./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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_40-traces-ex-6_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_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-8857f20-m [2024-01-29 22:55:26,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:55:26,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:55:26,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:55:26,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:55:26,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:55:26,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:55:26,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:55:26,413 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:55:26,417 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:55:26,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:55:26,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:55:26,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:55:26,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:55:26,420 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:55:26,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:55:26,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:55:26,421 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:55:26,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:55:26,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:55:26,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:55:26,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:55:26,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:55:26,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:55:26,423 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:55:26,423 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:55:26,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:55:26,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:55:26,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:55:26,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:55:26,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:55:26,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:55:26,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:26,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:55:26,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:55:26,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:55:26,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:55:26,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:55:26,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:55:26,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:55:26,428 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:55:26,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:55:26,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:55:26,429 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:55:26,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:55:26,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:55:26,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:55:26,742 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:55:26,742 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:55:26,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml [2024-01-29 22:55:26,822 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:55:26,823 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:55:26,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-29 22:55:28,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:55:28,407 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:55:28,407 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-29 22:55:28,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72d8eb3b4/49e672a8deb549178da424fe08baa6ae/FLAGd66aebe98 [2024-01-29 22:55:28,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72d8eb3b4/49e672a8deb549178da424fe08baa6ae [2024-01-29 22:55:28,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:55:28,444 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:55:28,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:28,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:55:28,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:55:28,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:26" (1/2) ... [2024-01-29 22:55:28,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2b2fa7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:28, skipping insertion in model container [2024-01-29 22:55:28,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:26" (1/2) ... [2024-01-29 22:55:28,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1669c8de and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:28, skipping insertion in model container [2024-01-29 22:55:28,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:28" (2/2) ... [2024-01-29 22:55:28,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2b2fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28, skipping insertion in model container [2024-01-29 22:55:28,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:28" (2/2) ... [2024-01-29 22:55:28,455 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:55:28,484 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:55:28,486 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g == 2 [2024-01-29 22:55:28,486 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] g == 2 [2024-01-29 22:55:28,486 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-29 22:55:28,486 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,486 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 22:55:28,487 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,487 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-29 22:55:28,487 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 2 [2024-01-29 22:55:28,487 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,487 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 2 [2024-01-29 22:55:28,487 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (g == 2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,488 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-29 22:55:28,488 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-01-29 22:55:28,488 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 2 [2024-01-29 22:55:28,488 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (g == 2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,536 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:55:28,708 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_40-traces-ex-6_true.i[1088,1101] [2024-01-29 22:55:28,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:28,849 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:55:28,861 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_40-traces-ex-6_true.i[1088,1101] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:55:28,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:28,957 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:55:28,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28 WrapperNode [2024-01-29 22:55:28,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:28,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:28,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:55:28,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:55:28,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:28,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,021 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-01-29 22:55:29,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:29,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:55:29,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:55:29,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:55:29,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,079 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-29 22:55:29,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:55:29,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:55:29,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:55:29,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:55:29,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (1/1) ... [2024-01-29 22:55:29,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:29,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:55:29,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:55:29,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:55:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:55:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:55:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:55:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 22:55:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 22:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:55:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:55:29,233 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:55:29,345 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:55:29,346 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:55:29,592 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:55:29,592 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:55:29,677 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:55:29,677 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:55:29,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:29 BoogieIcfgContainer [2024-01-29 22:55:29,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:55:29,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:55:29,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:55:29,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:55:29,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:26" (1/4) ... [2024-01-29 22:55:29,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1127ed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:55:29, skipping insertion in model container [2024-01-29 22:55:29,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:55:28" (2/4) ... [2024-01-29 22:55:29,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1127ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:29, skipping insertion in model container [2024-01-29 22:55:29,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28" (3/4) ... [2024-01-29 22:55:29,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1127ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:29, skipping insertion in model container [2024-01-29 22:55:29,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:29" (4/4) ... [2024-01-29 22:55:29,694 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-01-29 22:55:29,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:55:29,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-01-29 22:55:29,712 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:55:29,787 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:55:29,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 112 flow [2024-01-29 22:55:29,870 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-01-29 22:55:29,870 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:29,874 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 67 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-01-29 22:55:29,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 54 transitions, 112 flow [2024-01-29 22:55:29,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 53 transitions, 109 flow [2024-01-29 22:55:29,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:55:29,904 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;@1118f23d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:55:29,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-01-29 22:55:29,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:55:29,908 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:55:29,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:29,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:29,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:55:29,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:29,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash 7399, now seen corresponding path program 1 times [2024-01-29 22:55:29,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:29,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376272240] [2024-01-29 22:55:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:29,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:30,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:30,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376272240] [2024-01-29 22:55:30,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376272240] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:30,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:30,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:55:30,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640643472] [2024-01-29 22:55:30,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:30,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:30,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:30,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:30,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:30,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-01-29 22:55:30,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:30,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:30,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-01-29 22:55:30,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:30,372 INFO L124 PetriNetUnfolderBase]: 129/467 cut-off events. [2024-01-29 22:55:30,373 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:30,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 467 events. 129/467 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2612 event pairs, 88 based on Foata normal form. 45/486 useless extension candidates. Maximal degree in co-relation 786. Up to 232 conditions per place. [2024-01-29 22:55:30,378 INFO L140 encePairwiseOnDemand]: 39/54 looper letters, 32 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-01-29 22:55:30,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 191 flow [2024-01-29 22:55:30,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-01-29 22:55:30,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.691358024691358 [2024-01-29 22:55:30,391 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 109 flow. Second operand 3 states and 112 transitions. [2024-01-29 22:55:30,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 191 flow [2024-01-29 22:55:30,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:30,396 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 136 flow [2024-01-29 22:55:30,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-01-29 22:55:30,401 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-29 22:55:30,401 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 136 flow [2024-01-29 22:55:30,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:30,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:30,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:55:30,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:55:30,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:30,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash 220709500, now seen corresponding path program 1 times [2024-01-29 22:55:30,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:30,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115041264] [2024-01-29 22:55:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:30,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:30,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:30,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115041264] [2024-01-29 22:55:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115041264] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:30,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:30,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:30,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081221420] [2024-01-29 22:55:30,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:30,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 54 [2024-01-29 22:55:30,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:30,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:30,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 54 [2024-01-29 22:55:30,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:30,763 INFO L124 PetriNetUnfolderBase]: 64/336 cut-off events. [2024-01-29 22:55:30,763 INFO L125 PetriNetUnfolderBase]: For 50/51 co-relation queries the response was YES. [2024-01-29 22:55:30,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 336 events. 64/336 cut-off events. For 50/51 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1890 event pairs, 33 based on Foata normal form. 7/306 useless extension candidates. Maximal degree in co-relation 575. Up to 140 conditions per place. [2024-01-29 22:55:30,766 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 21 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-29 22:55:30,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 54 transitions, 190 flow [2024-01-29 22:55:30,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:30,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-01-29 22:55:30,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7453703703703703 [2024-01-29 22:55:30,769 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 136 flow. Second operand 4 states and 161 transitions. [2024-01-29 22:55:30,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 54 transitions, 190 flow [2024-01-29 22:55:30,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:30,772 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 126 flow [2024-01-29 22:55:30,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2024-01-29 22:55:30,773 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-01-29 22:55:30,773 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 126 flow [2024-01-29 22:55:30,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:30,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:30,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:30,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:55:30,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:30,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:30,774 INFO L85 PathProgramCache]: Analyzing trace with hash -437959448, now seen corresponding path program 1 times [2024-01-29 22:55:30,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:30,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673476201] [2024-01-29 22:55:30,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:30,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:30,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:30,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673476201] [2024-01-29 22:55:30,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673476201] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:30,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:30,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:30,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575515417] [2024-01-29 22:55:30,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:30,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:30,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:30,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:30,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:30,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-01-29 22:55:30,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:30,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:30,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-01-29 22:55:30,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,000 INFO L124 PetriNetUnfolderBase]: 153/489 cut-off events. [2024-01-29 22:55:31,000 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-01-29 22:55:31,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 489 events. 153/489 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2589 event pairs, 32 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 976. Up to 178 conditions per place. [2024-01-29 22:55:31,006 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 41 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2024-01-29 22:55:31,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 252 flow [2024-01-29 22:55:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:31,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-01-29 22:55:31,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49074074074074076 [2024-01-29 22:55:31,011 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 126 flow. Second operand 4 states and 106 transitions. [2024-01-29 22:55:31,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 252 flow [2024-01-29 22:55:31,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 61 transitions, 249 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:31,014 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 133 flow [2024-01-29 22:55:31,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-01-29 22:55:31,016 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-01-29 22:55:31,016 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 133 flow [2024-01-29 22:55:31,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:55:31,017 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:31,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1051219167, now seen corresponding path program 1 times [2024-01-29 22:55:31,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308274666] [2024-01-29 22:55:31,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308274666] [2024-01-29 22:55:31,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308274666] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:31,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907873165] [2024-01-29 22:55:31,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:31,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:31,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:31,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-01-29 22:55:31,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-01-29 22:55:31,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,266 INFO L124 PetriNetUnfolderBase]: 163/502 cut-off events. [2024-01-29 22:55:31,267 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-01-29 22:55:31,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 502 events. 163/502 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2689 event pairs, 86 based on Foata normal form. 0/488 useless extension candidates. Maximal degree in co-relation 1059. Up to 220 conditions per place. [2024-01-29 22:55:31,271 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 43 selfloop transitions, 12 changer transitions 4/73 dead transitions. [2024-01-29 22:55:31,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 73 transitions, 321 flow [2024-01-29 22:55:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-01-29 22:55:31,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-01-29 22:55:31,276 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 133 flow. Second operand 5 states and 156 transitions. [2024-01-29 22:55:31,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 73 transitions, 321 flow [2024-01-29 22:55:31,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 301 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:31,283 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 193 flow [2024-01-29 22:55:31,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2024-01-29 22:55:31,285 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2024-01-29 22:55:31,286 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 193 flow [2024-01-29 22:55:31,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:55:31,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:31,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash 240599437, now seen corresponding path program 1 times [2024-01-29 22:55:31,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441939357] [2024-01-29 22:55:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441939357] [2024-01-29 22:55:31,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441939357] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:31,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941562009] [2024-01-29 22:55:31,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:31,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:31,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-01-29 22:55:31,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2024-01-29 22:55:31,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-01-29 22:55:31,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,509 INFO L124 PetriNetUnfolderBase]: 122/383 cut-off events. [2024-01-29 22:55:31,510 INFO L125 PetriNetUnfolderBase]: For 194/203 co-relation queries the response was YES. [2024-01-29 22:55:31,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 383 events. 122/383 cut-off events. For 194/203 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1846 event pairs, 89 based on Foata normal form. 30/407 useless extension candidates. Maximal degree in co-relation 902. Up to 198 conditions per place. [2024-01-29 22:55:31,512 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 30 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-01-29 22:55:31,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 52 transitions, 249 flow [2024-01-29 22:55:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:31,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-01-29 22:55:31,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2024-01-29 22:55:31,514 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 193 flow. Second operand 3 states and 111 transitions. [2024-01-29 22:55:31,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 52 transitions, 249 flow [2024-01-29 22:55:31,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 249 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:55:31,518 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 181 flow [2024-01-29 22:55:31,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2024-01-29 22:55:31,521 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2024-01-29 22:55:31,521 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 181 flow [2024-01-29 22:55:31,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2024-01-29 22:55:31,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:55:31,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:31,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1131351772, now seen corresponding path program 1 times [2024-01-29 22:55:31,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142632817] [2024-01-29 22:55:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142632817] [2024-01-29 22:55:31,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142632817] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:31,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750813709] [2024-01-29 22:55:31,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:31,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:31,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-01-29 22:55:31,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 181 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 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) [2024-01-29 22:55:31,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-01-29 22:55:31,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,747 INFO L124 PetriNetUnfolderBase]: 142/407 cut-off events. [2024-01-29 22:55:31,748 INFO L125 PetriNetUnfolderBase]: For 260/275 co-relation queries the response was YES. [2024-01-29 22:55:31,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 407 events. 142/407 cut-off events. For 260/275 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1844 event pairs, 18 based on Foata normal form. 20/424 useless extension candidates. Maximal degree in co-relation 1007. Up to 208 conditions per place. [2024-01-29 22:55:31,751 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 39 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2024-01-29 22:55:31,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 58 transitions, 301 flow [2024-01-29 22:55:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2024-01-29 22:55:31,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-01-29 22:55:31,752 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 181 flow. Second operand 4 states and 120 transitions. [2024-01-29 22:55:31,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 58 transitions, 301 flow [2024-01-29 22:55:31,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:31,756 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 179 flow [2024-01-29 22:55:31,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2024-01-29 22:55:31,759 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2024-01-29 22:55:31,759 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 179 flow [2024-01-29 22:55:31,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 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) [2024-01-29 22:55:31,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:55:31,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:31,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1993345493, now seen corresponding path program 1 times [2024-01-29 22:55:31,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938192068] [2024-01-29 22:55:31,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938192068] [2024-01-29 22:55:31,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938192068] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:31,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738546431] [2024-01-29 22:55:31,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:31,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:31,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:31,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-29 22:55:31,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-29 22:55:31,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,871 INFO L124 PetriNetUnfolderBase]: 35/185 cut-off events. [2024-01-29 22:55:31,872 INFO L125 PetriNetUnfolderBase]: For 137/143 co-relation queries the response was YES. [2024-01-29 22:55:31,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 185 events. 35/185 cut-off events. For 137/143 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 757 event pairs, 13 based on Foata normal form. 5/181 useless extension candidates. Maximal degree in co-relation 407. Up to 59 conditions per place. [2024-01-29 22:55:31,873 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 22 selfloop transitions, 5 changer transitions 3/55 dead transitions. [2024-01-29 22:55:31,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 55 transitions, 277 flow [2024-01-29 22:55:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-01-29 22:55:31,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.845679012345679 [2024-01-29 22:55:31,875 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 179 flow. Second operand 3 states and 137 transitions. [2024-01-29 22:55:31,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 55 transitions, 277 flow [2024-01-29 22:55:31,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 55 transitions, 259 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:31,877 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 178 flow [2024-01-29 22:55:31,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-01-29 22:55:31,878 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2024-01-29 22:55:31,878 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 178 flow [2024-01-29 22:55:31,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:55:31,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:31,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash 709723847, now seen corresponding path program 1 times [2024-01-29 22:55:31,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672173598] [2024-01-29 22:55:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672173598] [2024-01-29 22:55:31,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672173598] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:31,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819134234] [2024-01-29 22:55:31,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:31,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:31,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:31,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-29 22:55:31,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-29 22:55:31,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:32,041 INFO L124 PetriNetUnfolderBase]: 30/172 cut-off events. [2024-01-29 22:55:32,041 INFO L125 PetriNetUnfolderBase]: For 124/134 co-relation queries the response was YES. [2024-01-29 22:55:32,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 172 events. 30/172 cut-off events. For 124/134 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 618 event pairs, 8 based on Foata normal form. 3/165 useless extension candidates. Maximal degree in co-relation 382. Up to 54 conditions per place. [2024-01-29 22:55:32,042 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 18 selfloop transitions, 5 changer transitions 1/48 dead transitions. [2024-01-29 22:55:32,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 48 transitions, 233 flow [2024-01-29 22:55:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:32,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:32,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 169 transitions. [2024-01-29 22:55:32,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7824074074074074 [2024-01-29 22:55:32,044 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 178 flow. Second operand 4 states and 169 transitions. [2024-01-29 22:55:32,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 48 transitions, 233 flow [2024-01-29 22:55:32,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 48 transitions, 209 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-01-29 22:55:32,046 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 155 flow [2024-01-29 22:55:32,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-01-29 22:55:32,046 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-01-29 22:55:32,046 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 155 flow [2024-01-29 22:55:32,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:32,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:32,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:55:32,047 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:32,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:32,048 INFO L85 PathProgramCache]: Analyzing trace with hash 711098930, now seen corresponding path program 1 times [2024-01-29 22:55:32,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:32,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776603609] [2024-01-29 22:55:32,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:32,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:32,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:32,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776603609] [2024-01-29 22:55:32,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776603609] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:32,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:32,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:32,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910904407] [2024-01-29 22:55:32,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:32,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:32,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:32,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:32,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:32,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-01-29 22:55:32,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:32,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-01-29 22:55:32,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:32,221 INFO L124 PetriNetUnfolderBase]: 81/263 cut-off events. [2024-01-29 22:55:32,222 INFO L125 PetriNetUnfolderBase]: For 144/159 co-relation queries the response was YES. [2024-01-29 22:55:32,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 263 events. 81/263 cut-off events. For 144/159 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 984 event pairs, 18 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 664. Up to 112 conditions per place. [2024-01-29 22:55:32,223 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 32 selfloop transitions, 6 changer transitions 14/61 dead transitions. [2024-01-29 22:55:32,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 61 transitions, 320 flow [2024-01-29 22:55:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:32,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:32,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-01-29 22:55:32,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47685185185185186 [2024-01-29 22:55:32,225 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 155 flow. Second operand 4 states and 103 transitions. [2024-01-29 22:55:32,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 61 transitions, 320 flow [2024-01-29 22:55:32,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 61 transitions, 301 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:32,227 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 132 flow [2024-01-29 22:55:32,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2024-01-29 22:55:32,228 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-01-29 22:55:32,228 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 132 flow [2024-01-29 22:55:32,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:32,228 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] [2024-01-29 22:55:32,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:55:32,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-29 22:55:32,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:32,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1816483521, now seen corresponding path program 1 times [2024-01-29 22:55:32,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:32,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200684225] [2024-01-29 22:55:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:32,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:32,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:32,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200684225] [2024-01-29 22:55:32,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200684225] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:32,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:32,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711733917] [2024-01-29 22:55:32,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:32,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:32,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:32,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:32,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-29 22:55:32,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:32,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-29 22:55:32,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:32,349 INFO L124 PetriNetUnfolderBase]: 12/82 cut-off events. [2024-01-29 22:55:32,350 INFO L125 PetriNetUnfolderBase]: For 38/40 co-relation queries the response was YES. [2024-01-29 22:55:32,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 82 events. 12/82 cut-off events. For 38/40 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 169 event pairs, 6 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 168. Up to 23 conditions per place. [2024-01-29 22:55:32,350 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2024-01-29 22:55:32,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 155 flow [2024-01-29 22:55:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:32,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-01-29 22:55:32,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7685185185185185 [2024-01-29 22:55:32,352 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 132 flow. Second operand 4 states and 166 transitions. [2024-01-29 22:55:32,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 155 flow [2024-01-29 22:55:32,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 137 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 22:55:32,353 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-01-29 22:55:32,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-01-29 22:55:32,354 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -12 predicate places. [2024-01-29 22:55:32,354 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-01-29 22:55:32,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 29 remaining) [2024-01-29 22:55:32,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 29 remaining) [2024-01-29 22:55:32,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 29 remaining) [2024-01-29 22:55:32,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (25 of 29 remaining) [2024-01-29 22:55:32,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 29 remaining) [2024-01-29 22:55:32,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 29 remaining) [2024-01-29 22:55:32,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 29 remaining) [2024-01-29 22:55:32,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 29 remaining) [2024-01-29 22:55:32,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 29 remaining) [2024-01-29 22:55:32,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 29 remaining) [2024-01-29 22:55:32,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 29 remaining) [2024-01-29 22:55:32,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 29 remaining) [2024-01-29 22:55:32,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 29 remaining) [2024-01-29 22:55:32,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 29 remaining) [2024-01-29 22:55:32,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 29 remaining) [2024-01-29 22:55:32,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 29 remaining) [2024-01-29 22:55:32,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 29 remaining) [2024-01-29 22:55:32,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 29 remaining) [2024-01-29 22:55:32,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 29 remaining) [2024-01-29 22:55:32,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 29 remaining) [2024-01-29 22:55:32,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 29 remaining) [2024-01-29 22:55:32,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 29 remaining) [2024-01-29 22:55:32,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 29 remaining) [2024-01-29 22:55:32,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 29 remaining) [2024-01-29 22:55:32,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 29 remaining) [2024-01-29 22:55:32,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 29 remaining) [2024-01-29 22:55:32,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 29 remaining) [2024-01-29 22:55:32,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 29 remaining) [2024-01-29 22:55:32,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 29 remaining) [2024-01-29 22:55:32,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:55:32,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:32,367 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:55:32,367 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:55:32,370 INFO L503 ceAbstractionStarter]: Automizer considered 15 witness invariants [2024-01-29 22:55:32,371 INFO L504 ceAbstractionStarter]: WitnessConsidered=15 [2024-01-29 22:55:32,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:55:32 BasicIcfg [2024-01-29 22:55:32,372 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:55:32,372 INFO L158 Benchmark]: Toolchain (without parser) took 3928.57ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 115.1MB in the beginning and 85.1MB in the end (delta: 30.0MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,372 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 98.6MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:32,373 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:32,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.40ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 92.1MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.18ms. Allocated memory is still 161.5MB. Free memory was 92.1MB in the beginning and 90.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,373 INFO L158 Benchmark]: Boogie Preprocessor took 78.54ms. Allocated memory is still 161.5MB. Free memory was 90.3MB in the beginning and 87.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,374 INFO L158 Benchmark]: RCFGBuilder took 581.52ms. Allocated memory is still 161.5MB. Free memory was 87.9MB in the beginning and 104.9MB in the end (delta: -17.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,374 INFO L158 Benchmark]: TraceAbstraction took 2684.44ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 104.5MB in the beginning and 85.1MB in the end (delta: 19.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,375 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 0.18ms. Allocated memory is still 98.6MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.40ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 92.1MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.18ms. Allocated memory is still 161.5MB. Free memory was 92.1MB in the beginning and 90.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.54ms. Allocated memory is still 161.5MB. Free memory was 90.3MB in the beginning and 87.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.52ms. Allocated memory is still 161.5MB. Free memory was 87.9MB in the beginning and 104.9MB in the end (delta: -17.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2684.44ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 104.5MB in the beginning and 85.1MB in the end (delta: 19.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 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: 685]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 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: 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: 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: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 565 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 334 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 683 IncrementalHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 68 mSDtfsCounter, 683 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=4, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 22:55:32,403 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