./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_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_18-first-reads_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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_18-first-reads_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_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-59af5db-m [2024-02-02 09:17:28,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:17:28,965 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:17:28,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:17:28,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:17:28,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:17:28,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:17:28,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:17:28,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:17:29,002 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:17:29,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:17:29,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:17:29,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:17:29,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:17:29,005 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:17:29,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:17:29,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:17:29,006 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:17:29,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:17:29,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:17:29,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:17:29,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:17:29,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:17:29,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:17:29,008 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:17:29,008 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:17:29,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:17:29,008 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:17:29,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:17:29,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:17:29,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:17:29,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:17:29,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:29,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:17:29,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:17:29,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:17:29,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:17:29,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:17:29,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:17:29,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:17:29,012 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:17:29,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:17:29,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:17:29,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:17:29,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:17:29,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:17:29,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:17:29,262 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:17:29,264 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:17:29,266 INFO L431 ainManager$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_18-first-reads_true.yml/witness.yml [2024-02-02 09:17:29,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:17:29,475 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:17:29,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2024-02-02 09:17:30,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:17:30,883 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:17:30,884 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2024-02-02 09:17:30,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a28d5c58a/62f726b6400346c2b419efa4e89fdf53/FLAG5f201d31d [2024-02-02 09:17:30,915 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a28d5c58a/62f726b6400346c2b419efa4e89fdf53 [2024-02-02 09:17:30,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:17:30,918 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:17:30,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:30,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:17:30,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:17:30,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:29" (1/2) ... [2024-02-02 09:17:30,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a896251 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:30, skipping insertion in model container [2024-02-02 09:17:30,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:29" (1/2) ... [2024-02-02 09:17:30,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@180baa75 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:30, skipping insertion in model container [2024-02-02 09:17:30,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:30" (2/2) ... [2024-02-02 09:17:30,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a896251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:30, skipping insertion in model container [2024-02-02 09:17:30,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:30" (2/2) ... [2024-02-02 09:17:30,927 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:17:30,964 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:17:30,965 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] (((0 <= t) && (t <= 1)) && ((unsigned long )arg == 0UL)) && (t == 0 || t == 1) [2024-02-02 09:17:30,965 INFO L101 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-02-02 09:17:30,965 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L689] (glob1 == 0) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:30,966 INFO L101 nessWitnessExtractor]: Location invariant before [L19-L19] (glob1 == 0) && (glob1 == 0) [2024-02-02 09:17:30,966 INFO L101 nessWitnessExtractor]: Location invariant before [L701-L701] glob1 == 0 [2024-02-02 09:17:30,966 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] ((((((0 <= glob1) && (0 <= t)) && (glob1 <= 1)) && (t <= 1)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 1)) && (t == 0 || t == 1) [2024-02-02 09:17:30,966 INFO L101 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-02-02 09:17:30,966 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] ((((0 <= t) && (t <= 1)) && (glob1 == 0)) && ((unsigned long )arg == 0UL)) && (t == 0 || t == 1) [2024-02-02 09:17:30,966 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (((((((-42LL + (long long )glob1) + (long long )t >= 0LL) && ((-41LL - (long long )glob1) + (long long )t >= 0LL)) && ((42LL + (long long )glob1) - (long long )t >= 0LL)) && ((43LL - (long long )glob1) - (long long )t >= 0LL)) && (glob1 == 0)) && (t == 42)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:30,966 INFO L101 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 0 [2024-02-02 09:17:30,967 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (((0 <= glob1) && (glob1 <= 1)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 1) [2024-02-02 09:17:30,967 INFO L101 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 0 [2024-02-02 09:17:30,967 INFO L101 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-02-02 09:17:31,003 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:17:31,186 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_18-first-reads_true.i[1088,1101] [2024-02-02 09:17:31,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:31,314 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:17:31,326 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_18-first-reads_true.i[1088,1101] [2024-02-02 09:17:31,327 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 [2024-02-02 09:17:31,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:31,450 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:17:31,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31 WrapperNode [2024-02-02 09:17:31,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:31,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:31,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:17:31,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:17:31,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,498 INFO L138 Inliner]: procedures = 164, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-02-02 09:17:31,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:31,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:17:31,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:17:31,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:17:31,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,531 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 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]. [2024-02-02 09:17:31,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:17:31,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:17:31,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:17:31,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:17:31,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (1/1) ... [2024-02-02 09:17:31,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:31,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:17:31,615 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) [2024-02-02 09:17:31,698 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 [2024-02-02 09:17:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:17:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:17:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:17:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:17:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:17:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:17:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:17:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:17:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:17:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-02 09:17:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-02 09:17:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:17:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:17:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:17:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:17:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:17:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:17:31,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:17:31,735 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:17:31,823 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:17:31,824 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:17:31,987 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:17:31,988 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:17:32,086 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:17:32,086 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:17:32,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:32 BoogieIcfgContainer [2024-02-02 09:17:32,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:17:32,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:17:32,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:17:32,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:17:32,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:29" (1/4) ... [2024-02-02 09:17:32,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62772ccf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:17:32, skipping insertion in model container [2024-02-02 09:17:32,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:17:30" (2/4) ... [2024-02-02 09:17:32,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62772ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:32, skipping insertion in model container [2024-02-02 09:17:32,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:31" (3/4) ... [2024-02-02 09:17:32,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62772ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:32, skipping insertion in model container [2024-02-02 09:17:32,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:32" (4/4) ... [2024-02-02 09:17:32,092 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2024-02-02 09:17:32,108 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:17:32,108 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-02-02 09:17:32,108 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:17:32,162 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-02 09:17:32,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 51 transitions, 109 flow [2024-02-02 09:17:32,211 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-02-02 09:17:32,211 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:17:32,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 50 events. 3/50 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-02-02 09:17:32,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 51 transitions, 109 flow [2024-02-02 09:17:32,216 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 48 transitions, 99 flow [2024-02-02 09:17:32,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:17:32,230 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;@4beef9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:17:32,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-02-02 09:17:32,234 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:17:32,234 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:17:32,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:32,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:32,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:17:32,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:32,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:32,239 INFO L85 PathProgramCache]: Analyzing trace with hash 7428, now seen corresponding path program 1 times [2024-02-02 09:17:32,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:32,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117533853] [2024-02-02 09:17:32,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:32,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:32,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:32,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117533853] [2024-02-02 09:17:32,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117533853] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:32,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:32,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:17:32,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753921895] [2024-02-02 09:17:32,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:32,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:32,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:32,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:32,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:32,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-02-02 09:17:32,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-02-02 09:17:32,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:32,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-02-02 09:17:32,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:32,605 INFO L124 PetriNetUnfolderBase]: 84/276 cut-off events. [2024-02-02 09:17:32,606 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:32,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 276 events. 84/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1307 event pairs, 58 based on Foata normal form. 13/271 useless extension candidates. Maximal degree in co-relation 456. Up to 161 conditions per place. [2024-02-02 09:17:32,611 INFO L140 encePairwiseOnDemand]: 40/51 looper letters, 27 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2024-02-02 09:17:32,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 173 flow [2024-02-02 09:17:32,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:32,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:32,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-02-02 09:17:32,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6862745098039216 [2024-02-02 09:17:32,624 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 99 flow. Second operand 3 states and 105 transitions. [2024-02-02 09:17:32,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 173 flow [2024-02-02 09:17:32,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:17:32,631 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 126 flow [2024-02-02 09:17:32,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=50, PETRI_TRANSITIONS=47} [2024-02-02 09:17:32,637 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-02-02 09:17:32,637 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 126 flow [2024-02-02 09:17:32,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-02-02 09:17:32,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:32,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:17:32,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:17:32,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:32,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:32,641 INFO L85 PathProgramCache]: Analyzing trace with hash 7145331, now seen corresponding path program 1 times [2024-02-02 09:17:32,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:32,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020546902] [2024-02-02 09:17:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:32,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:32,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:32,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:32,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020546902] [2024-02-02 09:17:32,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020546902] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:32,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:32,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:32,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672804026] [2024-02-02 09:17:32,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:32,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:32,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:32,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 51 [2024-02-02 09:17:32,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-02-02 09:17:32,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:32,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 51 [2024-02-02 09:17:32,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:32,917 INFO L124 PetriNetUnfolderBase]: 96/279 cut-off events. [2024-02-02 09:17:32,917 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-02-02 09:17:32,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 279 events. 96/279 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1272 event pairs, 50 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 565. Up to 139 conditions per place. [2024-02-02 09:17:32,924 INFO L140 encePairwiseOnDemand]: 41/51 looper letters, 33 selfloop transitions, 12 changer transitions 1/61 dead transitions. [2024-02-02 09:17:32,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 61 transitions, 256 flow [2024-02-02 09:17:32,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:32,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-02-02 09:17:32,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5450980392156862 [2024-02-02 09:17:32,935 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 126 flow. Second operand 5 states and 139 transitions. [2024-02-02 09:17:32,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 61 transitions, 256 flow [2024-02-02 09:17:32,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 61 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:32,938 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 142 flow [2024-02-02 09:17:32,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2024-02-02 09:17:32,939 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-02-02 09:17:32,939 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 142 flow [2024-02-02 09:17:32,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-02-02 09:17:32,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:32,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:32,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:17:32,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:32,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:32,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1843996500, now seen corresponding path program 1 times [2024-02-02 09:17:32,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:32,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265087144] [2024-02-02 09:17:32,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:32,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:33,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:33,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265087144] [2024-02-02 09:17:33,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265087144] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:33,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:33,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:33,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088215926] [2024-02-02 09:17:33,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:33,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:33,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:33,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:33,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:33,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 51 [2024-02-02 09:17:33,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-02-02 09:17:33,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:33,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 51 [2024-02-02 09:17:33,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:33,152 INFO L124 PetriNetUnfolderBase]: 69/249 cut-off events. [2024-02-02 09:17:33,152 INFO L125 PetriNetUnfolderBase]: For 83/92 co-relation queries the response was YES. [2024-02-02 09:17:33,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 249 events. 69/249 cut-off events. For 83/92 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1184 event pairs, 29 based on Foata normal form. 7/237 useless extension candidates. Maximal degree in co-relation 481. Up to 145 conditions per place. [2024-02-02 09:17:33,154 INFO L140 encePairwiseOnDemand]: 47/51 looper letters, 28 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-02-02 09:17:33,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 216 flow [2024-02-02 09:17:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:33,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-02-02 09:17:33,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6421568627450981 [2024-02-02 09:17:33,155 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 142 flow. Second operand 4 states and 131 transitions. [2024-02-02 09:17:33,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 216 flow [2024-02-02 09:17:33,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-02 09:17:33,157 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 142 flow [2024-02-02 09:17:33,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2024-02-02 09:17:33,158 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2024-02-02 09:17:33,158 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 142 flow [2024-02-02 09:17:33,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-02-02 09:17:33,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:33,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:33,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:17:33,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:33,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:33,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2081853911, now seen corresponding path program 1 times [2024-02-02 09:17:33,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:33,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199035681] [2024-02-02 09:17:33,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:33,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:33,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:33,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:33,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199035681] [2024-02-02 09:17:33,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199035681] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:33,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:33,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:17:33,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563563639] [2024-02-02 09:17:33,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:33,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:33,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:33,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:33,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 51 [2024-02-02 09:17:33,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-02-02 09:17:33,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:33,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 51 [2024-02-02 09:17:33,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:33,296 INFO L124 PetriNetUnfolderBase]: 115/346 cut-off events. [2024-02-02 09:17:33,296 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-02-02 09:17:33,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 346 events. 115/346 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1705 event pairs, 11 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 723. Up to 161 conditions per place. [2024-02-02 09:17:33,298 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 37 selfloop transitions, 10 changer transitions 0/58 dead transitions. [2024-02-02 09:17:33,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 274 flow [2024-02-02 09:17:33,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:33,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-02-02 09:17:33,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5441176470588235 [2024-02-02 09:17:33,299 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 142 flow. Second operand 4 states and 111 transitions. [2024-02-02 09:17:33,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 274 flow [2024-02-02 09:17:33,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:33,301 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 182 flow [2024-02-02 09:17:33,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2024-02-02 09:17:33,302 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-02-02 09:17:33,302 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 182 flow [2024-02-02 09:17:33,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-02-02 09:17:33,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:33,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:33,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:17:33,302 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:33,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:33,303 INFO L85 PathProgramCache]: Analyzing trace with hash -793143046, now seen corresponding path program 1 times [2024-02-02 09:17:33,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:33,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666183081] [2024-02-02 09:17:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:33,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:33,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:33,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:33,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666183081] [2024-02-02 09:17:33,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666183081] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:33,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:33,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:33,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117869343] [2024-02-02 09:17:33,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:33,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:33,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:33,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:33,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:33,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 51 [2024-02-02 09:17:33,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-02-02 09:17:33,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:33,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 51 [2024-02-02 09:17:33,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:33,561 INFO L124 PetriNetUnfolderBase]: 129/352 cut-off events. [2024-02-02 09:17:33,561 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-02-02 09:17:33,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 352 events. 129/352 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1671 event pairs, 11 based on Foata normal form. 8/352 useless extension candidates. Maximal degree in co-relation 876. Up to 176 conditions per place. [2024-02-02 09:17:33,564 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 45 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2024-02-02 09:17:33,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 64 transitions, 352 flow [2024-02-02 09:17:33,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:33,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-02-02 09:17:33,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2024-02-02 09:17:33,581 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 182 flow. Second operand 5 states and 120 transitions. [2024-02-02 09:17:33,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 64 transitions, 352 flow [2024-02-02 09:17:33,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 64 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:33,583 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 188 flow [2024-02-02 09:17:33,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-02-02 09:17:33,584 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2024-02-02 09:17:33,584 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 188 flow [2024-02-02 09:17:33,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-02-02 09:17:33,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:33,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:33,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:17:33,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:33,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:33,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1182369618, now seen corresponding path program 1 times [2024-02-02 09:17:33,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:33,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755511745] [2024-02-02 09:17:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:33,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:33,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:33,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755511745] [2024-02-02 09:17:33,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755511745] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:33,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:33,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112498844] [2024-02-02 09:17:33,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:33,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:33,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:33,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 51 [2024-02-02 09:17:33,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-02-02 09:17:33,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:33,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 51 [2024-02-02 09:17:33,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:33,751 INFO L124 PetriNetUnfolderBase]: 88/281 cut-off events. [2024-02-02 09:17:33,751 INFO L125 PetriNetUnfolderBase]: For 210/212 co-relation queries the response was YES. [2024-02-02 09:17:33,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 281 events. 88/281 cut-off events. For 210/212 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1287 event pairs, 7 based on Foata normal form. 12/293 useless extension candidates. Maximal degree in co-relation 648. Up to 151 conditions per place. [2024-02-02 09:17:33,753 INFO L140 encePairwiseOnDemand]: 45/51 looper letters, 34 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2024-02-02 09:17:33,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 260 flow [2024-02-02 09:17:33,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:33,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-02-02 09:17:33,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2024-02-02 09:17:33,754 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 188 flow. Second operand 4 states and 124 transitions. [2024-02-02 09:17:33,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 260 flow [2024-02-02 09:17:33,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 51 transitions, 231 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-02-02 09:17:33,759 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 131 flow [2024-02-02 09:17:33,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2024-02-02 09:17:33,761 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2024-02-02 09:17:33,761 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 131 flow [2024-02-02 09:17:33,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-02-02 09:17:33,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:33,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:33,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:17:33,762 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:33,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1182370643, now seen corresponding path program 1 times [2024-02-02 09:17:33,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:33,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797921459] [2024-02-02 09:17:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:33,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:33,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797921459] [2024-02-02 09:17:33,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797921459] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:33,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:33,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:33,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449617930] [2024-02-02 09:17:33,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:33,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:33,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:33,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:33,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:33,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 51 [2024-02-02 09:17:33,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-02-02 09:17:33,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:33,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 51 [2024-02-02 09:17:33,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:33,974 INFO L124 PetriNetUnfolderBase]: 138/367 cut-off events. [2024-02-02 09:17:33,975 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-02-02 09:17:33,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 367 events. 138/367 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1704 event pairs, 11 based on Foata normal form. 8/355 useless extension candidates. Maximal degree in co-relation 843. Up to 177 conditions per place. [2024-02-02 09:17:33,976 INFO L140 encePairwiseOnDemand]: 43/51 looper letters, 37 selfloop transitions, 6 changer transitions 12/61 dead transitions. [2024-02-02 09:17:33,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 61 transitions, 301 flow [2024-02-02 09:17:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-02-02 09:17:33,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4549019607843137 [2024-02-02 09:17:33,977 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 131 flow. Second operand 5 states and 116 transitions. [2024-02-02 09:17:33,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 61 transitions, 301 flow [2024-02-02 09:17:33,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:33,979 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 146 flow [2024-02-02 09:17:33,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=146, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2024-02-02 09:17:33,979 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-02-02 09:17:33,980 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 146 flow [2024-02-02 09:17:33,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-02-02 09:17:33,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:33,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:33,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:17:33,980 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:33,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2001247236, now seen corresponding path program 1 times [2024-02-02 09:17:33,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:33,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606129355] [2024-02-02 09:17:33,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:33,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:34,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:34,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606129355] [2024-02-02 09:17:34,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606129355] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:34,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:34,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:34,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156904590] [2024-02-02 09:17:34,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:34,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:34,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:34,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:34,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 51 [2024-02-02 09:17:34,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-02-02 09:17:34,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:34,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 51 [2024-02-02 09:17:34,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:34,200 INFO L124 PetriNetUnfolderBase]: 87/256 cut-off events. [2024-02-02 09:17:34,200 INFO L125 PetriNetUnfolderBase]: For 193/199 co-relation queries the response was YES. [2024-02-02 09:17:34,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 256 events. 87/256 cut-off events. For 193/199 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1068 event pairs, 7 based on Foata normal form. 10/266 useless extension candidates. Maximal degree in co-relation 624. Up to 160 conditions per place. [2024-02-02 09:17:34,201 INFO L140 encePairwiseOnDemand]: 46/51 looper letters, 38 selfloop transitions, 6 changer transitions 0/53 dead transitions. [2024-02-02 09:17:34,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 272 flow [2024-02-02 09:17:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:34,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-02-02 09:17:34,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5215686274509804 [2024-02-02 09:17:34,203 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 146 flow. Second operand 5 states and 133 transitions. [2024-02-02 09:17:34,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 272 flow [2024-02-02 09:17:34,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 252 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-02-02 09:17:34,205 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 134 flow [2024-02-02 09:17:34,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2024-02-02 09:17:34,207 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-02-02 09:17:34,207 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 134 flow [2024-02-02 09:17:34,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-02-02 09:17:34,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:34,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:34,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-02 09:17:34,208 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:34,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:34,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1909121900, now seen corresponding path program 1 times [2024-02-02 09:17:34,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:34,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138086523] [2024-02-02 09:17:34,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:34,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:34,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:34,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138086523] [2024-02-02 09:17:34,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138086523] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:34,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:34,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-02 09:17:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381395807] [2024-02-02 09:17:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:34,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-02 09:17:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-02 09:17:34,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-02 09:17:34,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 51 [2024-02-02 09:17:34,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-02-02 09:17:34,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:34,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 51 [2024-02-02 09:17:34,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:34,451 INFO L124 PetriNetUnfolderBase]: 82/233 cut-off events. [2024-02-02 09:17:34,452 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-02-02 09:17:34,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 233 events. 82/233 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 902 event pairs, 7 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 572. Up to 75 conditions per place. [2024-02-02 09:17:34,452 INFO L140 encePairwiseOnDemand]: 45/51 looper letters, 31 selfloop transitions, 5 changer transitions 18/60 dead transitions. [2024-02-02 09:17:34,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 60 transitions, 310 flow [2024-02-02 09:17:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-02 09:17:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-02 09:17:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-02-02 09:17:34,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4117647058823529 [2024-02-02 09:17:34,453 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 134 flow. Second operand 6 states and 126 transitions. [2024-02-02 09:17:34,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 60 transitions, 310 flow [2024-02-02 09:17:34,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 290 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-02-02 09:17:34,455 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 106 flow [2024-02-02 09:17:34,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=106, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2024-02-02 09:17:34,456 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-02-02 09:17:34,456 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 106 flow [2024-02-02 09:17:34,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-02-02 09:17:34,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:34,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:34,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-02 09:17:34,456 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 20 more)] === [2024-02-02 09:17:34,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:34,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1924765915, now seen corresponding path program 1 times [2024-02-02 09:17:34,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:34,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945153551] [2024-02-02 09:17:34,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:34,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:34,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:34,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:34,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945153551] [2024-02-02 09:17:34,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945153551] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:34,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:34,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992487847] [2024-02-02 09:17:34,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:34,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:34,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:34,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:34,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:34,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 51 [2024-02-02 09:17:34,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-02-02 09:17:34,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:34,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 51 [2024-02-02 09:17:34,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:34,522 INFO L124 PetriNetUnfolderBase]: 13/67 cut-off events. [2024-02-02 09:17:34,522 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-02-02 09:17:34,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 67 events. 13/67 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 122 event pairs, 3 based on Foata normal form. 7/69 useless extension candidates. Maximal degree in co-relation 131. Up to 30 conditions per place. [2024-02-02 09:17:34,522 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2024-02-02 09:17:34,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 132 flow [2024-02-02 09:17:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-02-02 09:17:34,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2024-02-02 09:17:34,523 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 106 flow. Second operand 3 states and 108 transitions. [2024-02-02 09:17:34,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 132 flow [2024-02-02 09:17:34,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 101 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-02-02 09:17:34,524 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2024-02-02 09:17:34,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2024-02-02 09:17:34,525 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -16 predicate places. [2024-02-02 09:17:34,525 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2024-02-02 09:17:34,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-02-02 09:17:34,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (21 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (18 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 23 remaining) [2024-02-02 09:17:34,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 23 remaining) [2024-02-02 09:17:34,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 23 remaining) [2024-02-02 09:17:34,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-02 09:17:34,530 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:34,533 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:17:34,533 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:17:34,536 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-02-02 09:17:34,536 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-02-02 09:17:34,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:17:34 BasicIcfg [2024-02-02 09:17:34,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:17:34,537 INFO L158 Benchmark]: Toolchain (without parser) took 3619.98ms. Allocated memory was 174.1MB in the beginning and 232.8MB in the end (delta: 58.7MB). Free memory was 98.3MB in the beginning and 93.5MB in the end (delta: 4.8MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2024-02-02 09:17:34,537 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 174.1MB. Free memory was 136.0MB in the beginning and 135.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:34,538 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 174.1MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:34,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.73ms. Allocated memory is still 174.1MB. Free memory was 98.1MB in the beginning and 129.8MB in the end (delta: -31.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-02-02 09:17:34,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.85ms. Allocated memory is still 174.1MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:34,539 INFO L158 Benchmark]: Boogie Preprocessor took 61.87ms. Allocated memory is still 174.1MB. Free memory was 127.7MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:34,539 INFO L158 Benchmark]: RCFGBuilder took 524.03ms. Allocated memory is still 174.1MB. Free memory was 125.6MB in the beginning and 100.0MB in the end (delta: 25.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-02-02 09:17:34,540 INFO L158 Benchmark]: TraceAbstraction took 2449.01ms. Allocated memory was 174.1MB in the beginning and 232.8MB in the end (delta: 58.7MB). Free memory was 99.2MB in the beginning and 93.5MB in the end (delta: 5.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-02-02 09:17:34,541 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 174.1MB. Free memory was 136.0MB in the beginning and 135.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 174.1MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.73ms. Allocated memory is still 174.1MB. Free memory was 98.1MB in the beginning and 129.8MB in the end (delta: -31.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.85ms. Allocated memory is still 174.1MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.87ms. Allocated memory is still 174.1MB. Free memory was 127.7MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 524.03ms. Allocated memory is still 174.1MB. Free memory was 125.6MB in the beginning and 100.0MB in the end (delta: 25.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2449.01ms. Allocated memory was 174.1MB in the beginning and 232.8MB in the end (delta: 58.7MB). Free memory was 99.2MB in the beginning and 93.5MB in the end (delta: 5.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: 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: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: 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: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 685]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - 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: 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: 692]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 73 locations, 23 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 606 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 429 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 922 IncrementalHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 42 mSDtfsCounter, 922 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=5, InterpolantAutomatonStates: 44, 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, 0.7s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 710 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-02 09:17:34,588 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 Result: TRUE