./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_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_20-publish-regression_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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_20-publish-regression_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_20-publish-regression_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-2755261-m [2024-01-26 15:18:26,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:18:26,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:18:26,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:18:26,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:18:26,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:18:26,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:18:26,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:18:26,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:18:26,526 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:18:26,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:18:26,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:18:26,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:18:26,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:18:26,528 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:18:26,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:18:26,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:18:26,529 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:18:26,529 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:18:26,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:18:26,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:18:26,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:18:26,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:18:26,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:18:26,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:18:26,530 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:18:26,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:18:26,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:18:26,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:18:26,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:18:26,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:18:26,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:18:26,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:26,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:18:26,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:18:26,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:18:26,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:18:26,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:18:26,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:18:26,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:18:26,534 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:18:26,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:18:26,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:18:26,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:18:26,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:18:26,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:18:26,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:18:26,767 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:18:26,767 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:18:26,768 INFO L431 ainManager$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_20-publish-regression_true.yml/witness.yml [2024-01-26 15:18:26,872 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:18:26,872 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:18:26,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2024-01-26 15:18:27,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:18:28,034 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:18:28,034 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2024-01-26 15:18:28,043 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd94f290/0672b5f757b943c3bfc61522fb23961a/FLAGf494c4353 [2024-01-26 15:18:28,053 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd94f290/0672b5f757b943c3bfc61522fb23961a [2024-01-26 15:18:28,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:18:28,058 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:18:28,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:28,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:18:28,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:18:28,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:26" (1/2) ... [2024-01-26 15:18:28,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b59204 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:28, skipping insertion in model container [2024-01-26 15:18:28,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:26" (1/2) ... [2024-01-26 15:18:28,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a385a07 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:28, skipping insertion in model container [2024-01-26 15:18:28,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:28" (2/2) ... [2024-01-26 15:18:28,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b59204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28, skipping insertion in model container [2024-01-26 15:18:28,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:28" (2/2) ... [2024-01-26 15:18:28,079 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:18:28,114 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:18:28,115 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-26 15:18:28,116 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] glob1 == 0 [2024-01-26 15:18:28,116 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 5 [2024-01-26 15:18:28,116 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 5 [2024-01-26 15:18:28,116 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] glob1 == 0 [2024-01-26 15:18:28,116 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-26 15:18:28,116 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-26 15:18:28,116 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] glob1 == 5 [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == 0 [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] glob1 == 0 [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == 5 [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-26 15:18:28,117 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] glob1 == 0 [2024-01-26 15:18:28,118 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-26 15:18:28,118 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] glob1 == 0 [2024-01-26 15:18:28,118 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == 5 [2024-01-26 15:18:28,118 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-26 15:18:28,118 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-01-26 15:18:28,119 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] glob1 == 5 [2024-01-26 15:18:28,119 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-26 15:18:28,119 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] glob1 == 0 [2024-01-26 15:18:28,164 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:18:28,309 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_20-publish-regression_true.i[1095,1108] [2024-01-26 15:18:28,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:28,433 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:18:28,444 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_20-publish-regression_true.i[1095,1108] [2024-01-26 15:18:28,444 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 [2024-01-26 15:18:28,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:28,543 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:18:28,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28 WrapperNode [2024-01-26 15:18:28,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:28,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:28,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:18:28,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:18:28,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,574 INFO L138 Inliner]: procedures = 163, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2024-01-26 15:18:28,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:28,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:18:28,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:18:28,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:18:28,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,598 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,608 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-26 15:18:28,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:18:28,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:18:28,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:18:28,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:18:28,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (1/1) ... [2024-01-26 15:18:28,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:28,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:18:28,669 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) [2024-01-26 15:18:28,674 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 [2024-01-26 15:18:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:18:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:18:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:18:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-26 15:18:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:18:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:18:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:18:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-26 15:18:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-26 15:18:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:18:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:18:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-26 15:18:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-26 15:18:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:18:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:18:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:18:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:18:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-26 15:18:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-26 15:18:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:18:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:18:28,706 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:18:28,817 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:18:28,819 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:18:28,968 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:18:28,968 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:18:29,028 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:18:29,028 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:18:29,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:29 BoogieIcfgContainer [2024-01-26 15:18:29,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:18:29,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:18:29,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:18:29,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:18:29,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:26" (1/4) ... [2024-01-26 15:18:29,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5f70ca and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:29, skipping insertion in model container [2024-01-26 15:18:29,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:18:28" (2/4) ... [2024-01-26 15:18:29,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5f70ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:29, skipping insertion in model container [2024-01-26 15:18:29,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:28" (3/4) ... [2024-01-26 15:18:29,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5f70ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:29, skipping insertion in model container [2024-01-26 15:18:29,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:29" (4/4) ... [2024-01-26 15:18:29,038 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2024-01-26 15:18:29,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:18:29,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-01-26 15:18:29,051 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:18:29,086 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-26 15:18:29,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 171 flow [2024-01-26 15:18:29,130 INFO L124 PetriNetUnfolderBase]: 3/81 cut-off events. [2024-01-26 15:18:29,130 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-26 15:18:29,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 3/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2024-01-26 15:18:29,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 82 transitions, 171 flow [2024-01-26 15:18:29,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 79 transitions, 161 flow [2024-01-26 15:18:29,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:18:29,147 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;@596182dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:18:29,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-01-26 15:18:29,149 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:18:29,149 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:18:29,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:29,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:29,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:18:29,150 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 42 more)] === [2024-01-26 15:18:29,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:29,154 INFO L85 PathProgramCache]: Analyzing trace with hash 9801, now seen corresponding path program 1 times [2024-01-26 15:18:29,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:29,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236154598] [2024-01-26 15:18:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:29,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:29,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:29,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236154598] [2024-01-26 15:18:29,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236154598] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:29,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:29,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:18:29,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359136595] [2024-01-26 15:18:29,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:29,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:29,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:29,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:29,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:29,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 82 [2024-01-26 15:18:29,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2024-01-26 15:18:29,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:29,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 82 [2024-01-26 15:18:29,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:29,614 INFO L124 PetriNetUnfolderBase]: 145/633 cut-off events. [2024-01-26 15:18:29,614 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:29,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 633 events. 145/633 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3686 event pairs, 77 based on Foata normal form. 60/597 useless extension candidates. Maximal degree in co-relation 981. Up to 227 conditions per place. [2024-01-26 15:18:29,621 INFO L140 encePairwiseOnDemand]: 62/82 looper letters, 37 selfloop transitions, 5 changer transitions 0/81 dead transitions. [2024-01-26 15:18:29,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 249 flow [2024-01-26 15:18:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-01-26 15:18:29,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7276422764227642 [2024-01-26 15:18:29,634 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 161 flow. Second operand 3 states and 179 transitions. [2024-01-26 15:18:29,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 249 flow [2024-01-26 15:18:29,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 81 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:29,644 INFO L231 Difference]: Finished difference. Result has 77 places, 73 transitions, 186 flow [2024-01-26 15:18:29,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=77, PETRI_TRANSITIONS=73} [2024-01-26 15:18:29,649 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -3 predicate places. [2024-01-26 15:18:29,649 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 73 transitions, 186 flow [2024-01-26 15:18:29,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2024-01-26 15:18:29,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:29,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-26 15:18:29,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:18:29,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 42 more)] === [2024-01-26 15:18:29,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:29,652 INFO L85 PathProgramCache]: Analyzing trace with hash 9428097, now seen corresponding path program 1 times [2024-01-26 15:18:29,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:29,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897509150] [2024-01-26 15:18:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:29,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:29,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:29,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897509150] [2024-01-26 15:18:29,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897509150] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:29,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:29,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:29,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645278386] [2024-01-26 15:18:29,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:29,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:29,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:29,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:29,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:29,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 82 [2024-01-26 15:18:29,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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) [2024-01-26 15:18:29,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:29,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 82 [2024-01-26 15:18:29,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:29,959 INFO L124 PetriNetUnfolderBase]: 166/648 cut-off events. [2024-01-26 15:18:29,960 INFO L125 PetriNetUnfolderBase]: For 96/109 co-relation queries the response was YES. [2024-01-26 15:18:29,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 648 events. 166/648 cut-off events. For 96/109 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3710 event pairs, 68 based on Foata normal form. 4/584 useless extension candidates. Maximal degree in co-relation 1211. Up to 195 conditions per place. [2024-01-26 15:18:29,964 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 53 selfloop transitions, 12 changer transitions 1/99 dead transitions. [2024-01-26 15:18:29,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 99 transitions, 388 flow [2024-01-26 15:18:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:29,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:29,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 249 transitions. [2024-01-26 15:18:29,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6073170731707317 [2024-01-26 15:18:29,969 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 186 flow. Second operand 5 states and 249 transitions. [2024-01-26 15:18:29,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 99 transitions, 388 flow [2024-01-26 15:18:29,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 99 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:29,974 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 202 flow [2024-01-26 15:18:29,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=202, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2024-01-26 15:18:29,975 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -5 predicate places. [2024-01-26 15:18:29,975 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 202 flow [2024-01-26 15:18:29,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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) [2024-01-26 15:18:29,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:29,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:29,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:18:29,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 42 more)] === [2024-01-26 15:18:29,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1208478478, now seen corresponding path program 1 times [2024-01-26 15:18:29,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:29,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641564667] [2024-01-26 15:18:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:30,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:30,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641564667] [2024-01-26 15:18:30,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641564667] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:30,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:30,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:30,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091394275] [2024-01-26 15:18:30,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:30,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:30,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:30,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:30,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:30,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 82 [2024-01-26 15:18:30,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:30,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:30,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 82 [2024-01-26 15:18:30,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:30,247 INFO L124 PetriNetUnfolderBase]: 100/505 cut-off events. [2024-01-26 15:18:30,247 INFO L125 PetriNetUnfolderBase]: For 119/121 co-relation queries the response was YES. [2024-01-26 15:18:30,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 505 events. 100/505 cut-off events. For 119/121 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2740 event pairs, 21 based on Foata normal form. 87/577 useless extension candidates. Maximal degree in co-relation 886. Up to 218 conditions per place. [2024-01-26 15:18:30,250 INFO L140 encePairwiseOnDemand]: 70/82 looper letters, 30 selfloop transitions, 2 changer transitions 2/68 dead transitions. [2024-01-26 15:18:30,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 68 transitions, 268 flow [2024-01-26 15:18:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 215 transitions. [2024-01-26 15:18:30,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6554878048780488 [2024-01-26 15:18:30,252 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 202 flow. Second operand 4 states and 215 transitions. [2024-01-26 15:18:30,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 68 transitions, 268 flow [2024-01-26 15:18:30,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 268 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-26 15:18:30,255 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 176 flow [2024-01-26 15:18:30,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2024-01-26 15:18:30,256 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -12 predicate places. [2024-01-26 15:18:30,257 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 176 flow [2024-01-26 15:18:30,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:30,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:30,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:30,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:18:30,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 42 more)] === [2024-01-26 15:18:30,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:30,259 INFO L85 PathProgramCache]: Analyzing trace with hash 495021975, now seen corresponding path program 1 times [2024-01-26 15:18:30,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:30,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997823063] [2024-01-26 15:18:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:30,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:30,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:30,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997823063] [2024-01-26 15:18:30,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997823063] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:30,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:30,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:30,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117805416] [2024-01-26 15:18:30,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:30,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:30,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:30,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 82 [2024-01-26 15:18:30,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-01-26 15:18:30,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:30,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 82 [2024-01-26 15:18:30,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:30,404 INFO L124 PetriNetUnfolderBase]: 110/401 cut-off events. [2024-01-26 15:18:30,404 INFO L125 PetriNetUnfolderBase]: For 134/139 co-relation queries the response was YES. [2024-01-26 15:18:30,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 401 events. 110/401 cut-off events. For 134/139 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1814 event pairs, 70 based on Foata normal form. 48/429 useless extension candidates. Maximal degree in co-relation 793. Up to 159 conditions per place. [2024-01-26 15:18:30,406 INFO L140 encePairwiseOnDemand]: 74/82 looper letters, 32 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-01-26 15:18:30,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 234 flow [2024-01-26 15:18:30,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:30,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2024-01-26 15:18:30,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6991869918699187 [2024-01-26 15:18:30,407 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 176 flow. Second operand 3 states and 172 transitions. [2024-01-26 15:18:30,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 234 flow [2024-01-26 15:18:30,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 58 transitions, 231 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:30,410 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 159 flow [2024-01-26 15:18:30,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2024-01-26 15:18:30,412 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -16 predicate places. [2024-01-26 15:18:30,412 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 159 flow [2024-01-26 15:18:30,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-01-26 15:18:30,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:30,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:30,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:18:30,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 42 more)] === [2024-01-26 15:18:30,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:30,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1987122258, now seen corresponding path program 1 times [2024-01-26 15:18:30,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:30,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483884372] [2024-01-26 15:18:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:30,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:30,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483884372] [2024-01-26 15:18:30,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483884372] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:30,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:30,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:18:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74109367] [2024-01-26 15:18:30,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:30,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-26 15:18:30,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:30,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-26 15:18:30,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-26 15:18:30,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 82 [2024-01-26 15:18:30,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2024-01-26 15:18:30,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:30,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 82 [2024-01-26 15:18:30,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:30,627 INFO L124 PetriNetUnfolderBase]: 31/183 cut-off events. [2024-01-26 15:18:30,628 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-01-26 15:18:30,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 183 events. 31/183 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 526 event pairs, 10 based on Foata normal form. 11/187 useless extension candidates. Maximal degree in co-relation 322. Up to 66 conditions per place. [2024-01-26 15:18:30,629 INFO L140 encePairwiseOnDemand]: 77/82 looper letters, 15 selfloop transitions, 4 changer transitions 14/54 dead transitions. [2024-01-26 15:18:30,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 199 flow [2024-01-26 15:18:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-01-26 15:18:30,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2024-01-26 15:18:30,630 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 159 flow. Second operand 4 states and 248 transitions. [2024-01-26 15:18:30,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 199 flow [2024-01-26 15:18:30,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 163 flow, removed 6 selfloop flow, removed 7 redundant places. [2024-01-26 15:18:30,631 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 87 flow [2024-01-26 15:18:30,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2024-01-26 15:18:30,632 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -23 predicate places. [2024-01-26 15:18:30,632 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 87 flow [2024-01-26 15:18:30,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2024-01-26 15:18:30,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:30,633 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] [2024-01-26 15:18:30,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:18:30,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 42 more)] === [2024-01-26 15:18:30,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1228523969, now seen corresponding path program 1 times [2024-01-26 15:18:30,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:30,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248989418] [2024-01-26 15:18:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:30,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:30,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:30,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248989418] [2024-01-26 15:18:30,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248989418] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:30,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:30,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:18:30,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270144816] [2024-01-26 15:18:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:30,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:30,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:30,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 82 [2024-01-26 15:18:30,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:30,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:30,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 82 [2024-01-26 15:18:30,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:30,754 INFO L124 PetriNetUnfolderBase]: 20/105 cut-off events. [2024-01-26 15:18:30,754 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-26 15:18:30,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 105 events. 20/105 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 209 event pairs, 6 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 173. Up to 31 conditions per place. [2024-01-26 15:18:30,754 INFO L140 encePairwiseOnDemand]: 79/82 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-01-26 15:18:30,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 143 flow [2024-01-26 15:18:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:30,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:30,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2024-01-26 15:18:30,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5945121951219512 [2024-01-26 15:18:30,756 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 87 flow. Second operand 4 states and 195 transitions. [2024-01-26 15:18:30,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 143 flow [2024-01-26 15:18:30,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 139 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:30,757 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-01-26 15:18:30,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-01-26 15:18:30,757 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -36 predicate places. [2024-01-26 15:18:30,757 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-01-26 15:18:30,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:30,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 45 remaining) [2024-01-26 15:18:30,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (43 of 45 remaining) [2024-01-26 15:18:30,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 45 remaining) [2024-01-26 15:18:30,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 45 remaining) [2024-01-26 15:18:30,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (40 of 45 remaining) [2024-01-26 15:18:30,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 45 remaining) [2024-01-26 15:18:30,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-01-26 15:18:30,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 45 remaining) [2024-01-26 15:18:30,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 45 remaining) [2024-01-26 15:18:30,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 45 remaining) [2024-01-26 15:18:30,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 45 remaining) [2024-01-26 15:18:30,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 45 remaining) [2024-01-26 15:18:30,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 45 remaining) [2024-01-26 15:18:30,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 45 remaining) [2024-01-26 15:18:30,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 45 remaining) [2024-01-26 15:18:30,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 45 remaining) [2024-01-26 15:18:30,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 45 remaining) [2024-01-26 15:18:30,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 45 remaining) [2024-01-26 15:18:30,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONERROR_FUNCTION (26 of 45 remaining) [2024-01-26 15:18:30,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 45 remaining) [2024-01-26 15:18:30,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 45 remaining) [2024-01-26 15:18:30,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 45 remaining) [2024-01-26 15:18:30,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 45 remaining) [2024-01-26 15:18:30,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 45 remaining) [2024-01-26 15:18:30,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 45 remaining) [2024-01-26 15:18:30,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 45 remaining) [2024-01-26 15:18:30,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 45 remaining) [2024-01-26 15:18:30,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 45 remaining) [2024-01-26 15:18:30,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 45 remaining) [2024-01-26 15:18:30,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 45 remaining) [2024-01-26 15:18:30,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 45 remaining) [2024-01-26 15:18:30,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 45 remaining) [2024-01-26 15:18:30,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 45 remaining) [2024-01-26 15:18:30,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 45 remaining) [2024-01-26 15:18:30,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 45 remaining) [2024-01-26 15:18:30,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 45 remaining) [2024-01-26 15:18:30,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 45 remaining) [2024-01-26 15:18:30,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONERROR_FUNCTION (7 of 45 remaining) [2024-01-26 15:18:30,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 45 remaining) [2024-01-26 15:18:30,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 45 remaining) [2024-01-26 15:18:30,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 45 remaining) [2024-01-26 15:18:30,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 45 remaining) [2024-01-26 15:18:30,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 45 remaining) [2024-01-26 15:18:30,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 45 remaining) [2024-01-26 15:18:30,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 45 remaining) [2024-01-26 15:18:30,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:18:30,767 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-26 15:18:30,771 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:18:30,771 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:18:30,774 INFO L503 ceAbstractionStarter]: Automizer considered 22 witness invariants [2024-01-26 15:18:30,775 INFO L504 ceAbstractionStarter]: WitnessConsidered=22 [2024-01-26 15:18:30,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:18:30 BasicIcfg [2024-01-26 15:18:30,775 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:18:30,776 INFO L158 Benchmark]: Toolchain (without parser) took 2717.71ms. Allocated memory was 119.5MB in the beginning and 203.4MB in the end (delta: 83.9MB). Free memory was 44.5MB in the beginning and 146.9MB in the end (delta: -102.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:30,776 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 119.5MB. Free memory was 79.4MB in the beginning and 79.2MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:30,776 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 119.5MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:30,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.30ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 44.3MB in the beginning and 115.9MB in the end (delta: -71.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-01-26 15:18:30,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.63ms. Allocated memory is still 165.7MB. Free memory was 115.9MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:30,777 INFO L158 Benchmark]: Boogie Preprocessor took 55.68ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:30,777 INFO L158 Benchmark]: RCFGBuilder took 397.33ms. Allocated memory is still 165.7MB. Free memory was 111.8MB in the beginning and 82.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-26 15:18:30,777 INFO L158 Benchmark]: TraceAbstraction took 1745.63ms. Allocated memory was 165.7MB in the beginning and 203.4MB in the end (delta: 37.7MB). Free memory was 81.4MB in the beginning and 146.9MB in the end (delta: -65.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:30,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 119.5MB. Free memory was 79.4MB in the beginning and 79.2MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 119.5MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.30ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 44.3MB in the beginning and 115.9MB in the end (delta: -71.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.63ms. Allocated memory is still 165.7MB. Free memory was 115.9MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.68ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.33ms. Allocated memory is still 165.7MB. Free memory was 111.8MB in the beginning and 82.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1745.63ms. Allocated memory was 165.7MB in the beginning and 203.4MB in the end (delta: 37.7MB). Free memory was 81.4MB in the beginning and 146.9MB in the end (delta: -65.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 699]: 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: 685]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 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: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 135 locations, 45 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: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 259 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 451 IncrementalHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 30 mSDtfsCounter, 451 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-26 15:18:30,801 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