./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 3d25acf6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_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-3d25acf-m [2024-01-30 14:21:23,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:21:23,888 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:21:23,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:21:23,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:21:23,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:21:23,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:21:23,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:21:23,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:21:23,919 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:21:23,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:21:23,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:21:23,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:21:23,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:21:23,921 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:21:23,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:21:23,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:21:23,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:21:23,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:21:23,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:21:23,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:21:23,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:21:23,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:21:23,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:21:23,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:21:23,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:21:23,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:21:23,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:21:23,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:21:23,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:21:23,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:21:23,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:21:23,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:23,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:21:23,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:21:23,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:21:23,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:21:23,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:21:23,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:21:23,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:21:23,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:21:23,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:21:23,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:21:23,927 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:21:24,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:21:24,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:21:24,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:21:24,177 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:21:24,177 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:21:24,178 INFO L431 ainManager$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 [2024-01-30 14:21:24,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:21:24,284 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:21:24,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2024-01-30 14:21:25,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:21:25,478 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:21:25,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2024-01-30 14:21:25,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18a0c594/53a1298fad65402db187ef5a21884962/FLAG84f67ba1d [2024-01-30 14:21:25,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18a0c594/53a1298fad65402db187ef5a21884962 [2024-01-30 14:21:25,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:21:25,511 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:21:25,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:25,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:21:25,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:21:25,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:24" (1/2) ... [2024-01-30 14:21:25,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144cefb3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:25, skipping insertion in model container [2024-01-30 14:21:25,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:24" (1/2) ... [2024-01-30 14:21:25,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@325961ba and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:25, skipping insertion in model container [2024-01-30 14:21:25,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:25" (2/2) ... [2024-01-30 14:21:25,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144cefb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:25, skipping insertion in model container [2024-01-30 14:21:25,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:25" (2/2) ... [2024-01-30 14:21:25,519 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:21:25,562 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:21:25,563 INFO L98 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) [2024-01-30 14:21:25,563 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] glob1 == 0 [2024-01-30 14:21:25,563 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (((0 <= glob1) && (glob1 <= 1)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 1) [2024-01-30 14:21:25,563 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 0 [2024-01-30 14:21:25,564 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] ((((0 <= t) && (t <= 1)) && (glob1 == 0)) && ((unsigned long )arg == 0UL)) && (t == 0 || t == 1) [2024-01-30 14:21:25,564 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] (glob1 == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:25,564 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 0 [2024-01-30 14:21:25,564 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-01-30 14:21:25,564 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-30 14:21:25,564 INFO L98 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) [2024-01-30 14:21:25,565 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-30 14:21:25,565 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (((0 <= t) && (t <= 1)) && ((unsigned long )arg == 0UL)) && (t == 0 || t == 1) [2024-01-30 14:21:25,565 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (glob1 == 0) && (glob1 == 0) [2024-01-30 14:21:25,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:21:25,734 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] [2024-01-30 14:21:25,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:25,989 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:21:25,998 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] [2024-01-30 14:21:25,999 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 [2024-01-30 14:21:26,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:26,103 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:21:26,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26 WrapperNode [2024-01-30 14:21:26,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:26,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:26,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:21:26,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:21:26,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,149 INFO L138 Inliner]: procedures = 164, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-01-30 14:21:26,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:26,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:21:26,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:21:26,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:21:26,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,189 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]. [2024-01-30 14:21:26,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:21:26,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:21:26,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:21:26,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:21:26,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (1/1) ... [2024-01-30 14:21:26,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:26,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:21:26,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-30 14:21:26,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:21:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:21:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:21:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:21:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:21:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:21:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:21:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:21:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:21:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:21:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-30 14:21:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-30 14:21:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:21:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:21:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:21:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:21:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:21:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:21:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:21:26,268 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:21:26,357 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:21:26,359 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:21:26,518 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:21:26,519 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:21:26,586 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:21:26,586 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:21:26,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:26 BoogieIcfgContainer [2024-01-30 14:21:26,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:21:26,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:21:26,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:21:26,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:21:26,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:24" (1/4) ... [2024-01-30 14:21:26,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e6a365 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:26, skipping insertion in model container [2024-01-30 14:21:26,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:21:25" (2/4) ... [2024-01-30 14:21:26,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e6a365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:26, skipping insertion in model container [2024-01-30 14:21:26,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:26" (3/4) ... [2024-01-30 14:21:26,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e6a365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:26, skipping insertion in model container [2024-01-30 14:21:26,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:26" (4/4) ... [2024-01-30 14:21:26,593 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2024-01-30 14:21:26,605 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:21:26,605 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-01-30 14:21:26,605 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:21:26,664 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-30 14:21:26,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 51 transitions, 109 flow [2024-01-30 14:21:26,720 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-01-30 14:21:26,726 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:21:26,728 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. [2024-01-30 14:21:26,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 51 transitions, 109 flow [2024-01-30 14:21:26,732 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 48 transitions, 99 flow [2024-01-30 14:21:26,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:21:26,749 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;@c87e23c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:21:26,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-01-30 14:21:26,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:21:26,754 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:21:26,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:26,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:26,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:21:26,755 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)] === [2024-01-30 14:21:26,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:26,759 INFO L85 PathProgramCache]: Analyzing trace with hash 7428, now seen corresponding path program 1 times [2024-01-30 14:21:26,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:26,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222660208] [2024-01-30 14:21:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:26,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:26,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:26,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222660208] [2024-01-30 14:21:26,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222660208] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:26,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:26,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:21:26,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666181167] [2024-01-30 14:21:26,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:26,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:26,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:26,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:26,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:26,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-01-30 14:21:26,988 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) [2024-01-30 14:21:26,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:26,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-01-30 14:21:26,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:27,096 INFO L124 PetriNetUnfolderBase]: 84/276 cut-off events. [2024-01-30 14:21:27,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:27,099 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. [2024-01-30 14:21:27,103 INFO L140 encePairwiseOnDemand]: 40/51 looper letters, 27 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2024-01-30 14:21:27,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 173 flow [2024-01-30 14:21:27,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:27,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-01-30 14:21:27,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6862745098039216 [2024-01-30 14:21:27,116 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 99 flow. Second operand 3 states and 105 transitions. [2024-01-30 14:21:27,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 173 flow [2024-01-30 14:21:27,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:27,124 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 126 flow [2024-01-30 14:21:27,126 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} [2024-01-30 14:21:27,131 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-01-30 14:21:27,131 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 126 flow [2024-01-30 14:21:27,132 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) [2024-01-30 14:21:27,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:27,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:21:27,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:21:27,133 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)] === [2024-01-30 14:21:27,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:27,136 INFO L85 PathProgramCache]: Analyzing trace with hash 7145331, now seen corresponding path program 1 times [2024-01-30 14:21:27,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:27,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906359278] [2024-01-30 14:21:27,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:27,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:27,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906359278] [2024-01-30 14:21:27,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906359278] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:27,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:27,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:27,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550066563] [2024-01-30 14:21:27,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:27,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:27,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:27,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:27,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:27,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 51 [2024-01-30 14:21:27,278 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) [2024-01-30 14:21:27,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:27,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 51 [2024-01-30 14:21:27,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:27,422 INFO L124 PetriNetUnfolderBase]: 96/279 cut-off events. [2024-01-30 14:21:27,422 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-01-30 14:21:27,425 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. [2024-01-30 14:21:27,429 INFO L140 encePairwiseOnDemand]: 41/51 looper letters, 33 selfloop transitions, 12 changer transitions 1/61 dead transitions. [2024-01-30 14:21:27,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 61 transitions, 256 flow [2024-01-30 14:21:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-01-30 14:21:27,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5450980392156862 [2024-01-30 14:21:27,438 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 126 flow. Second operand 5 states and 139 transitions. [2024-01-30 14:21:27,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 61 transitions, 256 flow [2024-01-30 14:21:27,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 61 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:27,441 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 142 flow [2024-01-30 14:21:27,441 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} [2024-01-30 14:21:27,442 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-01-30 14:21:27,442 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 142 flow [2024-01-30 14:21:27,442 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) [2024-01-30 14:21:27,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:27,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:27,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:21:27,443 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)] === [2024-01-30 14:21:27,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:27,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1843996500, now seen corresponding path program 1 times [2024-01-30 14:21:27,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:27,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548890828] [2024-01-30 14:21:27,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:27,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:27,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:27,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:27,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548890828] [2024-01-30 14:21:27,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548890828] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:27,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:27,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:27,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913477377] [2024-01-30 14:21:27,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:27,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:27,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:27,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:27,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:27,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 51 [2024-01-30 14:21:27,610 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) [2024-01-30 14:21:27,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:27,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 51 [2024-01-30 14:21:27,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:27,663 INFO L124 PetriNetUnfolderBase]: 69/249 cut-off events. [2024-01-30 14:21:27,663 INFO L125 PetriNetUnfolderBase]: For 83/92 co-relation queries the response was YES. [2024-01-30 14:21:27,664 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. [2024-01-30 14:21:27,665 INFO L140 encePairwiseOnDemand]: 47/51 looper letters, 28 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-30 14:21:27,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 216 flow [2024-01-30 14:21:27,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-01-30 14:21:27,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6421568627450981 [2024-01-30 14:21:27,669 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 142 flow. Second operand 4 states and 131 transitions. [2024-01-30 14:21:27,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 216 flow [2024-01-30 14:21:27,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-30 14:21:27,672 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 142 flow [2024-01-30 14:21:27,672 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} [2024-01-30 14:21:27,673 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2024-01-30 14:21:27,673 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 142 flow [2024-01-30 14:21:27,673 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) [2024-01-30 14:21:27,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:27,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:27,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:21:27,675 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)] === [2024-01-30 14:21:27,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2081853911, now seen corresponding path program 1 times [2024-01-30 14:21:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:27,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006880925] [2024-01-30 14:21:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:27,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:27,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:27,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006880925] [2024-01-30 14:21:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006880925] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:27,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:27,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126086171] [2024-01-30 14:21:27,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:27,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:27,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:27,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:27,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:27,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 51 [2024-01-30 14:21:27,746 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) [2024-01-30 14:21:27,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:27,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 51 [2024-01-30 14:21:27,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:27,808 INFO L124 PetriNetUnfolderBase]: 115/346 cut-off events. [2024-01-30 14:21:27,808 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-01-30 14:21:27,809 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. [2024-01-30 14:21:27,810 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 37 selfloop transitions, 10 changer transitions 0/58 dead transitions. [2024-01-30 14:21:27,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 274 flow [2024-01-30 14:21:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:27,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-01-30 14:21:27,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5441176470588235 [2024-01-30 14:21:27,811 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 142 flow. Second operand 4 states and 111 transitions. [2024-01-30 14:21:27,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 274 flow [2024-01-30 14:21:27,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:27,813 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 182 flow [2024-01-30 14:21:27,813 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} [2024-01-30 14:21:27,814 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-01-30 14:21:27,814 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 182 flow [2024-01-30 14:21:27,814 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) [2024-01-30 14:21:27,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:27,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:27,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:21:27,815 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)] === [2024-01-30 14:21:27,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:27,815 INFO L85 PathProgramCache]: Analyzing trace with hash -793143046, now seen corresponding path program 1 times [2024-01-30 14:21:27,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615436484] [2024-01-30 14:21:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:27,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:27,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:27,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615436484] [2024-01-30 14:21:27,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615436484] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:27,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:27,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:27,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063972794] [2024-01-30 14:21:27,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:27,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:27,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:27,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:27,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:27,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 51 [2024-01-30 14:21:27,917 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) [2024-01-30 14:21:27,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:27,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 51 [2024-01-30 14:21:27,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:28,017 INFO L124 PetriNetUnfolderBase]: 129/352 cut-off events. [2024-01-30 14:21:28,018 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-01-30 14:21:28,019 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. [2024-01-30 14:21:28,020 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 45 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2024-01-30 14:21:28,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 64 transitions, 352 flow [2024-01-30 14:21:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-01-30 14:21:28,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2024-01-30 14:21:28,022 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 182 flow. Second operand 5 states and 120 transitions. [2024-01-30 14:21:28,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 64 transitions, 352 flow [2024-01-30 14:21:28,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 64 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:28,024 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 188 flow [2024-01-30 14:21:28,024 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} [2024-01-30 14:21:28,024 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2024-01-30 14:21:28,025 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 188 flow [2024-01-30 14:21:28,025 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) [2024-01-30 14:21:28,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:28,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:28,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:21:28,025 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)] === [2024-01-30 14:21:28,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1182369618, now seen corresponding path program 1 times [2024-01-30 14:21:28,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:28,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623165550] [2024-01-30 14:21:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:28,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:28,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:28,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623165550] [2024-01-30 14:21:28,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623165550] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:28,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:28,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:28,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905264128] [2024-01-30 14:21:28,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:28,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:28,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:28,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:28,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 51 [2024-01-30 14:21:28,104 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) [2024-01-30 14:21:28,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:28,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 51 [2024-01-30 14:21:28,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:28,167 INFO L124 PetriNetUnfolderBase]: 88/281 cut-off events. [2024-01-30 14:21:28,167 INFO L125 PetriNetUnfolderBase]: For 210/212 co-relation queries the response was YES. [2024-01-30 14:21:28,168 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. [2024-01-30 14:21:28,168 INFO L140 encePairwiseOnDemand]: 45/51 looper letters, 34 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2024-01-30 14:21:28,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 260 flow [2024-01-30 14:21:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:28,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-01-30 14:21:28,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2024-01-30 14:21:28,169 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 188 flow. Second operand 4 states and 124 transitions. [2024-01-30 14:21:28,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 260 flow [2024-01-30 14:21:28,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 51 transitions, 231 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-01-30 14:21:28,171 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 131 flow [2024-01-30 14:21:28,171 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} [2024-01-30 14:21:28,172 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2024-01-30 14:21:28,172 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 131 flow [2024-01-30 14:21:28,172 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) [2024-01-30 14:21:28,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:28,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:28,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:21:28,172 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)] === [2024-01-30 14:21:28,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:28,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1182370643, now seen corresponding path program 1 times [2024-01-30 14:21:28,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:28,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327080267] [2024-01-30 14:21:28,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:28,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:28,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:28,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327080267] [2024-01-30 14:21:28,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327080267] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:28,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:28,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312506914] [2024-01-30 14:21:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:28,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:28,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:28,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 51 [2024-01-30 14:21:28,278 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) [2024-01-30 14:21:28,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:28,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 51 [2024-01-30 14:21:28,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:28,349 INFO L124 PetriNetUnfolderBase]: 138/367 cut-off events. [2024-01-30 14:21:28,350 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-01-30 14:21:28,350 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. [2024-01-30 14:21:28,351 INFO L140 encePairwiseOnDemand]: 43/51 looper letters, 37 selfloop transitions, 6 changer transitions 12/61 dead transitions. [2024-01-30 14:21:28,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 61 transitions, 301 flow [2024-01-30 14:21:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-01-30 14:21:28,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4549019607843137 [2024-01-30 14:21:28,352 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 131 flow. Second operand 5 states and 116 transitions. [2024-01-30 14:21:28,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 61 transitions, 301 flow [2024-01-30 14:21:28,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:28,354 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 146 flow [2024-01-30 14:21:28,354 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} [2024-01-30 14:21:28,354 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-01-30 14:21:28,354 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 146 flow [2024-01-30 14:21:28,354 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) [2024-01-30 14:21:28,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:28,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:28,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:21:28,355 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)] === [2024-01-30 14:21:28,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:28,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2001247236, now seen corresponding path program 1 times [2024-01-30 14:21:28,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:28,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403157174] [2024-01-30 14:21:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:28,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:28,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:28,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403157174] [2024-01-30 14:21:28,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403157174] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:28,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:28,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:28,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147136802] [2024-01-30 14:21:28,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:28,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:28,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:28,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:28,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:28,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 51 [2024-01-30 14:21:28,495 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) [2024-01-30 14:21:28,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:28,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 51 [2024-01-30 14:21:28,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:28,565 INFO L124 PetriNetUnfolderBase]: 87/256 cut-off events. [2024-01-30 14:21:28,565 INFO L125 PetriNetUnfolderBase]: For 193/199 co-relation queries the response was YES. [2024-01-30 14:21:28,566 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. [2024-01-30 14:21:28,566 INFO L140 encePairwiseOnDemand]: 46/51 looper letters, 38 selfloop transitions, 6 changer transitions 0/53 dead transitions. [2024-01-30 14:21:28,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 272 flow [2024-01-30 14:21:28,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-01-30 14:21:28,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5215686274509804 [2024-01-30 14:21:28,568 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 146 flow. Second operand 5 states and 133 transitions. [2024-01-30 14:21:28,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 272 flow [2024-01-30 14:21:28,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 252 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-30 14:21:28,570 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 134 flow [2024-01-30 14:21:28,570 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} [2024-01-30 14:21:28,572 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-01-30 14:21:28,572 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 134 flow [2024-01-30 14:21:28,572 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) [2024-01-30 14:21:28,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:28,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:28,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-30 14:21:28,573 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)] === [2024-01-30 14:21:28,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:28,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1909121900, now seen corresponding path program 1 times [2024-01-30 14:21:28,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:28,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981722584] [2024-01-30 14:21:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:28,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:28,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:28,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981722584] [2024-01-30 14:21:28,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981722584] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:28,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:28,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-30 14:21:28,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238411524] [2024-01-30 14:21:28,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:28,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-30 14:21:28,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:28,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-30 14:21:28,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-30 14:21:28,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 51 [2024-01-30 14:21:28,709 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) [2024-01-30 14:21:28,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:28,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 51 [2024-01-30 14:21:28,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:28,788 INFO L124 PetriNetUnfolderBase]: 82/233 cut-off events. [2024-01-30 14:21:28,788 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-01-30 14:21:28,789 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. [2024-01-30 14:21:28,789 INFO L140 encePairwiseOnDemand]: 45/51 looper letters, 31 selfloop transitions, 5 changer transitions 18/60 dead transitions. [2024-01-30 14:21:28,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 60 transitions, 310 flow [2024-01-30 14:21:28,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-30 14:21:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-30 14:21:28,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-01-30 14:21:28,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4117647058823529 [2024-01-30 14:21:28,790 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 134 flow. Second operand 6 states and 126 transitions. [2024-01-30 14:21:28,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 60 transitions, 310 flow [2024-01-30 14:21:28,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 290 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-01-30 14:21:28,791 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 106 flow [2024-01-30 14:21:28,792 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} [2024-01-30 14:21:28,793 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-01-30 14:21:28,793 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 106 flow [2024-01-30 14:21:28,793 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) [2024-01-30 14:21:28,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:28,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:28,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-30 14:21:28,794 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)] === [2024-01-30 14:21:28,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:28,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1924765915, now seen corresponding path program 1 times [2024-01-30 14:21:28,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:28,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207510291] [2024-01-30 14:21:28,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:28,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:28,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:28,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207510291] [2024-01-30 14:21:28,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207510291] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:28,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:28,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:28,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127041414] [2024-01-30 14:21:28,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:28,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:28,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:28,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:28,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:28,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 51 [2024-01-30 14:21:28,849 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) [2024-01-30 14:21:28,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:28,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 51 [2024-01-30 14:21:28,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:28,871 INFO L124 PetriNetUnfolderBase]: 13/67 cut-off events. [2024-01-30 14:21:28,871 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-01-30 14:21:28,871 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. [2024-01-30 14:21:28,871 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2024-01-30 14:21:28,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 132 flow [2024-01-30 14:21:28,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:28,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-01-30 14:21:28,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2024-01-30 14:21:28,872 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 106 flow. Second operand 3 states and 108 transitions. [2024-01-30 14:21:28,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 132 flow [2024-01-30 14:21:28,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 101 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-01-30 14:21:28,873 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2024-01-30 14:21:28,873 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} [2024-01-30 14:21:28,874 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -16 predicate places. [2024-01-30 14:21:28,874 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2024-01-30 14:21:28,874 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) [2024-01-30 14:21:28,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 23 remaining) [2024-01-30 14:21:28,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (21 of 23 remaining) [2024-01-30 14:21:28,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 23 remaining) [2024-01-30 14:21:28,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (18 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 23 remaining) [2024-01-30 14:21:28,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 23 remaining) [2024-01-30 14:21:28,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 23 remaining) [2024-01-30 14:21:28,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 23 remaining) [2024-01-30 14:21:28,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 23 remaining) [2024-01-30 14:21:28,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 23 remaining) [2024-01-30 14:21:28,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 23 remaining) [2024-01-30 14:21:28,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-30 14:21:28,878 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:28,882 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:21:28,882 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:21:28,885 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-01-30 14:21:28,885 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-01-30 14:21:28,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:21:28 BasicIcfg [2024-01-30 14:21:28,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:21:28,887 INFO L158 Benchmark]: Toolchain (without parser) took 3375.41ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 117.5MB in the beginning and 117.8MB in the end (delta: -264.5kB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-01-30 14:21:28,887 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:28,887 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:28,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.86ms. Allocated memory is still 190.8MB. Free memory was 117.3MB in the beginning and 152.2MB in the end (delta: -34.9MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-01-30 14:21:28,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.47ms. Allocated memory is still 190.8MB. Free memory was 152.2MB in the beginning and 150.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:28,888 INFO L158 Benchmark]: Boogie Preprocessor took 57.06ms. Allocated memory is still 190.8MB. Free memory was 150.1MB in the beginning and 148.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:28,889 INFO L158 Benchmark]: RCFGBuilder took 378.73ms. Allocated memory is still 190.8MB. Free memory was 148.0MB in the beginning and 122.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-30 14:21:28,889 INFO L158 Benchmark]: TraceAbstraction took 2298.47ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 121.8MB in the beginning and 117.8MB in the end (delta: 4.0MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2024-01-30 14:21:28,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.86ms. Allocated memory is still 190.8MB. Free memory was 117.3MB in the beginning and 152.2MB in the end (delta: -34.9MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.47ms. Allocated memory is still 190.8MB. Free memory was 152.2MB in the beginning and 150.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.06ms. Allocated memory is still 190.8MB. Free memory was 150.1MB in the beginning and 148.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.73ms. Allocated memory is still 190.8MB. Free memory was 148.0MB in the beginning and 122.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2298.47ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 121.8MB in the beginning and 117.8MB in the end (delta: 4.0MB). Peak memory consumption was 45.8MB. 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: 2.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 606 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 429 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.5s 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, 0.6s 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! [2024-01-30 14:21:28,911 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