./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_58-singlethreaded-lock_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_58-singlethreaded-lock_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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_58-singlethreaded-lock_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_58-singlethreaded-lock_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-3d25acf-m [2024-01-30 14:21:55,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:21:55,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:21:55,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:21:55,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:21:55,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:21:55,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:21:55,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:21:55,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:21:55,963 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:21:55,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:21:55,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:21:55,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:21:55,966 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:21:55,966 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:21:55,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:21:55,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:21:55,967 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:21:55,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:21:55,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:21:55,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:21:55,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:21:55,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:21:55,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:21:55,968 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:21:55,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:21:55,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:21:55,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:21:55,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:21:55,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:21:55,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:21:55,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:21:55,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:55,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:21:55,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:21:55,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:21:55,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:21:55,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:21:55,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:21:55,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:21:55,972 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:21:55,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:21:55,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:21:55,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:21:56,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:21:56,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:21:56,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:21:56,246 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:21:56,246 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:21:56,247 INFO L431 ainManager$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_58-singlethreaded-lock_true.yml/witness.yml [2024-01-30 14:21:56,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:21:56,363 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:21:56,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_58-singlethreaded-lock_true.i [2024-01-30 14:21:57,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:21:57,778 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:21:57,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_58-singlethreaded-lock_true.i [2024-01-30 14:21:57,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a68c722/a3fce487ac784b49a0121381d6dfef98/FLAG434ad0abc [2024-01-30 14:21:57,816 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a68c722/a3fce487ac784b49a0121381d6dfef98 [2024-01-30 14:21:57,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:21:57,818 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:21:57,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:57,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:21:57,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:21:57,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:56" (1/2) ... [2024-01-30 14:21:57,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669fea86 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:57, skipping insertion in model container [2024-01-30 14:21:57,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:56" (1/2) ... [2024-01-30 14:21:57,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37be26c2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:57, skipping insertion in model container [2024-01-30 14:21:57,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:57" (2/2) ... [2024-01-30 14:21:57,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669fea86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:57, skipping insertion in model container [2024-01-30 14:21:57,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:57" (2/2) ... [2024-01-30 14:21:57,830 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:21:57,859 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:21:57,860 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L696] g == 3 [2024-01-30 14:21:57,860 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g == 2 [2024-01-30 14:21:57,860 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (g == 3) && (g == 3) [2024-01-30 14:21:57,860 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-30 14:21:57,860 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] g == 3 [2024-01-30 14:21:57,861 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 0 [2024-01-30 14:21:57,861 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] g == 2 [2024-01-30 14:21:57,861 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 1 [2024-01-30 14:21:57,861 INFO L98 nessWitnessExtractor]: Location invariant before [L684-L684] (unsigned long )arg == 0UL [2024-01-30 14:21:57,861 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 0 [2024-01-30 14:21:57,861 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 2 [2024-01-30 14:21:57,903 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:21:58,095 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_58-singlethreaded-lock_true.i[1096,1109] [2024-01-30 14:21:58,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:58,259 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:21:58,267 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_58-singlethreaded-lock_true.i[1096,1109] [2024-01-30 14:21:58,268 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 [2024-01-30 14:21:58,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:58,356 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:21:58,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58 WrapperNode [2024-01-30 14:21:58,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:58,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:58,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:21:58,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:21:58,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,393 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2024-01-30 14:21:58,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:58,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:21:58,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:21:58,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:21:58,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,437 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]. [2024-01-30 14:21:58,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,438 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:21:58,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:21:58,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:21:58,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:21:58,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (1/1) ... [2024-01-30 14:21:58,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:21:58,493 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) [2024-01-30 14:21:58,510 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 [2024-01-30 14:21:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:21:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:21:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:21:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:21:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:21:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:21:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-30 14:21:58,537 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-30 14:21:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:21:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:21:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:21:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:21:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:21:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:21:58,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:21:58,540 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:21:58,710 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:21:58,712 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:21:58,919 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:21:58,919 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:21:58,978 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:21:58,978 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:21:58,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:58 BoogieIcfgContainer [2024-01-30 14:21:58,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:21:58,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:21:58,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:21:58,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:21:58,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:56" (1/4) ... [2024-01-30 14:21:58,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a116c1e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:58, skipping insertion in model container [2024-01-30 14:21:58,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:21:57" (2/4) ... [2024-01-30 14:21:58,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a116c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:58, skipping insertion in model container [2024-01-30 14:21:58,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:58" (3/4) ... [2024-01-30 14:21:58,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a116c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:58, skipping insertion in model container [2024-01-30 14:21:58,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:58" (4/4) ... [2024-01-30 14:21:58,986 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_58-singlethreaded-lock_true.i [2024-01-30 14:21:59,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:21:59,003 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-01-30 14:21:59,003 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:21:59,034 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-30 14:21:59,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 36 transitions, 76 flow [2024-01-30 14:21:59,097 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-01-30 14:21:59,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:59,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2024-01-30 14:21:59,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 36 transitions, 76 flow [2024-01-30 14:21:59,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 35 transitions, 73 flow [2024-01-30 14:21:59,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:21:59,122 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;@43e77aad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:21:59,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-01-30 14:21:59,129 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:21:59,131 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:21:59,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:59,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:59,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:21:59,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 10 more)] === [2024-01-30 14:21:59,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:59,136 INFO L85 PathProgramCache]: Analyzing trace with hash 5935, now seen corresponding path program 1 times [2024-01-30 14:21:59,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:59,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683772772] [2024-01-30 14:21:59,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:59,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:59,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:59,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683772772] [2024-01-30 14:21:59,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683772772] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:59,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:59,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:21:59,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508838182] [2024-01-30 14:21:59,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:59,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:59,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:59,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:59,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:59,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 36 [2024-01-30 14:21:59,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-01-30 14:21:59,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:59,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 36 [2024-01-30 14:21:59,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:59,450 INFO L124 PetriNetUnfolderBase]: 5/48 cut-off events. [2024-01-30 14:21:59,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:59,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 48 events. 5/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 5 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 46. Up to 26 conditions per place. [2024-01-30 14:21:59,452 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 16 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2024-01-30 14:21:59,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 103 flow [2024-01-30 14:21:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:59,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-01-30 14:21:59,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-01-30 14:21:59,472 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 73 flow. Second operand 3 states and 66 transitions. [2024-01-30 14:21:59,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 103 flow [2024-01-30 14:21:59,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:59,476 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 70 flow [2024-01-30 14:21:59,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-01-30 14:21:59,480 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-01-30 14:21:59,480 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 70 flow [2024-01-30 14:21:59,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-01-30 14:21:59,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:59,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:21:59,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:21:59,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 10 more)] === [2024-01-30 14:21:59,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1191274329, now seen corresponding path program 1 times [2024-01-30 14:21:59,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:59,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229713722] [2024-01-30 14:21:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:59,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:59,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:59,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229713722] [2024-01-30 14:21:59,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229713722] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:59,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:59,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:59,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846223258] [2024-01-30 14:21:59,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:59,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:59,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:59,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:59,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:59,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 36 [2024-01-30 14:21:59,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-01-30 14:21:59,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:59,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 36 [2024-01-30 14:21:59,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:59,581 INFO L124 PetriNetUnfolderBase]: 5/46 cut-off events. [2024-01-30 14:21:59,582 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:21:59,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 46 events. 5/46 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 5 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 67. Up to 26 conditions per place. [2024-01-30 14:21:59,583 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 16 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2024-01-30 14:21:59,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 102 flow [2024-01-30 14:21:59,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-01-30 14:21:59,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2024-01-30 14:21:59,585 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 70 flow. Second operand 3 states and 65 transitions. [2024-01-30 14:21:59,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 102 flow [2024-01-30 14:21:59,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:59,586 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 66 flow [2024-01-30 14:21:59,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-01-30 14:21:59,587 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -3 predicate places. [2024-01-30 14:21:59,588 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 66 flow [2024-01-30 14:21:59,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-01-30 14:21:59,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:59,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:59,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:21:59,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 10 more)] === [2024-01-30 14:21:59,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:59,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1892906930, now seen corresponding path program 1 times [2024-01-30 14:21:59,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:59,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117310616] [2024-01-30 14:21:59,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:59,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:59,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:59,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117310616] [2024-01-30 14:21:59,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117310616] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:59,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:59,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:59,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957700141] [2024-01-30 14:21:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:59,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:59,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:59,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:59,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:59,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 36 [2024-01-30 14:21:59,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-01-30 14:21:59,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:59,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 36 [2024-01-30 14:21:59,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:59,731 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2024-01-30 14:21:59,731 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-30 14:21:59,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 42 events. 5/42 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 1 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 56. Up to 19 conditions per place. [2024-01-30 14:21:59,732 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 17 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-01-30 14:21:59,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 100 flow [2024-01-30 14:21:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-01-30 14:21:59,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-01-30 14:21:59,735 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 64 transitions. [2024-01-30 14:21:59,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 100 flow [2024-01-30 14:21:59,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:59,736 INFO L231 Difference]: Finished difference. Result has 32 places, 27 transitions, 60 flow [2024-01-30 14:21:59,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2024-01-30 14:21:59,737 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2024-01-30 14:21:59,737 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 60 flow [2024-01-30 14:21:59,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-01-30 14:21:59,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:59,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:59,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:21:59,738 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 10 more)] === [2024-01-30 14:21:59,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:59,739 INFO L85 PathProgramCache]: Analyzing trace with hash 891947051, now seen corresponding path program 1 times [2024-01-30 14:21:59,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:59,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654923994] [2024-01-30 14:21:59,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:59,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:59,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:59,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654923994] [2024-01-30 14:21:59,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654923994] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:59,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:59,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:59,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775845189] [2024-01-30 14:21:59,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:59,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:59,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:59,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:59,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:59,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 36 [2024-01-30 14:21:59,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-01-30 14:21:59,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:59,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 36 [2024-01-30 14:21:59,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:59,995 INFO L124 PetriNetUnfolderBase]: 10/48 cut-off events. [2024-01-30 14:21:59,995 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:21:59,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 48 events. 10/48 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 2 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 64. Up to 22 conditions per place. [2024-01-30 14:21:59,996 INFO L140 encePairwiseOnDemand]: 33/36 looper letters, 17 selfloop transitions, 2 changer transitions 2/31 dead transitions. [2024-01-30 14:21:59,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 112 flow [2024-01-30 14:21:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:59,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2024-01-30 14:21:59,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2024-01-30 14:21:59,998 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 60 flow. Second operand 4 states and 94 transitions. [2024-01-30 14:21:59,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 112 flow [2024-01-30 14:21:59,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 31 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:59,999 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 56 flow [2024-01-30 14:21:59,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2024-01-30 14:22:00,000 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2024-01-30 14:22:00,000 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 56 flow [2024-01-30 14:22:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-01-30 14:22:00,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:22:00,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:22:00,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:22:00,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 10 more)] === [2024-01-30 14:22:00,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:22:00,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1880548664, now seen corresponding path program 1 times [2024-01-30 14:22:00,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:22:00,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915480006] [2024-01-30 14:22:00,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:22:00,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:22:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:22:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:22:00,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:22:00,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915480006] [2024-01-30 14:22:00,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915480006] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:22:00,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:22:00,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:22:00,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68918888] [2024-01-30 14:22:00,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:22:00,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:22:00,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:22:00,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:22:00,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:22:00,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 36 [2024-01-30 14:22:00,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-01-30 14:22:00,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:22:00,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 36 [2024-01-30 14:22:00,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:22:00,104 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2024-01-30 14:22:00,105 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:22:00,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 34 events. 4/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 1 based on Foata normal form. 2/33 useless extension candidates. Maximal degree in co-relation 34. Up to 17 conditions per place. [2024-01-30 14:22:00,105 INFO L140 encePairwiseOnDemand]: 33/36 looper letters, 16 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2024-01-30 14:22:00,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 90 flow [2024-01-30 14:22:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:22:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:22:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-01-30 14:22:00,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2024-01-30 14:22:00,110 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 56 flow. Second operand 3 states and 65 transitions. [2024-01-30 14:22:00,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 90 flow [2024-01-30 14:22:00,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 87 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:22:00,111 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 49 flow [2024-01-30 14:22:00,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2024-01-30 14:22:00,112 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -9 predicate places. [2024-01-30 14:22:00,112 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 49 flow [2024-01-30 14:22:00,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-01-30 14:22:00,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:22:00,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:22:00,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:22:00,113 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 10 more)] === [2024-01-30 14:22:00,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:22:00,113 INFO L85 PathProgramCache]: Analyzing trace with hash -973959899, now seen corresponding path program 1 times [2024-01-30 14:22:00,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:22:00,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716663551] [2024-01-30 14:22:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:22:00,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:22:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:22:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:22:00,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:22:00,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716663551] [2024-01-30 14:22:00,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716663551] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:22:00,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:22:00,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:22:00,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093763892] [2024-01-30 14:22:00,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:22:00,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:22:00,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:22:00,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:22:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:22:00,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 36 [2024-01-30 14:22:00,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-01-30 14:22:00,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:22:00,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 36 [2024-01-30 14:22:00,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:22:00,304 INFO L124 PetriNetUnfolderBase]: 4/28 cut-off events. [2024-01-30 14:22:00,304 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:22:00,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 28 events. 4/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 1 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 38. Up to 17 conditions per place. [2024-01-30 14:22:00,304 INFO L140 encePairwiseOnDemand]: 33/36 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2024-01-30 14:22:00,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 87 flow [2024-01-30 14:22:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:22:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:22:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-01-30 14:22:00,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-01-30 14:22:00,308 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 49 flow. Second operand 4 states and 72 transitions. [2024-01-30 14:22:00,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 87 flow [2024-01-30 14:22:00,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:22:00,309 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2024-01-30 14:22:00,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2024-01-30 14:22:00,310 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -10 predicate places. [2024-01-30 14:22:00,310 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2024-01-30 14:22:00,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-01-30 14:22:00,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 13 remaining) [2024-01-30 14:22:00,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 13 remaining) [2024-01-30 14:22:00,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 13 remaining) [2024-01-30 14:22:00,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 13 remaining) [2024-01-30 14:22:00,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 13 remaining) [2024-01-30 14:22:00,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 13 remaining) [2024-01-30 14:22:00,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 13 remaining) [2024-01-30 14:22:00,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 13 remaining) [2024-01-30 14:22:00,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2024-01-30 14:22:00,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 13 remaining) [2024-01-30 14:22:00,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2024-01-30 14:22:00,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 13 remaining) [2024-01-30 14:22:00,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 13 remaining) [2024-01-30 14:22:00,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:22:00,317 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-30 14:22:00,321 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:22:00,322 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:22:00,326 INFO L503 ceAbstractionStarter]: Automizer considered 10 witness invariants [2024-01-30 14:22:00,326 INFO L504 ceAbstractionStarter]: WitnessConsidered=10 [2024-01-30 14:22:00,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:22:00 BasicIcfg [2024-01-30 14:22:00,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:22:00,327 INFO L158 Benchmark]: Toolchain (without parser) took 2509.63ms. Allocated memory is still 201.3MB. Free memory was 127.0MB in the beginning and 166.7MB in the end (delta: -39.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:22:00,328 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 76.0MB in the beginning and 75.8MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:22:00,328 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:22:00,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.71ms. Allocated memory is still 201.3MB. Free memory was 126.7MB in the beginning and 104.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-30 14:22:00,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.17ms. Allocated memory is still 201.3MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:22:00,329 INFO L158 Benchmark]: Boogie Preprocessor took 70.70ms. Allocated memory is still 201.3MB. Free memory was 102.5MB in the beginning and 100.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:22:00,330 INFO L158 Benchmark]: RCFGBuilder took 512.94ms. Allocated memory is still 201.3MB. Free memory was 100.5MB in the beginning and 160.7MB in the end (delta: -60.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-01-30 14:22:00,330 INFO L158 Benchmark]: TraceAbstraction took 1346.62ms. Allocated memory is still 201.3MB. Free memory was 160.7MB in the beginning and 166.7MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:22:00,332 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 0.16ms. Allocated memory is still 113.2MB. Free memory was 76.0MB in the beginning and 75.8MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.71ms. Allocated memory is still 201.3MB. Free memory was 126.7MB in the beginning and 104.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.17ms. Allocated memory is still 201.3MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.70ms. Allocated memory is still 201.3MB. Free memory was 102.5MB in the beginning and 100.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.94ms. Allocated memory is still 201.3MB. Free memory was 100.5MB in the beginning and 160.7MB in the end (delta: -60.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1346.62ms. Allocated memory is still 201.3MB. Free memory was 160.7MB in the beginning and 166.7MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 684]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 13 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: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 301 IncrementalHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 30 mSDtfsCounter, 301 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-30 14:22:00,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE