./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_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_29-multiple-protecting2-vesal_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 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_29-multiple-protecting2-vesal_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_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-cb09d65-m [2024-01-27 23:06:50,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:06:50,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:06:50,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:06:50,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:06:50,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:06:50,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:06:50,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:06:50,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:06:50,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:06:50,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:06:50,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:06:50,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:06:50,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:06:50,827 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:06:50,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:06:50,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:06:50,828 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:06:50,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:06:50,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:06:50,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:06:50,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:06:50,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:06:50,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:06:50,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:06:50,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:06:50,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:06:50,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:06:50,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:06:50,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:06:50,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:06:50,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:06:50,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:50,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:06:50,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:06:50,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:06:50,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:06:50,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:06:50,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:06:50,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:06:50,835 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:06:50,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:06:50,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:06:50,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:06:51,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:06:51,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:06:51,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:06:51,165 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:06:51,165 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:06:51,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-27 23:06:52,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:06:52,507 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:06:52,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-27 23:06:52,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10b90fd1/207206bf577d49be911ddf745388800b/FLAG6172b6199 [2024-01-27 23:06:52,537 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10b90fd1/207206bf577d49be911ddf745388800b [2024-01-27 23:06:52,541 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:06:52,544 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:06:52,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml [2024-01-27 23:06:52,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:06:52,658 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:06:52,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:52,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:06:52,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:06:52,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:52" (1/2) ... [2024-01-27 23:06:52,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fce44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:52, skipping insertion in model container [2024-01-27 23:06:52,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:52" (1/2) ... [2024-01-27 23:06:52,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@132521b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:52, skipping insertion in model container [2024-01-27 23:06:52,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:52" (2/2) ... [2024-01-27 23:06:52,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fce44f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:52, skipping insertion in model container [2024-01-27 23:06:52,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:52" (2/2) ... [2024-01-27 23:06:52,671 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:06:52,718 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:06:52,720 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= g2 [2024-01-27 23:06:52,720 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 23:06:52,720 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] 0 <= g2 [2024-01-27 23:06:52,720 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] 0 <= g2 [2024-01-27 23:06:52,721 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-27 23:06:52,721 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-01-27 23:06:52,722 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0 <= g2 [2024-01-27 23:06:52,722 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 1 <= g2 [2024-01-27 23:06:52,722 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 23:06:52,722 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= g2 [2024-01-27 23:06:52,722 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 0 <= g2 [2024-01-27 23:06:52,723 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g2 <= 2147483646 [2024-01-27 23:06:52,723 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= g2 [2024-01-27 23:06:52,723 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 23:06:52,723 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] 1 <= g2 [2024-01-27 23:06:52,723 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 23:06:52,723 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] 0 <= g2 [2024-01-27 23:06:52,724 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 23:06:52,724 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g2 [2024-01-27 23:06:52,724 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] 0 <= g2 [2024-01-27 23:06:52,724 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-27 23:06:52,725 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-27 23:06:52,725 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-27 23:06:52,725 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= g2 [2024-01-27 23:06:52,725 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 23:06:52,725 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g2 <= 2147483646 [2024-01-27 23:06:52,726 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 23:06:52,726 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 1 <= g2 [2024-01-27 23:06:52,726 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 23:06:52,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:06:52,969 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-01-27 23:06:53,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:53,133 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:06:53,145 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-01-27 23:06:53,146 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 [2024-01-27 23:06:53,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:53,259 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:06:53,259 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53 WrapperNode [2024-01-27 23:06:53,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:53,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:53,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:06:53,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:06:53,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,315 INFO L138 Inliner]: procedures = 163, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 96 [2024-01-27 23:06:53,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:53,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:06:53,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:06:53,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:06:53,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,349 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-01-27 23:06:53,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:06:53,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:06:53,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:06:53,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:06:53,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (1/1) ... [2024-01-27 23:06:53,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:53,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:06:53,429 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) [2024-01-27 23:06:53,431 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 [2024-01-27 23:06:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:06:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:06:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:06:53,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:06:53,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 23:06:53,458 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-27 23:06:53,460 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-27 23:06:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:06:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:06:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:06:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:06:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 23:06:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 23:06:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:06:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:06:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:06:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:06:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:06:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:06:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:06:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 23:06:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 23:06:53,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:06:53,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:06:53,464 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:06:53,583 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:06:53,585 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:06:53,914 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:06:53,914 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:06:54,057 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:06:54,057 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:06:54,059 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:54 BoogieIcfgContainer [2024-01-27 23:06:54,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:06:54,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:06:54,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:06:54,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:06:54,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:06:52" (1/4) ... [2024-01-27 23:06:54,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cceb702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:06:54, skipping insertion in model container [2024-01-27 23:06:54,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:52" (2/4) ... [2024-01-27 23:06:54,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cceb702 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:06:54, skipping insertion in model container [2024-01-27 23:06:54,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:53" (3/4) ... [2024-01-27 23:06:54,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cceb702 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:06:54, skipping insertion in model container [2024-01-27 23:06:54,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:54" (4/4) ... [2024-01-27 23:06:54,070 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-27 23:06:54,087 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:06:54,087 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-01-27 23:06:54,088 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:06:54,166 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-27 23:06:54,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 211 flow [2024-01-27 23:06:54,267 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2024-01-27 23:06:54,268 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 23:06:54,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 3/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2024-01-27 23:06:54,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 102 transitions, 211 flow [2024-01-27 23:06:54,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 201 flow [2024-01-27 23:06:54,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:06:54,301 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;@3bcb03a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:06:54,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-01-27 23:06:54,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:06:54,305 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:06:54,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:06:54,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:54,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:06:54,309 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:54,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:54,314 INFO L85 PathProgramCache]: Analyzing trace with hash 11350, now seen corresponding path program 1 times [2024-01-27 23:06:54,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:54,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590594268] [2024-01-27 23:06:54,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:54,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:54,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:54,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590594268] [2024-01-27 23:06:54,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590594268] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:54,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:54,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:06:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695316972] [2024-01-27 23:06:54,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:54,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:54,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:54,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:54,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 102 [2024-01-27 23:06:54,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2024-01-27 23:06:54,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:54,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 102 [2024-01-27 23:06:54,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:54,955 INFO L124 PetriNetUnfolderBase]: 324/1148 cut-off events. [2024-01-27 23:06:54,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:06:54,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1148 events. 324/1148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 7737 event pairs, 116 based on Foata normal form. 92/1060 useless extension candidates. Maximal degree in co-relation 1831. Up to 605 conditions per place. [2024-01-27 23:06:54,969 INFO L140 encePairwiseOnDemand]: 87/102 looper letters, 55 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-27 23:06:54,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 109 transitions, 335 flow [2024-01-27 23:06:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:06:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:06:54,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-01-27 23:06:54,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7581699346405228 [2024-01-27 23:06:54,987 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 201 flow. Second operand 3 states and 232 transitions. [2024-01-27 23:06:54,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 109 transitions, 335 flow [2024-01-27 23:06:54,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:06:54,995 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 208 flow [2024-01-27 23:06:54,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2024-01-27 23:06:55,000 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -1 predicate places. [2024-01-27 23:06:55,000 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 208 flow [2024-01-27 23:06:55,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2024-01-27 23:06:55,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:55,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:06:55,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:06:55,002 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:55,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:55,002 INFO L85 PathProgramCache]: Analyzing trace with hash 338605871, now seen corresponding path program 1 times [2024-01-27 23:06:55,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:55,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116471635] [2024-01-27 23:06:55,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:55,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:55,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:55,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116471635] [2024-01-27 23:06:55,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116471635] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:55,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:55,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:06:55,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954142036] [2024-01-27 23:06:55,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:55,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:55,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:55,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:55,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:55,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 102 [2024-01-27 23:06:55,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2024-01-27 23:06:55,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:55,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 102 [2024-01-27 23:06:55,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:55,389 INFO L124 PetriNetUnfolderBase]: 160/692 cut-off events. [2024-01-27 23:06:55,390 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-01-27 23:06:55,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 692 events. 160/692 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4257 event pairs, 126 based on Foata normal form. 133/766 useless extension candidates. Maximal degree in co-relation 1118. Up to 330 conditions per place. [2024-01-27 23:06:55,395 INFO L140 encePairwiseOnDemand]: 91/102 looper letters, 43 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-27 23:06:55,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 100 transitions, 312 flow [2024-01-27 23:06:55,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2024-01-27 23:06:55,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7107843137254902 [2024-01-27 23:06:55,400 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 208 flow. Second operand 4 states and 290 transitions. [2024-01-27 23:06:55,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 100 transitions, 312 flow [2024-01-27 23:06:55,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:06:55,404 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 190 flow [2024-01-27 23:06:55,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2024-01-27 23:06:55,405 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -9 predicate places. [2024-01-27 23:06:55,405 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 190 flow [2024-01-27 23:06:55,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2024-01-27 23:06:55,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:55,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:55,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:06:55,406 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:55,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:55,407 INFO L85 PathProgramCache]: Analyzing trace with hash 2126412980, now seen corresponding path program 1 times [2024-01-27 23:06:55,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:55,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173185727] [2024-01-27 23:06:55,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:55,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:55,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:55,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173185727] [2024-01-27 23:06:55,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173185727] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:55,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:55,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:06:55,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115812053] [2024-01-27 23:06:55,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:55,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:55,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:55,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:55,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:55,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 102 [2024-01-27 23:06:55,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-01-27 23:06:55,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:55,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 102 [2024-01-27 23:06:55,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:55,821 INFO L124 PetriNetUnfolderBase]: 425/1153 cut-off events. [2024-01-27 23:06:55,822 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-01-27 23:06:55,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 1153 events. 425/1153 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6766 event pairs, 357 based on Foata normal form. 91/1195 useless extension candidates. Maximal degree in co-relation 2069. Up to 755 conditions per place. [2024-01-27 23:06:55,828 INFO L140 encePairwiseOnDemand]: 85/102 looper letters, 55 selfloop transitions, 7 changer transitions 0/90 dead transitions. [2024-01-27 23:06:55,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 313 flow [2024-01-27 23:06:55,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:55,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 234 transitions. [2024-01-27 23:06:55,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5735294117647058 [2024-01-27 23:06:55,834 INFO L175 Difference]: Start difference. First operand has 91 places, 84 transitions, 190 flow. Second operand 4 states and 234 transitions. [2024-01-27 23:06:55,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 313 flow [2024-01-27 23:06:55,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 307 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 23:06:55,838 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 163 flow [2024-01-27 23:06:55,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2024-01-27 23:06:55,839 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -20 predicate places. [2024-01-27 23:06:55,839 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 163 flow [2024-01-27 23:06:55,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-01-27 23:06:55,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:55,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:55,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:06:55,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:55,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:55,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1496816607, now seen corresponding path program 1 times [2024-01-27 23:06:55,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:55,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636300944] [2024-01-27 23:06:55,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:55,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:55,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636300944] [2024-01-27 23:06:55,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636300944] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:55,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:55,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:06:55,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618451875] [2024-01-27 23:06:55,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:55,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:55,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:55,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:55,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:55,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 102 [2024-01-27 23:06:55,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-01-27 23:06:55,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:55,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 102 [2024-01-27 23:06:55,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:56,165 INFO L124 PetriNetUnfolderBase]: 302/1031 cut-off events. [2024-01-27 23:06:56,166 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-01-27 23:06:56,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 1031 events. 302/1031 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6370 event pairs, 91 based on Foata normal form. 15/1004 useless extension candidates. Maximal degree in co-relation 1771. Up to 314 conditions per place. [2024-01-27 23:06:56,171 INFO L140 encePairwiseOnDemand]: 89/102 looper letters, 53 selfloop transitions, 22 changer transitions 0/110 dead transitions. [2024-01-27 23:06:56,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 110 transitions, 403 flow [2024-01-27 23:06:56,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 23:06:56,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 23:06:56,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 312 transitions. [2024-01-27 23:06:56,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.611764705882353 [2024-01-27 23:06:56,173 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 163 flow. Second operand 5 states and 312 transitions. [2024-01-27 23:06:56,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 110 transitions, 403 flow [2024-01-27 23:06:56,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 110 transitions, 373 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 23:06:56,177 INFO L231 Difference]: Finished difference. Result has 85 places, 85 transitions, 271 flow [2024-01-27 23:06:56,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=85, PETRI_TRANSITIONS=85} [2024-01-27 23:06:56,178 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -15 predicate places. [2024-01-27 23:06:56,178 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 85 transitions, 271 flow [2024-01-27 23:06:56,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-01-27 23:06:56,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:56,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:56,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:06:56,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:56,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:56,180 INFO L85 PathProgramCache]: Analyzing trace with hash 2039132503, now seen corresponding path program 1 times [2024-01-27 23:06:56,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:56,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359405038] [2024-01-27 23:06:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:56,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:56,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:56,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359405038] [2024-01-27 23:06:56,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359405038] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:56,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:56,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:06:56,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429632195] [2024-01-27 23:06:56,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:56,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:56,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:56,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:56,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 102 [2024-01-27 23:06:56,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 85 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-01-27 23:06:56,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:56,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 102 [2024-01-27 23:06:56,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:56,442 INFO L124 PetriNetUnfolderBase]: 219/776 cut-off events. [2024-01-27 23:06:56,443 INFO L125 PetriNetUnfolderBase]: For 426/441 co-relation queries the response was YES. [2024-01-27 23:06:56,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 776 events. 219/776 cut-off events. For 426/441 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4506 event pairs, 38 based on Foata normal form. 58/826 useless extension candidates. Maximal degree in co-relation 1470. Up to 245 conditions per place. [2024-01-27 23:06:56,447 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 59 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2024-01-27 23:06:56,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 105 transitions, 431 flow [2024-01-27 23:06:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-01-27 23:06:56,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6544117647058824 [2024-01-27 23:06:56,449 INFO L175 Difference]: Start difference. First operand has 85 places, 85 transitions, 271 flow. Second operand 4 states and 267 transitions. [2024-01-27 23:06:56,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 105 transitions, 431 flow [2024-01-27 23:06:56,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 105 transitions, 429 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-27 23:06:56,453 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 239 flow [2024-01-27 23:06:56,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2024-01-27 23:06:56,454 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -15 predicate places. [2024-01-27 23:06:56,455 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 239 flow [2024-01-27 23:06:56,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-01-27 23:06:56,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:56,455 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] [2024-01-27 23:06:56,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:06:56,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:56,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:56,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1769774713, now seen corresponding path program 1 times [2024-01-27 23:06:56,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:56,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820014485] [2024-01-27 23:06:56,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:56,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:56,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820014485] [2024-01-27 23:06:56,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820014485] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:56,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:56,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 23:06:56,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501363019] [2024-01-27 23:06:56,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:56,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 23:06:56,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 23:06:56,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 23:06:56,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 102 [2024-01-27 23:06:56,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-01-27 23:06:56,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:56,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 102 [2024-01-27 23:06:56,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:56,789 INFO L124 PetriNetUnfolderBase]: 233/786 cut-off events. [2024-01-27 23:06:56,790 INFO L125 PetriNetUnfolderBase]: For 349/349 co-relation queries the response was YES. [2024-01-27 23:06:56,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 786 events. 233/786 cut-off events. For 349/349 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4482 event pairs, 82 based on Foata normal form. 63/832 useless extension candidates. Maximal degree in co-relation 1549. Up to 190 conditions per place. [2024-01-27 23:06:56,793 INFO L140 encePairwiseOnDemand]: 88/102 looper letters, 37 selfloop transitions, 12 changer transitions 31/108 dead transitions. [2024-01-27 23:06:56,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 108 transitions, 487 flow [2024-01-27 23:06:56,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 23:06:56,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 23:06:56,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 339 transitions. [2024-01-27 23:06:56,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.553921568627451 [2024-01-27 23:06:56,795 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 239 flow. Second operand 6 states and 339 transitions. [2024-01-27 23:06:56,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 108 transitions, 487 flow [2024-01-27 23:06:56,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 108 transitions, 453 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-27 23:06:56,800 INFO L231 Difference]: Finished difference. Result has 84 places, 62 transitions, 212 flow [2024-01-27 23:06:56,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=84, PETRI_TRANSITIONS=62} [2024-01-27 23:06:56,803 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -16 predicate places. [2024-01-27 23:06:56,803 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 212 flow [2024-01-27 23:06:56,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-01-27 23:06:56,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:56,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:56,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:06:56,805 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:56,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash -479734769, now seen corresponding path program 1 times [2024-01-27 23:06:56,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:56,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632542516] [2024-01-27 23:06:56,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:56,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:56,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632542516] [2024-01-27 23:06:56,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632542516] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:56,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:56,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 23:06:56,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531340287] [2024-01-27 23:06:56,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:56,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 23:06:56,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:56,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 23:06:56,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-27 23:06:56,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-27 23:06:56,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 62 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 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) [2024-01-27 23:06:56,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:56,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-27 23:06:56,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:57,018 INFO L124 PetriNetUnfolderBase]: 37/229 cut-off events. [2024-01-27 23:06:57,018 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-01-27 23:06:57,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 229 events. 37/229 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 804 event pairs, 16 based on Foata normal form. 21/241 useless extension candidates. Maximal degree in co-relation 413. Up to 65 conditions per place. [2024-01-27 23:06:57,019 INFO L140 encePairwiseOnDemand]: 93/102 looper letters, 20 selfloop transitions, 6 changer transitions 17/67 dead transitions. [2024-01-27 23:06:57,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 67 transitions, 282 flow [2024-01-27 23:06:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-01-27 23:06:57,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7573529411764706 [2024-01-27 23:06:57,021 INFO L175 Difference]: Start difference. First operand has 84 places, 62 transitions, 212 flow. Second operand 4 states and 309 transitions. [2024-01-27 23:06:57,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 67 transitions, 282 flow [2024-01-27 23:06:57,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 246 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-01-27 23:06:57,023 INFO L231 Difference]: Finished difference. Result has 70 places, 46 transitions, 148 flow [2024-01-27 23:06:57,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=70, PETRI_TRANSITIONS=46} [2024-01-27 23:06:57,023 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -30 predicate places. [2024-01-27 23:06:57,024 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 148 flow [2024-01-27 23:06:57,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 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) [2024-01-27 23:06:57,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:57,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:57,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 23:06:57,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 23:06:57,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:57,025 INFO L85 PathProgramCache]: Analyzing trace with hash -108936621, now seen corresponding path program 1 times [2024-01-27 23:06:57,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:57,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231482810] [2024-01-27 23:06:57,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:57,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:57,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:57,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231482810] [2024-01-27 23:06:57,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231482810] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:57,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:57,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 23:06:57,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431531731] [2024-01-27 23:06:57,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:57,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 23:06:57,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 23:06:57,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-27 23:06:57,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-27 23:06:57,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 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) [2024-01-27 23:06:57,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:57,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-27 23:06:57,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:57,300 INFO L124 PetriNetUnfolderBase]: 15/124 cut-off events. [2024-01-27 23:06:57,300 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-01-27 23:06:57,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 124 events. 15/124 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 391 event pairs, 0 based on Foata normal form. 6/128 useless extension candidates. Maximal degree in co-relation 221. Up to 43 conditions per place. [2024-01-27 23:06:57,301 INFO L140 encePairwiseOnDemand]: 99/102 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-01-27 23:06:57,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 230 flow [2024-01-27 23:06:57,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:57,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:57,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-01-27 23:06:57,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7426470588235294 [2024-01-27 23:06:57,303 INFO L175 Difference]: Start difference. First operand has 70 places, 46 transitions, 148 flow. Second operand 4 states and 303 transitions. [2024-01-27 23:06:57,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 230 flow [2024-01-27 23:06:57,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 23:06:57,305 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-01-27 23:06:57,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-01-27 23:06:57,307 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -48 predicate places. [2024-01-27 23:06:57,307 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-01-27 23:06:57,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 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) [2024-01-27 23:06:57,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 48 remaining) [2024-01-27 23:06:57,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 48 remaining) [2024-01-27 23:06:57,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 48 remaining) [2024-01-27 23:06:57,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 48 remaining) [2024-01-27 23:06:57,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 48 remaining) [2024-01-27 23:06:57,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 48 remaining) [2024-01-27 23:06:57,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 48 remaining) [2024-01-27 23:06:57,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 48 remaining) [2024-01-27 23:06:57,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 48 remaining) [2024-01-27 23:06:57,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 48 remaining) [2024-01-27 23:06:57,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 48 remaining) [2024-01-27 23:06:57,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 48 remaining) [2024-01-27 23:06:57,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 48 remaining) [2024-01-27 23:06:57,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 48 remaining) [2024-01-27 23:06:57,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 48 remaining) [2024-01-27 23:06:57,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 48 remaining) [2024-01-27 23:06:57,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 48 remaining) [2024-01-27 23:06:57,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 48 remaining) [2024-01-27 23:06:57,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 48 remaining) [2024-01-27 23:06:57,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 48 remaining) [2024-01-27 23:06:57,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (27 of 48 remaining) [2024-01-27 23:06:57,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 48 remaining) [2024-01-27 23:06:57,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (25 of 48 remaining) [2024-01-27 23:06:57,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 48 remaining) [2024-01-27 23:06:57,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 48 remaining) [2024-01-27 23:06:57,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 48 remaining) [2024-01-27 23:06:57,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (21 of 48 remaining) [2024-01-27 23:06:57,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 48 remaining) [2024-01-27 23:06:57,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 48 remaining) [2024-01-27 23:06:57,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 48 remaining) [2024-01-27 23:06:57,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 48 remaining) [2024-01-27 23:06:57,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 48 remaining) [2024-01-27 23:06:57,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 48 remaining) [2024-01-27 23:06:57,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 48 remaining) [2024-01-27 23:06:57,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 48 remaining) [2024-01-27 23:06:57,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 48 remaining) [2024-01-27 23:06:57,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 48 remaining) [2024-01-27 23:06:57,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 48 remaining) [2024-01-27 23:06:57,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 48 remaining) [2024-01-27 23:06:57,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 48 remaining) [2024-01-27 23:06:57,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 48 remaining) [2024-01-27 23:06:57,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 48 remaining) [2024-01-27 23:06:57,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 48 remaining) [2024-01-27 23:06:57,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 48 remaining) [2024-01-27 23:06:57,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 48 remaining) [2024-01-27 23:06:57,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 48 remaining) [2024-01-27 23:06:57,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 48 remaining) [2024-01-27 23:06:57,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 48 remaining) [2024-01-27 23:06:57,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 23:06:57,322 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:57,331 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:06:57,331 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:06:57,335 INFO L503 ceAbstractionStarter]: Automizer considered 26 witness invariants [2024-01-27 23:06:57,335 INFO L504 ceAbstractionStarter]: WitnessConsidered=26 [2024-01-27 23:06:57,337 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:06:57 BasicIcfg [2024-01-27 23:06:57,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:06:57,337 INFO L158 Benchmark]: Toolchain (without parser) took 4679.49ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 134.5MB in the beginning and 82.8MB in the end (delta: 51.7MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. [2024-01-27 23:06:57,338 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 86.9MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:06:57,338 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 172.0MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:06:57,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.59ms. Allocated memory is still 172.0MB. Free memory was 133.8MB in the beginning and 110.0MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-27 23:06:57,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.60ms. Allocated memory is still 172.0MB. Free memory was 110.0MB in the beginning and 107.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:06:57,340 INFO L158 Benchmark]: Boogie Preprocessor took 46.94ms. Allocated memory is still 172.0MB. Free memory was 107.9MB in the beginning and 105.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:06:57,340 INFO L158 Benchmark]: RCFGBuilder took 695.81ms. Allocated memory is still 172.0MB. Free memory was 105.1MB in the beginning and 119.9MB in the end (delta: -14.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 23:06:57,341 INFO L158 Benchmark]: TraceAbstraction took 3275.45ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 118.8MB in the beginning and 82.8MB in the end (delta: 36.0MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2024-01-27 23:06:57,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 86.9MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.20ms. Allocated memory is still 172.0MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 598.59ms. Allocated memory is still 172.0MB. Free memory was 133.8MB in the beginning and 110.0MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.60ms. Allocated memory is still 172.0MB. Free memory was 110.0MB in the beginning and 107.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.94ms. Allocated memory is still 172.0MB. Free memory was 107.9MB in the beginning and 105.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 695.81ms. Allocated memory is still 172.0MB. Free memory was 105.1MB in the beginning and 119.9MB in the end (delta: -14.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3275.45ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 118.8MB in the beginning and 82.8MB in the end (delta: 36.0MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 702]: 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: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 706]: 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: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: 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, 151 locations, 48 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 727 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 473 mSDsluCounter, 145 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 948 IncrementalHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 91 mSDtfsCounter, 948 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=4, InterpolantAutomatonStates: 34, 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, 0.8s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 569 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 29 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 23:06:57,380 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