202 transitions. [2024-01-27 14:49:24,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7013888888888888 [2024-01-27 14:49:24,303 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 188 flow. Second operand 4 states and 202 transitions. [2024-01-27 14:49:24,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 248 flow [2024-01-27 14:49:24,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 68 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:24,306 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 160 flow [2024-01-27 14:49:24,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-01-27 14:49:24,306 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2024-01-27 14:49:24,307 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 160 flow [2024-01-27 14:49:24,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:24,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:24,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:49:24,308 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:49:24,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:24,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1878010369, now seen corresponding path program 1 times [2024-01-27 14:49:24,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:24,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56462666] [2024-01-27 14:49:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:24,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:24,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:24,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56462666] [2024-01-27 14:49:24,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56462666] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:24,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:24,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:24,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346804110] [2024-01-27 14:49:24,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:24,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:24,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:24,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:24,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:24,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 72 [2024-01-27 14:49:24,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 72 [2024-01-27 14:49:24,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:24,511 INFO L124 PetriNetUnfolderBase]: 211/716 cut-off events. [2024-01-27 14:49:24,512 INFO L125 PetriNetUnfolderBase]: For 110/139 co-relation queries the response was YES. [2024-01-27 14:49:24,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 716 events. 211/716 cut-off events. For 110/139 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4159 event pairs, 116 based on Foata normal form. 10/695 useless extension candidates. Maximal degree in co-relation 1389. Up to 313 conditions per place. [2024-01-27 14:49:24,514 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 48 selfloop transitions, 11 changer transitions 6/85 dead transitions. [2024-01-27 14:49:24,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 85 transitions, 348 flow [2024-01-27 14:49:24,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:49:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:49:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 222 transitions. [2024-01-27 14:49:24,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-01-27 14:49:24,516 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 160 flow. Second operand 5 states and 222 transitions. [2024-01-27 14:49:24,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 85 transitions, 348 flow [2024-01-27 14:49:24,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 85 transitions, 345 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:24,518 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 181 flow [2024-01-27 14:49:24,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=181, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-01-27 14:49:24,519 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2024-01-27 14:49:24,519 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 181 flow [2024-01-27 14:49:24,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:24,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:24,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:49:24,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:49:24,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:24,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1668519583, now seen corresponding path program 1 times [2024-01-27 14:49:24,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:24,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789874098] [2024-01-27 14:49:24,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:24,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:24,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:24,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789874098] [2024-01-27 14:49:24,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789874098] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:24,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:24,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:24,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505668271] [2024-01-27 14:49:24,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:24,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:24,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:24,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:24,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2024-01-27 14:49:24,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2024-01-27 14:49:24,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:24,644 INFO L124 PetriNetUnfolderBase]: 152/530 cut-off events. [2024-01-27 14:49:24,644 INFO L125 PetriNetUnfolderBase]: For 202/204 co-relation queries the response was YES. [2024-01-27 14:49:24,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 530 events. 152/530 cut-off events. For 202/204 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2741 event pairs, 117 based on Foata normal form. 58/574 useless extension candidates. Maximal degree in co-relation 1064. Up to 268 conditions per place. [2024-01-27 14:49:24,646 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 29 selfloop transitions, 3 changer transitions 5/59 dead transitions. [2024-01-27 14:49:24,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 237 flow [2024-01-27 14:49:24,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:24,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2024-01-27 14:49:24,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-01-27 14:49:24,647 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 181 flow. Second operand 3 states and 160 transitions. [2024-01-27 14:49:24,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 237 flow [2024-01-27 14:49:24,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:49:24,649 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 149 flow [2024-01-27 14:49:24,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2024-01-27 14:49:24,650 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -11 predicate places. [2024-01-27 14:49:24,650 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 149 flow [2024-01-27 14:49:24,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:24,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:24,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:49:24,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:49:24,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:24,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1479771018, now seen corresponding path program 1 times [2024-01-27 14:49:24,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:24,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345442244] [2024-01-27 14:49:24,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:24,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:24,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:24,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:24,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345442244] [2024-01-27 14:49:24,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345442244] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:24,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:24,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:24,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275054773] [2024-01-27 14:49:24,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:24,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:24,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:24,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:24,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:24,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 72 [2024-01-27 14:49:24,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 72 [2024-01-27 14:49:24,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:24,744 INFO L124 PetriNetUnfolderBase]: 32/182 cut-off events. [2024-01-27 14:49:24,744 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-01-27 14:49:24,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 182 events. 32/182 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 605 event pairs, 12 based on Foata normal form. 10/185 useless extension candidates. Maximal degree in co-relation 336. Up to 49 conditions per place. [2024-01-27 14:49:24,745 INFO L140 encePairwiseOnDemand]: 65/72 looper letters, 14 selfloop transitions, 6 changer transitions 6/54 dead transitions. [2024-01-27 14:49:24,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 54 transitions, 203 flow [2024-01-27 14:49:24,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 182 transitions. [2024-01-27 14:49:24,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2024-01-27 14:49:24,746 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 149 flow. Second operand 3 states and 182 transitions. [2024-01-27 14:49:24,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 54 transitions, 203 flow [2024-01-27 14:49:24,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 179 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-01-27 14:49:24,748 INFO L231 Difference]: Finished difference. Result has 55 places, 46 transitions, 131 flow [2024-01-27 14:49:24,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=55, PETRI_TRANSITIONS=46} [2024-01-27 14:49:24,749 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -19 predicate places. [2024-01-27 14:49:24,749 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 46 transitions, 131 flow [2024-01-27 14:49:24,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:24,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:24,749 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] [2024-01-27 14:49:24,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:49:24,750 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 14:49:24,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:24,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1065785080, now seen corresponding path program 1 times [2024-01-27 14:49:24,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:24,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812629996] [2024-01-27 14:49:24,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:24,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:49:24,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:49:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:49:24,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:49:24,788 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:49:24,789 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 39 remaining) [2024-01-27 14:49:24,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 39 remaining) [2024-01-27 14:49:24,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 39 remaining) [2024-01-27 14:49:24,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2024-01-27 14:49:24,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 39 remaining) [2024-01-27 14:49:24,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 39 remaining) [2024-01-27 14:49:24,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-01-27 14:49:24,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 39 remaining) [2024-01-27 14:49:24,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 39 remaining) [2024-01-27 14:49:24,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 39 remaining) [2024-01-27 14:49:24,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 39 remaining) [2024-01-27 14:49:24,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 39 remaining) [2024-01-27 14:49:24,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 39 remaining) [2024-01-27 14:49:24,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 39 remaining) [2024-01-27 14:49:24,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 39 remaining) [2024-01-27 14:49:24,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 39 remaining) [2024-01-27 14:49:24,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 39 remaining) [2024-01-27 14:49:24,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 39 remaining) [2024-01-27 14:49:24,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 39 remaining) [2024-01-27 14:49:24,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 39 remaining) [2024-01-27 14:49:24,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 39 remaining) [2024-01-27 14:49:24,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 39 remaining) [2024-01-27 14:49:24,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 39 remaining) [2024-01-27 14:49:24,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 39 remaining) [2024-01-27 14:49:24,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 39 remaining) [2024-01-27 14:49:24,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 39 remaining) [2024-01-27 14:49:24,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 39 remaining) [2024-01-27 14:49:24,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 39 remaining) [2024-01-27 14:49:24,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 39 remaining) [2024-01-27 14:49:24,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 39 remaining) [2024-01-27 14:49:24,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 39 remaining) [2024-01-27 14:49:24,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 39 remaining) [2024-01-27 14:49:24,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 39 remaining) [2024-01-27 14:49:24,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 39 remaining) [2024-01-27 14:49:24,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 39 remaining) [2024-01-27 14:49:24,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 39 remaining) [2024-01-27 14:49:24,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 39 remaining) [2024-01-27 14:49:24,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 39 remaining) [2024-01-27 14:49:24,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 39 remaining) [2024-01-27 14:49:24,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:49:24,797 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-27 14:49:24,802 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:49:24,802 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:49:24,821 INFO L503 ceAbstractionStarter]: Automizer considered 21 witness invariants [2024-01-27 14:49:24,821 INFO L504 ceAbstractionStarter]: WitnessConsidered=21 [2024-01-27 14:49:24,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:49:24 BasicIcfg [2024-01-27 14:49:24,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:49:24,823 INFO L158 Benchmark]: Toolchain (without parser) took 2845.73ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 73.9MB in the beginning and 92.3MB in the end (delta: -18.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2024-01-27 14:49:24,823 INFO L158 Benchmark]: Witness Parser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:24,823 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:24,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.45ms. Allocated memory is still 134.2MB. Free memory was 73.9MB in the beginning and 100.7MB in the end (delta: -26.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-01-27 14:49:24,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.64ms. Allocated memory is still 134.2MB. Free memory was 100.7MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:24,824 INFO L158 Benchmark]: Boogie Preprocessor took 73.20ms. Allocated memory is still 134.2MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:24,824 INFO L158 Benchmark]: RCFGBuilder took 492.09ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 68.8MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-27 14:49:24,824 INFO L158 Benchmark]: TraceAbstraction took 1603.77ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 67.7MB in the beginning and 92.3MB in the end (delta: -24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:24,826 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 0.24ms. Allocated memory is still 134.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.45ms. Allocated memory is still 134.2MB. Free memory was 73.9MB in the beginning and 100.7MB in the end (delta: -26.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.64ms. Allocated memory is still 134.2MB. Free memory was 100.7MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.20ms. Allocated memory is still 134.2MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.09ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 68.8MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1603.77ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 67.7MB in the beginning and 92.3MB in the end (delta: -24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 699]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L681] 0 int g = 2; [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 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=2, id={5:0}] [L697] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=2, id={5:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L687] 1 g = 1 VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L699] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] - 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: 700]: 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: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: 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 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: 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. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: 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 invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - 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: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 119 locations, 39 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: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 295 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 354 IncrementalHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 20 mSDtfsCounter, 354 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=188occurred in iteration=1, 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, 0.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 14:49:24,863 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