./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe033_tso.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/pthread-wmm/safe033_tso.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe033_tso.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-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 21:54:25,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 21:54:25,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 21:54:25,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 21:54:25,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 21:54:25,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 21:54:25,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 21:54:25,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 21:54:25,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 21:54:25,857 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 21:54:25,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 21:54:25,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 21:54:25,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 21:54:25,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 21:54:25,860 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 21:54:25,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 21:54:25,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 21:54:25,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 21:54:25,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 21:54:25,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 21:54:25,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 21:54:25,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 21:54:25,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 21:54:25,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 21:54:25,866 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 21:54:25,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 21:54:25,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 21:54:25,867 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 21:54:25,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 21:54:25,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 21:54:25,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 21:54:25,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 21:54:25,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:54:25,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 21:54:25,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 21:54:25,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 21:54:25,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 21:54:25,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 21:54:25,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 21:54:25,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 21:54:25,871 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 21:54:25,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 21:54:25,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 21:54:25,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 21:54:26,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 21:54:26,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 21:54:26,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 21:54:26,136 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 21:54:26,137 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 21:54:26,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe033_tso.yml/witness.yml [2024-06-27 21:54:26,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 21:54:26,250 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 21:54:26,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2024-06-27 21:54:27,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 21:54:27,628 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 21:54:27,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2024-06-27 21:54:27,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8417b147e/447a561062e0451abd4ecf02d1104704/FLAG9b0a4a661 [2024-06-27 21:54:27,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8417b147e/447a561062e0451abd4ecf02d1104704 [2024-06-27 21:54:27,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 21:54:27,657 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 21:54:27,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 21:54:27,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 21:54:27,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 21:54:27,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:54:26" (1/2) ... [2024-06-27 21:54:27,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75542abb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:54:27, skipping insertion in model container [2024-06-27 21:54:27,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:54:26" (1/2) ... [2024-06-27 21:54:27,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28629178 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:54:27, skipping insertion in model container [2024-06-27 21:54:27,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:54:27" (2/2) ... [2024-06-27 21:54:27,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75542abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:27, skipping insertion in model container [2024-06-27 21:54:27,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:54:27" (2/2) ... [2024-06-27 21:54:27,670 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 21:54:27,697 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 21:54:27,698 INFO L97 edCorrectnessWitness]: Location invariant before [L763-L763] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-27 21:54:27,698 INFO L97 edCorrectnessWitness]: Location invariant before [L764-L764] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-27 21:54:27,699 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 21:54:27,699 INFO L106 edCorrectnessWitness]: ghost_update [L761-L761] multithreaded = 1; [2024-06-27 21:54:27,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 21:54:27,934 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i[945,958] [2024-06-27 21:54:28,099 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:54:28,107 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 21:54:28,145 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i[945,958] Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 21:54:28,189 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:54:28,225 INFO L206 MainTranslator]: Completed translation [2024-06-27 21:54:28,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28 WrapperNode [2024-06-27 21:54:28,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 21:54:28,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 21:54:28,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 21:54:28,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 21:54:28,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,265 INFO L138 Inliner]: procedures = 174, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-06-27 21:54:28,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 21:54:28,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 21:54:28,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 21:54:28,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 21:54:28,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,310 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 21:54:28,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 21:54:28,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 21:54:28,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 21:54:28,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 21:54:28,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (1/1) ... [2024-06-27 21:54:28,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:54:28,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 21:54:28,393 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) [2024-06-27 21:54:28,416 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 [2024-06-27 21:54:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 21:54:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 21:54:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 21:54:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 21:54:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 21:54:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 21:54:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 21:54:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 21:54:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 21:54:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 21:54:28,431 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 21:54:28,533 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 21:54:28,535 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 21:54:28,654 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 21:54:28,655 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 21:54:28,724 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 21:54:28,724 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 21:54:28,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:54:28 BoogieIcfgContainer [2024-06-27 21:54:28,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 21:54:28,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 21:54:28,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 21:54:28,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 21:54:28,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:54:26" (1/4) ... [2024-06-27 21:54:28,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce85bc4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 09:54:28, skipping insertion in model container [2024-06-27 21:54:28,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 09:54:27" (2/4) ... [2024-06-27 21:54:28,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce85bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:54:28, skipping insertion in model container [2024-06-27 21:54:28,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:28" (3/4) ... [2024-06-27 21:54:28,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce85bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:54:28, skipping insertion in model container [2024-06-27 21:54:28,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:54:28" (4/4) ... [2024-06-27 21:54:28,731 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2024-06-27 21:54:28,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 21:54:28,744 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 21:54:28,745 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 21:54:28,784 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 21:54:28,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 35 transitions, 78 flow [2024-06-27 21:54:28,843 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-06-27 21:54:28,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:54:28,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 33 events. 1/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-06-27 21:54:28,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 35 transitions, 78 flow [2024-06-27 21:54:28,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 30 transitions, 66 flow [2024-06-27 21:54:28,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 21:54:28,862 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;@1208fb01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 21:54:28,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-27 21:54:28,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 21:54:28,866 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 21:54:28,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:54:28,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:28,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 21:54:28,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:28,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:28,872 INFO L85 PathProgramCache]: Analyzing trace with hash 178530894, now seen corresponding path program 1 times [2024-06-27 21:54:28,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:28,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817144801] [2024-06-27 21:54:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:28,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:29,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:29,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:29,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817144801] [2024-06-27 21:54:29,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817144801] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:29,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:29,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 21:54:29,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530740993] [2024-06-27 21:54:29,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:29,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 21:54:29,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:29,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 21:54:29,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 21:54:29,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 35 [2024-06-27 21:54:29,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-06-27 21:54:29,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:29,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 35 [2024-06-27 21:54:29,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:29,313 INFO L124 PetriNetUnfolderBase]: 30/100 cut-off events. [2024-06-27 21:54:29,314 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 21:54:29,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 100 events. 30/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 400 event pairs, 20 based on Foata normal form. 2/93 useless extension candidates. Maximal degree in co-relation 164. Up to 45 conditions per place. [2024-06-27 21:54:29,317 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 14 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2024-06-27 21:54:29,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 104 flow [2024-06-27 21:54:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 21:54:29,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 21:54:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-06-27 21:54:29,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2024-06-27 21:54:29,330 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 66 flow. Second operand 3 states and 78 transitions. [2024-06-27 21:54:29,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 104 flow [2024-06-27 21:54:29,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:54:29,335 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 70 flow [2024-06-27 21:54:29,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-06-27 21:54:29,340 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2024-06-27 21:54:29,340 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 70 flow [2024-06-27 21:54:29,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-06-27 21:54:29,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:29,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:29,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 21:54:29,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:29,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:29,344 INFO L85 PathProgramCache]: Analyzing trace with hash 942246249, now seen corresponding path program 1 times [2024-06-27 21:54:29,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:29,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578696422] [2024-06-27 21:54:29,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:29,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:29,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:29,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578696422] [2024-06-27 21:54:29,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578696422] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:29,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:29,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 21:54:29,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671196931] [2024-06-27 21:54:29,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:29,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:54:29,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:54:29,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:54:29,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2024-06-27 21:54:29,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-06-27 21:54:29,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:29,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2024-06-27 21:54:29,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:29,538 INFO L124 PetriNetUnfolderBase]: 50/163 cut-off events. [2024-06-27 21:54:29,539 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-06-27 21:54:29,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 163 events. 50/163 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 732 event pairs, 14 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 292. Up to 79 conditions per place. [2024-06-27 21:54:29,541 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 21 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2024-06-27 21:54:29,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 41 transitions, 149 flow [2024-06-27 21:54:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:29,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-06-27 21:54:29,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-06-27 21:54:29,546 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 70 flow. Second operand 4 states and 102 transitions. [2024-06-27 21:54:29,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 41 transitions, 149 flow [2024-06-27 21:54:29,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 41 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:54:29,550 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 88 flow [2024-06-27 21:54:29,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-06-27 21:54:29,551 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2024-06-27 21:54:29,552 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 88 flow [2024-06-27 21:54:29,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-06-27 21:54:29,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:29,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:29,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 21:54:29,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:29,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:29,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1235258543, now seen corresponding path program 1 times [2024-06-27 21:54:29,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:29,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431277450] [2024-06-27 21:54:29,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:29,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:29,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:29,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431277450] [2024-06-27 21:54:29,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431277450] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:29,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:29,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:54:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451735702] [2024-06-27 21:54:29,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:29,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:29,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:29,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:29,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2024-06-27 21:54:29,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:29,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:29,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2024-06-27 21:54:29,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:29,775 INFO L124 PetriNetUnfolderBase]: 62/207 cut-off events. [2024-06-27 21:54:29,775 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-06-27 21:54:29,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 207 events. 62/207 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1102 event pairs, 14 based on Foata normal form. 4/201 useless extension candidates. Maximal degree in co-relation 402. Up to 50 conditions per place. [2024-06-27 21:54:29,779 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 20 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2024-06-27 21:54:29,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 40 transitions, 154 flow [2024-06-27 21:54:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2024-06-27 21:54:29,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-06-27 21:54:29,786 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 88 flow. Second operand 4 states and 100 transitions. [2024-06-27 21:54:29,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 40 transitions, 154 flow [2024-06-27 21:54:29,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 21:54:29,789 INFO L231 Difference]: Finished difference. Result has 43 places, 31 transitions, 98 flow [2024-06-27 21:54:29,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=43, PETRI_TRANSITIONS=31} [2024-06-27 21:54:29,790 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 6 predicate places. [2024-06-27 21:54:29,790 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 98 flow [2024-06-27 21:54:29,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:29,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:29,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:29,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 21:54:29,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:29,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:29,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1935352281, now seen corresponding path program 2 times [2024-06-27 21:54:29,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:29,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949790937] [2024-06-27 21:54:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:29,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:29,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:29,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949790937] [2024-06-27 21:54:29,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949790937] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:29,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:29,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:54:29,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399366117] [2024-06-27 21:54:29,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:29,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:54:29,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:29,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:54:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:54:29,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2024-06-27 21:54:29,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:29,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:29,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2024-06-27 21:54:29,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:29,915 INFO L124 PetriNetUnfolderBase]: 58/199 cut-off events. [2024-06-27 21:54:29,916 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-06-27 21:54:29,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 199 events. 58/199 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1029 event pairs, 12 based on Foata normal form. 4/195 useless extension candidates. Maximal degree in co-relation 391. Up to 50 conditions per place. [2024-06-27 21:54:29,917 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 20 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2024-06-27 21:54:29,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 154 flow [2024-06-27 21:54:29,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-06-27 21:54:29,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2024-06-27 21:54:29,919 INFO L175 Difference]: Start difference. First operand has 43 places, 31 transitions, 98 flow. Second operand 4 states and 99 transitions. [2024-06-27 21:54:29,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 154 flow [2024-06-27 21:54:29,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 138 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-27 21:54:29,921 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 80 flow [2024-06-27 21:54:29,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-06-27 21:54:29,922 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2024-06-27 21:54:29,922 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 80 flow [2024-06-27 21:54:29,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:29,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:29,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:29,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 21:54:29,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:29,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash 646671818, now seen corresponding path program 1 times [2024-06-27 21:54:29,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:29,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935431017] [2024-06-27 21:54:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:29,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935431017] [2024-06-27 21:54:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935431017] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:30,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:30,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:54:30,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568066080] [2024-06-27 21:54:30,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:30,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:54:30,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:30,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:54:30,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:54:30,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 35 [2024-06-27 21:54:30,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:30,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:30,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 35 [2024-06-27 21:54:30,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:30,201 INFO L124 PetriNetUnfolderBase]: 106/295 cut-off events. [2024-06-27 21:54:30,202 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 21:54:30,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 295 events. 106/295 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1506 event pairs, 12 based on Foata normal form. 17/297 useless extension candidates. Maximal degree in co-relation 518. Up to 109 conditions per place. [2024-06-27 21:54:30,205 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 19 selfloop transitions, 4 changer transitions 1/41 dead transitions. [2024-06-27 21:54:30,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 41 transitions, 152 flow [2024-06-27 21:54:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:30,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-06-27 21:54:30,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7571428571428571 [2024-06-27 21:54:30,208 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 80 flow. Second operand 4 states and 106 transitions. [2024-06-27 21:54:30,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 41 transitions, 152 flow [2024-06-27 21:54:30,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 147 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:54:30,210 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 101 flow [2024-06-27 21:54:30,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2024-06-27 21:54:30,216 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2024-06-27 21:54:30,216 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 101 flow [2024-06-27 21:54:30,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:30,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:30,221 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] [2024-06-27 21:54:30,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 21:54:30,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:30,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash 385741655, now seen corresponding path program 1 times [2024-06-27 21:54:30,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:30,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529819316] [2024-06-27 21:54:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:30,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:30,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529819316] [2024-06-27 21:54:30,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529819316] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:30,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:30,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:54:30,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827904851] [2024-06-27 21:54:30,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:30,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:30,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:30,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 35 [2024-06-27 21:54:30,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2024-06-27 21:54:30,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:30,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 35 [2024-06-27 21:54:30,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:30,435 INFO L124 PetriNetUnfolderBase]: 74/206 cut-off events. [2024-06-27 21:54:30,435 INFO L125 PetriNetUnfolderBase]: For 81/103 co-relation queries the response was YES. [2024-06-27 21:54:30,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 206 events. 74/206 cut-off events. For 81/103 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 786 event pairs, 4 based on Foata normal form. 20/214 useless extension candidates. Maximal degree in co-relation 464. Up to 56 conditions per place. [2024-06-27 21:54:30,438 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 18 selfloop transitions, 6 changer transitions 1/42 dead transitions. [2024-06-27 21:54:30,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 176 flow [2024-06-27 21:54:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 21:54:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 21:54:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-06-27 21:54:30,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7257142857142858 [2024-06-27 21:54:30,439 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 101 flow. Second operand 5 states and 127 transitions. [2024-06-27 21:54:30,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 176 flow [2024-06-27 21:54:30,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 167 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 21:54:30,443 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 117 flow [2024-06-27 21:54:30,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2024-06-27 21:54:30,445 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 9 predicate places. [2024-06-27 21:54:30,445 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 117 flow [2024-06-27 21:54:30,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2024-06-27 21:54:30,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:30,446 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] [2024-06-27 21:54:30,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 21:54:30,446 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:30,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:30,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2119831770, now seen corresponding path program 1 times [2024-06-27 21:54:30,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:30,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201387640] [2024-06-27 21:54:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:30,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:30,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:30,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201387640] [2024-06-27 21:54:30,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201387640] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:30,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:30,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:54:30,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744598722] [2024-06-27 21:54:30,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:30,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:30,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:30,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:30,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:30,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2024-06-27 21:54:30,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-06-27 21:54:30,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:30,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2024-06-27 21:54:30,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:30,700 INFO L124 PetriNetUnfolderBase]: 97/288 cut-off events. [2024-06-27 21:54:30,700 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-06-27 21:54:30,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 288 events. 97/288 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1298 event pairs, 36 based on Foata normal form. 8/279 useless extension candidates. Maximal degree in co-relation 633. Up to 97 conditions per place. [2024-06-27 21:54:30,702 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 18 selfloop transitions, 4 changer transitions 10/47 dead transitions. [2024-06-27 21:54:30,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 47 transitions, 219 flow [2024-06-27 21:54:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 21:54:30,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 21:54:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-06-27 21:54:30,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6914285714285714 [2024-06-27 21:54:30,703 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 117 flow. Second operand 5 states and 121 transitions. [2024-06-27 21:54:30,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 47 transitions, 219 flow [2024-06-27 21:54:30,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 47 transitions, 185 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-06-27 21:54:30,707 INFO L231 Difference]: Finished difference. Result has 48 places, 32 transitions, 113 flow [2024-06-27 21:54:30,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=48, PETRI_TRANSITIONS=32} [2024-06-27 21:54:30,708 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 11 predicate places. [2024-06-27 21:54:30,708 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 32 transitions, 113 flow [2024-06-27 21:54:30,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-06-27 21:54:30,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:30,708 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] [2024-06-27 21:54:30,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 21:54:30,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 21:54:30,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:30,710 INFO L85 PathProgramCache]: Analyzing trace with hash -12879554, now seen corresponding path program 2 times [2024-06-27 21:54:30,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:30,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301497594] [2024-06-27 21:54:30,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:30,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:54:30,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:30,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301497594] [2024-06-27 21:54:30,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301497594] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:30,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:30,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 21:54:30,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423308845] [2024-06-27 21:54:30,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:30,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:54:30,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:30,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:54:30,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:54:30,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2024-06-27 21:54:30,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 32 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:30,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:30,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2024-06-27 21:54:30,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:31,009 INFO L124 PetriNetUnfolderBase]: 62/176 cut-off events. [2024-06-27 21:54:31,009 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-06-27 21:54:31,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 176 events. 62/176 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 644 event pairs, 16 based on Foata normal form. 4/166 useless extension candidates. Maximal degree in co-relation 407. Up to 79 conditions per place. [2024-06-27 21:54:31,010 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2024-06-27 21:54:31,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 210 flow [2024-06-27 21:54:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 21:54:31,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 21:54:31,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-06-27 21:54:31,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5551020408163265 [2024-06-27 21:54:31,012 INFO L175 Difference]: Start difference. First operand has 48 places, 32 transitions, 113 flow. Second operand 7 states and 136 transitions. [2024-06-27 21:54:31,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 44 transitions, 210 flow [2024-06-27 21:54:31,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 44 transitions, 190 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-06-27 21:54:31,016 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-06-27 21:54:31,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-06-27 21:54:31,018 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2024-06-27 21:54:31,018 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-06-27 21:54:31,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:54:31,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-06-27 21:54:31,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-06-27 21:54:31,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-06-27 21:54:31,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-06-27 21:54:31,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-06-27 21:54:31,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 21:54:31,023 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2024-06-27 21:54:31,026 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 21:54:31,026 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 21:54:31,033 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 21:54:31,033 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 21:54:31,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 09:54:31 BasicIcfg [2024-06-27 21:54:31,035 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 21:54:31,036 INFO L158 Benchmark]: Toolchain (without parser) took 3379.42ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 69.1MB in the beginning and 130.0MB in the end (delta: -60.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:54:31,036 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:54:31,036 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:54:31,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.67ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 68.8MB in the beginning and 136.4MB in the end (delta: -67.6MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-06-27 21:54:31,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.12ms. Allocated memory is still 182.5MB. Free memory was 136.4MB in the beginning and 134.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 21:54:31,037 INFO L158 Benchmark]: Boogie Preprocessor took 69.52ms. Allocated memory is still 182.5MB. Free memory was 134.3MB in the beginning and 132.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 21:54:31,038 INFO L158 Benchmark]: RCFGBuilder took 387.97ms. Allocated memory is still 182.5MB. Free memory was 132.2MB in the beginning and 114.4MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-27 21:54:31,038 INFO L158 Benchmark]: TraceAbstraction took 2309.13ms. Allocated memory is still 182.5MB. Free memory was 113.3MB in the beginning and 130.0MB in the end (delta: -16.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:54:31,039 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 0.21ms. Allocated memory is still 142.6MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.67ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 68.8MB in the beginning and 136.4MB in the end (delta: -67.6MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.12ms. Allocated memory is still 182.5MB. Free memory was 136.4MB in the beginning and 134.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.52ms. Allocated memory is still 182.5MB. Free memory was 134.3MB in the beginning and 132.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.97ms. Allocated memory is still 182.5MB. Free memory was 132.2MB in the beginning and 114.4MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2309.13ms. Allocated memory is still 182.5MB. Free memory was 113.3MB in the beginning and 130.0MB in the end (delta: -16.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 763]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 764]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 52 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 432 IncrementalHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 23 mSDtfsCounter, 432 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=6, InterpolantAutomatonStates: 36, 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, 0.9s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 21:54:31,066 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