./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d8006e4b 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_33-traces-v-matters_true.i ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_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-d8006e4-m [2024-02-05 10:30:38,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:30:38,672 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:30:38,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:30:38,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:30:38,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:30:38,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:30:38,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:30:38,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:30:38,711 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:30:38,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:30:38,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:30:38,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:30:38,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:30:38,714 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:30:38,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:30:38,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:30:38,714 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:30:38,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:30:38,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:30:38,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:30:38,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:30:38,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:30:38,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:30:38,716 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:30:38,716 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:30:38,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:30:38,717 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:30:38,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:30:38,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:30:38,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:30:38,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:30:38,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:30:38,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:30:38,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:30:38,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:30:38,720 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:30:38,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:30:38,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:30:38,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:30:38,720 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:30:38,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:30:38,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:30:38,721 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:30:38,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:30:38,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:30:38,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:30:38,967 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:30:38,967 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:30:38,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.yml/witness.yml [2024-02-05 10:30:39,059 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:30:39,060 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:30:39,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-02-05 10:30:40,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:30:40,391 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:30:40,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-02-05 10:30:40,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6589ba6ab/0601ac4cca674db68f61c63569c2a7bb/FLAG8bfeb9f8d [2024-02-05 10:30:40,422 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6589ba6ab/0601ac4cca674db68f61c63569c2a7bb [2024-02-05 10:30:40,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:30:40,424 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:30:40,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:30:40,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:30:40,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:30:40,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:30:39" (1/2) ... [2024-02-05 10:30:40,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc29f8a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:30:40, skipping insertion in model container [2024-02-05 10:30:40,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:30:39" (1/2) ... [2024-02-05 10:30:40,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@718ff8cf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:30:40, skipping insertion in model container [2024-02-05 10:30:40,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:30:40" (2/2) ... [2024-02-05 10:30:40,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc29f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40, skipping insertion in model container [2024-02-05 10:30:40,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:30:40" (2/2) ... [2024-02-05 10:30:40,434 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:30:40,480 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:30:40,481 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-02-05 10:30:40,481 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 42) && ((unsigned long )arg == 0UL) [2024-02-05 10:30:40,481 INFO L101 nessWitnessExtractor]: Location invariant before [L699-L699] ((((0 <= g) && (g <= 42)) && (g <= 127)) && (g % 2 == 0)) && ((g == 0 || g == 2) || g == 42) [2024-02-05 10:30:40,481 INFO L101 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L697-L697] g == 0 [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L700-L700] ((((0 <= g) && (g <= 42)) && (g <= 127)) && (g % 2 == 0)) && ((g == 0 || g == 2) || g == 42) [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (((((0 <= g) && (g <= 42)) && (g <= 127)) && (g % 2 == 0)) && ((unsigned long )arg == 0UL)) && ((g == 0 || g == 2) || g == 42) [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (((((0 <= g) && (g <= 42)) && (g <= 127)) && (g % 2 == 0)) && ((unsigned long )arg == 0UL)) && ((g == 0 || g == 2) || g == 42) [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L701-L701] g == 2 [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 42) && ((unsigned long )arg == 0UL) [2024-02-05 10:30:40,482 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 42) && ((unsigned long )arg == 0UL) [2024-02-05 10:30:40,521 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:30:40,663 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_33-traces-v-matters_true.i[1093,1106] [2024-02-05 10:30:40,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:30:40,782 INFO L204 MainTranslator]: Completed pre-run [2024-02-05 10:30:40,795 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_33-traces-v-matters_true.i[1093,1106] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-05 10:30:40,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:30:40,915 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:30:40,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40 WrapperNode [2024-02-05 10:30:40,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:30:40,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:30:40,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:30:40,919 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:30:40,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:40,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:40,976 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-02-05 10:30:40,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:30:40,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:30:40,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:30:40,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:30:40,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:40,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,027 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,043 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 5, 5, 5, 1]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-02-05 10:30:41,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:30:41,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:30:41,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:30:41,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:30:41,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (1/1) ... [2024-02-05 10:30:41,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:30:41,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:30:41,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-05 10:30:41,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-05 10:30:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:30:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:30:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:30:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-05 10:30:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-05 10:30:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-05 10:30:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:30:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:30:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-05 10:30:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-05 10:30:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:30:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:30:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:30:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:30:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-05 10:30:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-05 10:30:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-05 10:30:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:30:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:30:41,154 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-05 10:30:41,282 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:30:41,284 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:30:41,520 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:30:41,520 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:30:41,619 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:30:41,619 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-05 10:30:41,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:30:41 BoogieIcfgContainer [2024-02-05 10:30:41,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:30:41,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:30:41,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:30:41,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:30:41,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:30:39" (1/4) ... [2024-02-05 10:30:41,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28864ca and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:30:41, skipping insertion in model container [2024-02-05 10:30:41,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:30:40" (2/4) ... [2024-02-05 10:30:41,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28864ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:30:41, skipping insertion in model container [2024-02-05 10:30:41,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:30:40" (3/4) ... [2024-02-05 10:30:41,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28864ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:30:41, skipping insertion in model container [2024-02-05 10:30:41,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:30:41" (4/4) ... [2024-02-05 10:30:41,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-02-05 10:30:41,641 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:30:41,642 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-02-05 10:30:41,642 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:30:41,694 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-05 10:30:41,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 112 flow [2024-02-05 10:30:41,754 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-02-05 10:30:41,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:30:41,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 1/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-02-05 10:30:41,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 54 transitions, 112 flow [2024-02-05 10:30:41,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 53 transitions, 109 flow [2024-02-05 10:30:41,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:30:41,782 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;@7200581, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:30:41,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-02-05 10:30:41,785 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:30:41,785 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:30:41,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:30:41,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:41,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:30:41,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:41,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:41,790 INFO L85 PathProgramCache]: Analyzing trace with hash 8164, now seen corresponding path program 1 times [2024-02-05 10:30:41,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:41,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161163978] [2024-02-05 10:30:41,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:41,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:41,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:41,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161163978] [2024-02-05 10:30:41,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161163978] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:41,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:41,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:30:41,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600005189] [2024-02-05 10:30:41,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:41,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:30:41,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:42,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:30:42,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:30:42,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 54 [2024-02-05 10:30:42,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:42,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:42,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 54 [2024-02-05 10:30:42,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:42,196 INFO L124 PetriNetUnfolderBase]: 115/399 cut-off events. [2024-02-05 10:30:42,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:30:42,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 399 events. 115/399 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2075 event pairs, 67 based on Foata normal form. 15/383 useless extension candidates. Maximal degree in co-relation 648. Up to 236 conditions per place. [2024-02-05 10:30:42,200 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 29 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-02-05 10:30:42,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 183 flow [2024-02-05 10:30:42,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:30:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:30:42,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-02-05 10:30:42,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-02-05 10:30:42,212 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 109 flow. Second operand 3 states and 117 transitions. [2024-02-05 10:30:42,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 183 flow [2024-02-05 10:30:42,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-05 10:30:42,217 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 125 flow [2024-02-05 10:30:42,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-02-05 10:30:42,221 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2024-02-05 10:30:42,221 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 125 flow [2024-02-05 10:30:42,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:42,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:42,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-05 10:30:42,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:30:42,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:42,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:42,223 INFO L85 PathProgramCache]: Analyzing trace with hash 243521589, now seen corresponding path program 1 times [2024-02-05 10:30:42,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:42,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075468560] [2024-02-05 10:30:42,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:42,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:42,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:42,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075468560] [2024-02-05 10:30:42,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075468560] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:42,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:42,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:30:42,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205354777] [2024-02-05 10:30:42,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:42,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:30:42,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:42,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:30:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:30:42,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 54 [2024-02-05 10:30:42,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:42,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:42,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 54 [2024-02-05 10:30:42,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:42,521 INFO L124 PetriNetUnfolderBase]: 72/313 cut-off events. [2024-02-05 10:30:42,521 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-02-05 10:30:42,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 313 events. 72/313 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1468 event pairs, 42 based on Foata normal form. 18/296 useless extension candidates. Maximal degree in co-relation 505. Up to 153 conditions per place. [2024-02-05 10:30:42,524 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 28 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-02-05 10:30:42,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 198 flow [2024-02-05 10:30:42,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions. [2024-02-05 10:30:42,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6990740740740741 [2024-02-05 10:30:42,526 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 125 flow. Second operand 4 states and 151 transitions. [2024-02-05 10:30:42,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 198 flow [2024-02-05 10:30:42,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-05 10:30:42,528 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 120 flow [2024-02-05 10:30:42,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-02-05 10:30:42,529 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2024-02-05 10:30:42,529 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 120 flow [2024-02-05 10:30:42,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:42,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:42,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:42,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:30:42,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:42,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 552177001, now seen corresponding path program 1 times [2024-02-05 10:30:42,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:42,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490067820] [2024-02-05 10:30:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:42,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:42,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:42,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490067820] [2024-02-05 10:30:42,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490067820] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:42,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:42,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-05 10:30:42,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501484712] [2024-02-05 10:30:42,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:42,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:30:42,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:42,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:30:42,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:30:42,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-02-05 10:30:42,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:42,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:42,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-02-05 10:30:42,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:42,867 INFO L124 PetriNetUnfolderBase]: 163/480 cut-off events. [2024-02-05 10:30:42,867 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-02-05 10:30:42,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 480 events. 163/480 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2441 event pairs, 81 based on Foata normal form. 4/460 useless extension candidates. Maximal degree in co-relation 887. Up to 317 conditions per place. [2024-02-05 10:30:42,870 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 40 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2024-02-05 10:30:42,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 238 flow [2024-02-05 10:30:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-02-05 10:30:42,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5509259259259259 [2024-02-05 10:30:42,871 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 120 flow. Second operand 4 states and 119 transitions. [2024-02-05 10:30:42,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 238 flow [2024-02-05 10:30:42,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:30:42,873 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 145 flow [2024-02-05 10:30:42,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=145, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2024-02-05 10:30:42,874 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2024-02-05 10:30:42,874 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 145 flow [2024-02-05 10:30:42,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:42,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:42,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:42,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-05 10:30:42,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:42,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:42,875 INFO L85 PathProgramCache]: Analyzing trace with hash 994550028, now seen corresponding path program 1 times [2024-02-05 10:30:42,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:42,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020376962] [2024-02-05 10:30:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:42,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:42,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:42,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020376962] [2024-02-05 10:30:42,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020376962] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:42,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:42,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-05 10:30:42,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928413686] [2024-02-05 10:30:42,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:42,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:30:42,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:42,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:30:42,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:30:42,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 54 [2024-02-05 10:30:42,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:42,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:42,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 54 [2024-02-05 10:30:42,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:42,999 INFO L124 PetriNetUnfolderBase]: 145/519 cut-off events. [2024-02-05 10:30:43,000 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-02-05 10:30:43,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 519 events. 145/519 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3019 event pairs, 57 based on Foata normal form. 18/499 useless extension candidates. Maximal degree in co-relation 929. Up to 225 conditions per place. [2024-02-05 10:30:43,003 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 36 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-02-05 10:30:43,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 251 flow [2024-02-05 10:30:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:30:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:30:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-02-05 10:30:43,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7654320987654321 [2024-02-05 10:30:43,005 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 145 flow. Second operand 3 states and 124 transitions. [2024-02-05 10:30:43,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 251 flow [2024-02-05 10:30:43,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:30:43,007 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 169 flow [2024-02-05 10:30:43,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-02-05 10:30:43,008 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2024-02-05 10:30:43,008 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 169 flow [2024-02-05 10:30:43,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:43,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:43,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-05 10:30:43,009 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:43,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1302985996, now seen corresponding path program 1 times [2024-02-05 10:30:43,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:43,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292979499] [2024-02-05 10:30:43,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:43,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:43,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:43,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:43,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292979499] [2024-02-05 10:30:43,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292979499] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:43,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:43,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:30:43,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751337698] [2024-02-05 10:30:43,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:43,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:30:43,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:43,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:30:43,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:30:43,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-02-05 10:30:43,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:43,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-02-05 10:30:43,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:43,229 INFO L124 PetriNetUnfolderBase]: 179/560 cut-off events. [2024-02-05 10:30:43,233 INFO L125 PetriNetUnfolderBase]: For 211/217 co-relation queries the response was YES. [2024-02-05 10:30:43,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 560 events. 179/560 cut-off events. For 211/217 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3088 event pairs, 55 based on Foata normal form. 62/601 useless extension candidates. Maximal degree in co-relation 1159. Up to 227 conditions per place. [2024-02-05 10:30:43,236 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 51 selfloop transitions, 5 changer transitions 1/71 dead transitions. [2024-02-05 10:30:43,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 313 flow [2024-02-05 10:30:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:43,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-02-05 10:30:43,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5787037037037037 [2024-02-05 10:30:43,238 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 169 flow. Second operand 4 states and 125 transitions. [2024-02-05 10:30:43,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 313 flow [2024-02-05 10:30:43,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 71 transitions, 303 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-02-05 10:30:43,242 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 164 flow [2024-02-05 10:30:43,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2024-02-05 10:30:43,244 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2024-02-05 10:30:43,244 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 164 flow [2024-02-05 10:30:43,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:43,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:43,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-05 10:30:43,245 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:43,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:43,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1505845666, now seen corresponding path program 1 times [2024-02-05 10:30:43,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:43,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937133193] [2024-02-05 10:30:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:43,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:43,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:43,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937133193] [2024-02-05 10:30:43,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937133193] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:43,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:43,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-05 10:30:43,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310571795] [2024-02-05 10:30:43,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:43,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:30:43,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:43,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:30:43,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:30:43,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 54 [2024-02-05 10:30:43,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:43,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 54 [2024-02-05 10:30:43,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:43,462 INFO L124 PetriNetUnfolderBase]: 60/299 cut-off events. [2024-02-05 10:30:43,463 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-02-05 10:30:43,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 299 events. 60/299 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1487 event pairs, 28 based on Foata normal form. 7/287 useless extension candidates. Maximal degree in co-relation 547. Up to 102 conditions per place. [2024-02-05 10:30:43,464 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 26 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2024-02-05 10:30:43,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 243 flow [2024-02-05 10:30:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-02-05 10:30:43,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7731481481481481 [2024-02-05 10:30:43,466 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 164 flow. Second operand 4 states and 167 transitions. [2024-02-05 10:30:43,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 243 flow [2024-02-05 10:30:43,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 57 transitions, 221 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-02-05 10:30:43,470 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 158 flow [2024-02-05 10:30:43,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2024-02-05 10:30:43,472 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2024-02-05 10:30:43,473 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 158 flow [2024-02-05 10:30:43,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:43,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:43,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-05 10:30:43,473 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:43,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:43,474 INFO L85 PathProgramCache]: Analyzing trace with hash 432920634, now seen corresponding path program 1 times [2024-02-05 10:30:43,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:43,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981729311] [2024-02-05 10:30:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:43,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:43,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:43,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981729311] [2024-02-05 10:30:43,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981729311] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:43,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:43,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:30:43,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906693920] [2024-02-05 10:30:43,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:43,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:30:43,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:30:43,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:30:43,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-02-05 10:30:43,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:43,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-02-05 10:30:43,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:43,737 INFO L124 PetriNetUnfolderBase]: 134/456 cut-off events. [2024-02-05 10:30:43,738 INFO L125 PetriNetUnfolderBase]: For 155/157 co-relation queries the response was YES. [2024-02-05 10:30:43,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 456 events. 134/456 cut-off events. For 155/157 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2351 event pairs, 57 based on Foata normal form. 10/444 useless extension candidates. Maximal degree in co-relation 944. Up to 197 conditions per place. [2024-02-05 10:30:43,740 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 51 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2024-02-05 10:30:43,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 337 flow [2024-02-05 10:30:43,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:43,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-02-05 10:30:43,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5787037037037037 [2024-02-05 10:30:43,741 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 158 flow. Second operand 4 states and 125 transitions. [2024-02-05 10:30:43,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 337 flow [2024-02-05 10:30:43,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 71 transitions, 336 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-05 10:30:43,744 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 195 flow [2024-02-05 10:30:43,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=195, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2024-02-05 10:30:43,745 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-02-05 10:30:43,745 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 195 flow [2024-02-05 10:30:43,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:43,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:43,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-05 10:30:43,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:43,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:43,747 INFO L85 PathProgramCache]: Analyzing trace with hash -944226412, now seen corresponding path program 2 times [2024-02-05 10:30:43,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:43,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378780034] [2024-02-05 10:30:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:43,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:43,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378780034] [2024-02-05 10:30:43,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378780034] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:43,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:43,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:30:43,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089474370] [2024-02-05 10:30:43,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:43,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:30:43,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:43,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:30:43,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:30:43,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-02-05 10:30:43,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:43,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:43,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-02-05 10:30:43,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:44,006 INFO L124 PetriNetUnfolderBase]: 147/495 cut-off events. [2024-02-05 10:30:44,006 INFO L125 PetriNetUnfolderBase]: For 346/348 co-relation queries the response was YES. [2024-02-05 10:30:44,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 495 events. 147/495 cut-off events. For 346/348 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2596 event pairs, 37 based on Foata normal form. 8/486 useless extension candidates. Maximal degree in co-relation 1093. Up to 166 conditions per place. [2024-02-05 10:30:44,009 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 46 selfloop transitions, 9 changer transitions 2/71 dead transitions. [2024-02-05 10:30:44,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 71 transitions, 360 flow [2024-02-05 10:30:44,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-02-05 10:30:44,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-02-05 10:30:44,010 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 195 flow. Second operand 4 states and 123 transitions. [2024-02-05 10:30:44,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 71 transitions, 360 flow [2024-02-05 10:30:44,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:30:44,014 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 215 flow [2024-02-05 10:30:44,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=215, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-02-05 10:30:44,015 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-02-05 10:30:44,016 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 215 flow [2024-02-05 10:30:44,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:44,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:44,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-05 10:30:44,016 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:44,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1526361693, now seen corresponding path program 1 times [2024-02-05 10:30:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274376416] [2024-02-05 10:30:44,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:44,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:44,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274376416] [2024-02-05 10:30:44,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274376416] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:44,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:44,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-05 10:30:44,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260490029] [2024-02-05 10:30:44,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:44,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:30:44,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:44,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:30:44,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:30:44,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-02-05 10:30:44,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:44,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-02-05 10:30:44,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:44,175 INFO L124 PetriNetUnfolderBase]: 144/463 cut-off events. [2024-02-05 10:30:44,176 INFO L125 PetriNetUnfolderBase]: For 479/481 co-relation queries the response was YES. [2024-02-05 10:30:44,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 463 events. 144/463 cut-off events. For 479/481 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2443 event pairs, 56 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 1117. Up to 147 conditions per place. [2024-02-05 10:30:44,177 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 28 selfloop transitions, 7 changer transitions 26/79 dead transitions. [2024-02-05 10:30:44,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 79 transitions, 436 flow [2024-02-05 10:30:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-05 10:30:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-05 10:30:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2024-02-05 10:30:44,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6555555555555556 [2024-02-05 10:30:44,179 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 215 flow. Second operand 5 states and 177 transitions. [2024-02-05 10:30:44,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 79 transitions, 436 flow [2024-02-05 10:30:44,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 79 transitions, 417 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-02-05 10:30:44,182 INFO L231 Difference]: Finished difference. Result has 68 places, 49 transitions, 219 flow [2024-02-05 10:30:44,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=68, PETRI_TRANSITIONS=49} [2024-02-05 10:30:44,183 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 12 predicate places. [2024-02-05 10:30:44,183 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 49 transitions, 219 flow [2024-02-05 10:30:44,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:44,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:44,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-05 10:30:44,184 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:44,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2047517859, now seen corresponding path program 1 times [2024-02-05 10:30:44,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:44,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049265284] [2024-02-05 10:30:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:44,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:44,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:44,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049265284] [2024-02-05 10:30:44,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049265284] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:44,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:44,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-05 10:30:44,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470986669] [2024-02-05 10:30:44,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:44,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:30:44,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:44,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:30:44,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:30:44,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 54 [2024-02-05 10:30:44,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 49 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:44,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 54 [2024-02-05 10:30:44,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:44,429 INFO L124 PetriNetUnfolderBase]: 50/269 cut-off events. [2024-02-05 10:30:44,430 INFO L125 PetriNetUnfolderBase]: For 389/391 co-relation queries the response was YES. [2024-02-05 10:30:44,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 269 events. 50/269 cut-off events. For 389/391 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1215 event pairs, 11 based on Foata normal form. 3/266 useless extension candidates. Maximal degree in co-relation 651. Up to 89 conditions per place. [2024-02-05 10:30:44,431 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 18 selfloop transitions, 5 changer transitions 9/55 dead transitions. [2024-02-05 10:30:44,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 55 transitions, 303 flow [2024-02-05 10:30:44,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:44,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2024-02-05 10:30:44,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-02-05 10:30:44,432 INFO L175 Difference]: Start difference. First operand has 68 places, 49 transitions, 219 flow. Second operand 4 states and 162 transitions. [2024-02-05 10:30:44,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 55 transitions, 303 flow [2024-02-05 10:30:44,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 275 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-02-05 10:30:44,435 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 174 flow [2024-02-05 10:30:44,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-02-05 10:30:44,436 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-02-05 10:30:44,436 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 174 flow [2024-02-05 10:30:44,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:44,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:44,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-05 10:30:44,437 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:44,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:44,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1630417413, now seen corresponding path program 1 times [2024-02-05 10:30:44,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:44,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363011742] [2024-02-05 10:30:44,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:44,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:44,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:44,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363011742] [2024-02-05 10:30:44,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363011742] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:44,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:44,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-05 10:30:44,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072557574] [2024-02-05 10:30:44,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:44,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:30:44,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:44,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:30:44,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:30:44,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 54 [2024-02-05 10:30:44,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:44,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 54 [2024-02-05 10:30:44,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:44,609 INFO L124 PetriNetUnfolderBase]: 16/108 cut-off events. [2024-02-05 10:30:44,609 INFO L125 PetriNetUnfolderBase]: For 126/128 co-relation queries the response was YES. [2024-02-05 10:30:44,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 108 events. 16/108 cut-off events. For 126/128 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 283 event pairs, 1 based on Foata normal form. 8/112 useless extension candidates. Maximal degree in co-relation 248. Up to 38 conditions per place. [2024-02-05 10:30:44,610 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 21 selfloop transitions, 5 changer transitions 1/50 dead transitions. [2024-02-05 10:30:44,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 50 transitions, 250 flow [2024-02-05 10:30:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:44,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2024-02-05 10:30:44,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-02-05 10:30:44,612 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 174 flow. Second operand 4 states and 162 transitions. [2024-02-05 10:30:44,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 50 transitions, 250 flow [2024-02-05 10:30:44,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 222 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-02-05 10:30:44,613 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 170 flow [2024-02-05 10:30:44,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2024-02-05 10:30:44,614 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 4 predicate places. [2024-02-05 10:30:44,614 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 170 flow [2024-02-05 10:30:44,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:30:44,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:44,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-05 10:30:44,615 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-05 10:30:44,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:30:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1982805180, now seen corresponding path program 1 times [2024-02-05 10:30:44,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:30:44,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928025352] [2024-02-05 10:30:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:30:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:30:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:30:44,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:30:44,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:30:44,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928025352] [2024-02-05 10:30:44,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928025352] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:30:44,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:30:44,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-05 10:30:44,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881990424] [2024-02-05 10:30:44,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:30:44,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-05 10:30:44,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:30:44,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-05 10:30:44,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-05 10:30:44,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 54 [2024-02-05 10:30:44,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:30:44,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 54 [2024-02-05 10:30:44,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:30:44,814 INFO L124 PetriNetUnfolderBase]: 11/73 cut-off events. [2024-02-05 10:30:44,815 INFO L125 PetriNetUnfolderBase]: For 92/94 co-relation queries the response was YES. [2024-02-05 10:30:44,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 73 events. 11/73 cut-off events. For 92/94 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 226 event pairs, 8 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 163. Up to 31 conditions per place. [2024-02-05 10:30:44,815 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2024-02-05 10:30:44,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 31 transitions, 167 flow [2024-02-05 10:30:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:30:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:30:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2024-02-05 10:30:44,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2024-02-05 10:30:44,817 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 170 flow. Second operand 4 states and 152 transitions. [2024-02-05 10:30:44,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 31 transitions, 167 flow [2024-02-05 10:30:44,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 31 transitions, 157 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-05 10:30:44,818 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-02-05 10:30:44,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-02-05 10:30:44,818 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -11 predicate places. [2024-02-05 10:30:44,818 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-02-05 10:30:44,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:30:44,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 22 remaining) [2024-02-05 10:30:44,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 22 remaining) [2024-02-05 10:30:44,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 22 remaining) [2024-02-05 10:30:44,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 22 remaining) [2024-02-05 10:30:44,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (17 of 22 remaining) [2024-02-05 10:30:44,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 22 remaining) [2024-02-05 10:30:44,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 22 remaining) [2024-02-05 10:30:44,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 22 remaining) [2024-02-05 10:30:44,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 22 remaining) [2024-02-05 10:30:44,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 22 remaining) [2024-02-05 10:30:44,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 22 remaining) [2024-02-05 10:30:44,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 22 remaining) [2024-02-05 10:30:44,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 22 remaining) [2024-02-05 10:30:44,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 22 remaining) [2024-02-05 10:30:44,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 22 remaining) [2024-02-05 10:30:44,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-02-05 10:30:44,824 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:30:44,828 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-05 10:30:44,829 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-05 10:30:44,832 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-02-05 10:30:44,832 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-02-05 10:30:44,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 10:30:44 BasicIcfg [2024-02-05 10:30:44,834 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-05 10:30:44,836 INFO L158 Benchmark]: Toolchain (without parser) took 4410.78ms. Allocated memory was 159.4MB in the beginning and 287.3MB in the end (delta: 127.9MB). Free memory was 97.2MB in the beginning and 138.5MB in the end (delta: -41.3MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. [2024-02-05 10:30:44,836 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-05 10:30:44,836 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory was 115.6MB in the beginning and 115.4MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-05 10:30:44,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.01ms. Allocated memory is still 159.4MB. Free memory was 97.2MB in the beginning and 69.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-02-05 10:30:44,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.48ms. Allocated memory is still 159.4MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-05 10:30:44,837 INFO L158 Benchmark]: Boogie Preprocessor took 94.13ms. Allocated memory is still 159.4MB. Free memory was 67.8MB in the beginning and 128.2MB in the end (delta: -60.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-02-05 10:30:44,837 INFO L158 Benchmark]: RCFGBuilder took 547.36ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 128.1MB in the beginning and 161.2MB in the end (delta: -33.1MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2024-02-05 10:30:44,837 INFO L158 Benchmark]: TraceAbstraction took 3213.36ms. Allocated memory was 222.3MB in the beginning and 287.3MB in the end (delta: 65.0MB). Free memory was 160.2MB in the beginning and 138.5MB in the end (delta: 21.7MB). Peak memory consumption was 86.7MB. Max. memory is 16.1GB. [2024-02-05 10:30:44,839 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 0.14ms. Allocated memory is still 159.4MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory was 115.6MB in the beginning and 115.4MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.01ms. Allocated memory is still 159.4MB. Free memory was 97.2MB in the beginning and 69.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.48ms. Allocated memory is still 159.4MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.13ms. Allocated memory is still 159.4MB. Free memory was 67.8MB in the beginning and 128.2MB in the end (delta: -60.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * RCFGBuilder took 547.36ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 128.1MB in the beginning and 161.2MB in the end (delta: -33.1MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3213.36ms. Allocated memory was 222.3MB in the beginning and 287.3MB in the end (delta: 65.0MB). Free memory was 160.2MB in the beginning and 138.5MB in the end (delta: 21.7MB). Peak memory consumption was 86.7MB. 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: 699]: 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: 701]: 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: 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: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 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, 85 locations, 22 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: 3.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 574 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 863 IncrementalHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 59 mSDtfsCounter, 863 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=9, InterpolantAutomatonStates: 47, 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, 1.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 1031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-05 10:30:44,871 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