./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe011_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/safe011_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/safe011_tso.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe011_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 21:50:03,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 21:50:03,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 21:50:03,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 21:50:03,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 21:50:03,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 21:50:03,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 21:50:03,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 21:50:03,140 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 21:50:03,143 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 21:50:03,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 21:50:03,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 21:50:03,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 21:50:03,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 21:50:03,145 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 21:50:03,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 21:50:03,146 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 21:50:03,146 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 21:50:03,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 21:50:03,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 21:50:03,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 21:50:03,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 21:50:03,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 21:50:03,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 21:50:03,148 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 21:50:03,148 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 21:50:03,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 21:50:03,149 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 21:50:03,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 21:50:03,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 21:50:03,150 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 21:50:03,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 21:50:03,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:50:03,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 21:50:03,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 21:50:03,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 21:50:03,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 21:50:03,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 21:50:03,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 21:50:03,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 21:50:03,152 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 21:50:03,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 21:50:03,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 21:50:03,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 21:50:03,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 21:50:03,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 21:50:03,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 21:50:03,369 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 21:50:03,370 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 21:50:03,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe011_tso.yml/witness.yml [2024-06-27 21:50:03,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 21:50:03,437 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 21:50:03,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2024-06-27 21:50:04,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 21:50:04,688 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 21:50:04,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2024-06-27 21:50:04,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89184a854/86cb10393800427a8f6edabbf356398b/FLAG7ea1a3843 [2024-06-27 21:50:04,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89184a854/86cb10393800427a8f6edabbf356398b [2024-06-27 21:50:04,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 21:50:04,724 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 21:50:04,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 21:50:04,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 21:50:04,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 21:50:04,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:50:03" (1/2) ... [2024-06-27 21:50:04,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be4511b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:50:04, skipping insertion in model container [2024-06-27 21:50:04,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:50:03" (1/2) ... [2024-06-27 21:50:04,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ccf60a3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:50:04, skipping insertion in model container [2024-06-27 21:50:04,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:50:04" (2/2) ... [2024-06-27 21:50:04,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be4511b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:04, skipping insertion in model container [2024-06-27 21:50:04,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:50:04" (2/2) ... [2024-06-27 21:50:04,735 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 21:50:04,755 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 21:50:04,755 INFO L97 edCorrectnessWitness]: Location invariant before [L779-L779] ! multithreaded || (0LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL [2024-06-27 21:50:04,756 INFO L97 edCorrectnessWitness]: Location invariant before [L782-L782] ! multithreaded || (0LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL [2024-06-27 21:50:04,756 INFO L97 edCorrectnessWitness]: Location invariant before [L781-L781] ! multithreaded || (0LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL [2024-06-27 21:50:04,756 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 21:50:04,756 INFO L106 edCorrectnessWitness]: ghost_update [L777-L777] multithreaded = 1; [2024-06-27 21:50:04,793 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 21:50:04,943 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/safe011_tso.i[945,958] [2024-06-27 21:50:05,079 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:50:05,087 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 21:50:05,119 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/safe011_tso.i[945,958] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 21:50:05,176 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:50:05,213 INFO L206 MainTranslator]: Completed translation [2024-06-27 21:50:05,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05 WrapperNode [2024-06-27 21:50:05,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 21:50:05,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 21:50:05,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 21:50:05,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 21:50:05,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,257 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-06-27 21:50:05,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 21:50:05,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 21:50:05,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 21:50:05,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 21:50:05,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,288 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 21:50:05,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 21:50:05,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 21:50:05,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 21:50:05,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 21:50:05,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (1/1) ... [2024-06-27 21:50:05,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:50:05,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 21:50:05,321 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 21:50:05,333 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 21:50:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 21:50:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 21:50:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 21:50:05,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 21:50:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 21:50:05,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 21:50:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 21:50:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 21:50:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 21:50:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 21:50:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 21:50:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 21:50:05,365 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 21:50:05,463 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 21:50:05,465 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 21:50:05,570 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 21:50:05,570 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 21:50:05,621 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 21:50:05,621 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 21:50:05,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:50:05 BoogieIcfgContainer [2024-06-27 21:50:05,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 21:50:05,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 21:50:05,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 21:50:05,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 21:50:05,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:50:03" (1/4) ... [2024-06-27 21:50:05,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6953904d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 09:50:05, skipping insertion in model container [2024-06-27 21:50:05,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 09:50:04" (2/4) ... [2024-06-27 21:50:05,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6953904d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:50:05, skipping insertion in model container [2024-06-27 21:50:05,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:50:05" (3/4) ... [2024-06-27 21:50:05,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6953904d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:50:05, skipping insertion in model container [2024-06-27 21:50:05,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:50:05" (4/4) ... [2024-06-27 21:50:05,628 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2024-06-27 21:50:05,641 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 21:50:05,642 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-27 21:50:05,642 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 21:50:05,672 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 21:50:05,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 45 transitions, 102 flow [2024-06-27 21:50:05,725 INFO L124 PetriNetUnfolderBase]: 1/42 cut-off events. [2024-06-27 21:50:05,725 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:50:05,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-06-27 21:50:05,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 45 transitions, 102 flow [2024-06-27 21:50:05,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 39 transitions, 87 flow [2024-06-27 21:50:05,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 21:50:05,745 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;@4999b05f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 21:50:05,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-06-27 21:50:05,749 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 21:50:05,761 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 21:50:05,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:50:05,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:05,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 21:50:05,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:05,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:05,769 INFO L85 PathProgramCache]: Analyzing trace with hash 209194482, now seen corresponding path program 1 times [2024-06-27 21:50:05,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:05,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499982124] [2024-06-27 21:50:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:05,995 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 21:50:05,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:05,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499982124] [2024-06-27 21:50:05,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499982124] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:05,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:05,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 21:50:05,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799005071] [2024-06-27 21:50:05,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:06,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 21:50:06,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:06,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 21:50:06,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 21:50:06,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 45 [2024-06-27 21:50:06,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:50:06,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:06,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 45 [2024-06-27 21:50:06,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:06,196 INFO L124 PetriNetUnfolderBase]: 109/266 cut-off events. [2024-06-27 21:50:06,196 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-27 21:50:06,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 266 events. 109/266 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1437 event pairs, 37 based on Foata normal form. 4/247 useless extension candidates. Maximal degree in co-relation 471. Up to 147 conditions per place. [2024-06-27 21:50:06,201 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 23 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2024-06-27 21:50:06,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 46 transitions, 154 flow [2024-06-27 21:50:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 21:50:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 21:50:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-06-27 21:50:06,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.762962962962963 [2024-06-27 21:50:06,215 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 87 flow. Second operand 3 states and 103 transitions. [2024-06-27 21:50:06,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 46 transitions, 154 flow [2024-06-27 21:50:06,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 46 transitions, 150 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 21:50:06,222 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 92 flow [2024-06-27 21:50:06,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-06-27 21:50:06,227 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-06-27 21:50:06,227 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 92 flow [2024-06-27 21:50:06,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:50:06,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:06,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:06,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 21:50:06,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:06,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:06,230 INFO L85 PathProgramCache]: Analyzing trace with hash 727382999, now seen corresponding path program 1 times [2024-06-27 21:50:06,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:06,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798486009] [2024-06-27 21:50:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:06,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:06,314 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 21:50:06,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:06,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798486009] [2024-06-27 21:50:06,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798486009] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:06,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:06,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 21:50:06,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780476508] [2024-06-27 21:50:06,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:06,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:50:06,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:06,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:50:06,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:50:06,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-06-27 21:50:06,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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 21:50:06,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:06,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-06-27 21:50:06,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:06,421 INFO L124 PetriNetUnfolderBase]: 151/392 cut-off events. [2024-06-27 21:50:06,422 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-06-27 21:50:06,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 392 events. 151/392 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2290 event pairs, 25 based on Foata normal form. 8/381 useless extension candidates. Maximal degree in co-relation 727. Up to 161 conditions per place. [2024-06-27 21:50:06,427 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 27 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-06-27 21:50:06,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 183 flow [2024-06-27 21:50:06,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:50:06,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:50:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2024-06-27 21:50:06,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2024-06-27 21:50:06,432 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 92 flow. Second operand 4 states and 129 transitions. [2024-06-27 21:50:06,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 183 flow [2024-06-27 21:50:06,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:50:06,436 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 106 flow [2024-06-27 21:50:06,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2024-06-27 21:50:06,437 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-06-27 21:50:06,437 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 106 flow [2024-06-27 21:50:06,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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 21:50:06,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:06,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:06,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 21:50:06,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:06,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:06,448 INFO L85 PathProgramCache]: Analyzing trace with hash 780915480, now seen corresponding path program 1 times [2024-06-27 21:50:06,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:06,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656807075] [2024-06-27 21:50:06,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:06,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:06,560 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 21:50:06,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:06,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656807075] [2024-06-27 21:50:06,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656807075] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:06,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:06,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:50:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142052874] [2024-06-27 21:50:06,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:06,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:50:06,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:06,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:50:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:50:06,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-06-27 21:50:06,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 21:50:06,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:06,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-06-27 21:50:06,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:06,711 INFO L124 PetriNetUnfolderBase]: 191/474 cut-off events. [2024-06-27 21:50:06,712 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-06-27 21:50:06,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 474 events. 191/474 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3001 event pairs, 45 based on Foata normal form. 8/469 useless extension candidates. Maximal degree in co-relation 951. Up to 174 conditions per place. [2024-06-27 21:50:06,714 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 30 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-06-27 21:50:06,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 202 flow [2024-06-27 21:50:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:50:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:50:06,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2024-06-27 21:50:06,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2024-06-27 21:50:06,719 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 106 flow. Second operand 4 states and 129 transitions. [2024-06-27 21:50:06,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 202 flow [2024-06-27 21:50:06,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 199 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 21:50:06,722 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 112 flow [2024-06-27 21:50:06,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2024-06-27 21:50:06,723 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2024-06-27 21:50:06,723 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 112 flow [2024-06-27 21:50:06,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 21:50:06,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:06,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:06,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 21:50:06,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:06,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:06,725 INFO L85 PathProgramCache]: Analyzing trace with hash -570399848, now seen corresponding path program 2 times [2024-06-27 21:50:06,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:06,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502530978] [2024-06-27 21:50:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:06,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:06,830 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 21:50:06,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:06,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502530978] [2024-06-27 21:50:06,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502530978] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:06,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:06,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:50:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533736295] [2024-06-27 21:50:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:06,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:50:06,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:06,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:50:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:50:06,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-06-27 21:50:06,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 21:50:06,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:06,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-06-27 21:50:06,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:06,930 INFO L124 PetriNetUnfolderBase]: 179/470 cut-off events. [2024-06-27 21:50:06,930 INFO L125 PetriNetUnfolderBase]: For 228/228 co-relation queries the response was YES. [2024-06-27 21:50:06,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 470 events. 179/470 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3029 event pairs, 29 based on Foata normal form. 8/467 useless extension candidates. Maximal degree in co-relation 933. Up to 154 conditions per place. [2024-06-27 21:50:06,933 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 28 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-06-27 21:50:06,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 52 transitions, 198 flow [2024-06-27 21:50:06,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:50:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:50:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2024-06-27 21:50:06,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-06-27 21:50:06,935 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 112 flow. Second operand 4 states and 128 transitions. [2024-06-27 21:50:06,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 52 transitions, 198 flow [2024-06-27 21:50:06,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 52 transitions, 187 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-27 21:50:06,936 INFO L231 Difference]: Finished difference. Result has 50 places, 38 transitions, 101 flow [2024-06-27 21:50:06,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2024-06-27 21:50:06,937 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-06-27 21:50:06,937 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 101 flow [2024-06-27 21:50:06,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 21:50:06,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:06,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:06,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 21:50:06,938 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:06,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:06,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1566015722, now seen corresponding path program 1 times [2024-06-27 21:50:06,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:06,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442114450] [2024-06-27 21:50:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:06,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:07,086 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 21:50:07,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:07,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442114450] [2024-06-27 21:50:07,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442114450] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:07,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:07,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:50:07,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671389870] [2024-06-27 21:50:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:07,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:50:07,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:07,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:50:07,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:50:07,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 45 [2024-06-27 21:50:07,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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 21:50:07,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:07,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 45 [2024-06-27 21:50:07,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:07,409 INFO L124 PetriNetUnfolderBase]: 1657/3342 cut-off events. [2024-06-27 21:50:07,409 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-06-27 21:50:07,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6420 conditions, 3342 events. 1657/3342 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 26256 event pairs, 442 based on Foata normal form. 108/3368 useless extension candidates. Maximal degree in co-relation 6407. Up to 996 conditions per place. [2024-06-27 21:50:07,423 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 34 selfloop transitions, 7 changer transitions 39/96 dead transitions. [2024-06-27 21:50:07,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 96 transitions, 411 flow [2024-06-27 21:50:07,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 21:50:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 21:50:07,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions. [2024-06-27 21:50:07,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.707936507936508 [2024-06-27 21:50:07,426 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 101 flow. Second operand 7 states and 223 transitions. [2024-06-27 21:50:07,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 96 transitions, 411 flow [2024-06-27 21:50:07,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 96 transitions, 393 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 21:50:07,434 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 183 flow [2024-06-27 21:50:07,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=183, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2024-06-27 21:50:07,436 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 10 predicate places. [2024-06-27 21:50:07,436 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 183 flow [2024-06-27 21:50:07,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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 21:50:07,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:07,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:07,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 21:50:07,437 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:07,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash 532123947, now seen corresponding path program 1 times [2024-06-27 21:50:07,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:07,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615513704] [2024-06-27 21:50:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:07,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:07,556 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 21:50:07,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:07,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615513704] [2024-06-27 21:50:07,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615513704] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:07,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:07,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:50:07,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373522340] [2024-06-27 21:50:07,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:07,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:50:07,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:07,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:50:07,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:50:07,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 45 [2024-06-27 21:50:07,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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 21:50:07,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:07,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 45 [2024-06-27 21:50:07,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:07,901 INFO L124 PetriNetUnfolderBase]: 1457/3047 cut-off events. [2024-06-27 21:50:07,901 INFO L125 PetriNetUnfolderBase]: For 3726/3753 co-relation queries the response was YES. [2024-06-27 21:50:07,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8320 conditions, 3047 events. 1457/3047 cut-off events. For 3726/3753 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 24251 event pairs, 215 based on Foata normal form. 118/3096 useless extension candidates. Maximal degree in co-relation 8301. Up to 860 conditions per place. [2024-06-27 21:50:07,916 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 35 selfloop transitions, 9 changer transitions 52/112 dead transitions. [2024-06-27 21:50:07,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 112 transitions, 733 flow [2024-06-27 21:50:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 21:50:07,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 21:50:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 296 transitions. [2024-06-27 21:50:07,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6577777777777778 [2024-06-27 21:50:07,918 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 183 flow. Second operand 10 states and 296 transitions. [2024-06-27 21:50:07,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 112 transitions, 733 flow [2024-06-27 21:50:07,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 112 transitions, 681 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:50:07,929 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 249 flow [2024-06-27 21:50:07,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=249, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2024-06-27 21:50:07,932 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 22 predicate places. [2024-06-27 21:50:07,932 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 249 flow [2024-06-27 21:50:07,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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 21:50:07,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:07,932 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 21:50:07,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 21:50:07,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:07,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:07,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2040655189, now seen corresponding path program 1 times [2024-06-27 21:50:07,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:07,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800343731] [2024-06-27 21:50:07,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:07,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:08,041 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 21:50:08,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:08,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800343731] [2024-06-27 21:50:08,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800343731] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:08,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:08,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:50:08,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200249794] [2024-06-27 21:50:08,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:08,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:50:08,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:08,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:50:08,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:50:08,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-06-27 21:50:08,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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 21:50:08,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:08,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-06-27 21:50:08,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:08,422 INFO L124 PetriNetUnfolderBase]: 1853/3688 cut-off events. [2024-06-27 21:50:08,423 INFO L125 PetriNetUnfolderBase]: For 10838/10848 co-relation queries the response was YES. [2024-06-27 21:50:08,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11848 conditions, 3688 events. 1853/3688 cut-off events. For 10838/10848 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 28646 event pairs, 160 based on Foata normal form. 95/3756 useless extension candidates. Maximal degree in co-relation 11820. Up to 916 conditions per place. [2024-06-27 21:50:08,445 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 59 selfloop transitions, 21 changer transitions 73/167 dead transitions. [2024-06-27 21:50:08,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 167 transitions, 1266 flow [2024-06-27 21:50:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-27 21:50:08,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-27 21:50:08,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 390 transitions. [2024-06-27 21:50:08,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-06-27 21:50:08,447 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 249 flow. Second operand 13 states and 390 transitions. [2024-06-27 21:50:08,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 167 transitions, 1266 flow [2024-06-27 21:50:08,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 167 transitions, 1189 flow, removed 36 selfloop flow, removed 3 redundant places. [2024-06-27 21:50:08,465 INFO L231 Difference]: Finished difference. Result has 86 places, 58 transitions, 451 flow [2024-06-27 21:50:08,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=451, PETRI_PLACES=86, PETRI_TRANSITIONS=58} [2024-06-27 21:50:08,466 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 37 predicate places. [2024-06-27 21:50:08,466 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 58 transitions, 451 flow [2024-06-27 21:50:08,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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 21:50:08,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:08,466 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] [2024-06-27 21:50:08,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 21:50:08,467 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:08,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:08,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1947589352, now seen corresponding path program 1 times [2024-06-27 21:50:08,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:08,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937480075] [2024-06-27 21:50:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:08,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:08,563 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 21:50:08,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:08,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937480075] [2024-06-27 21:50:08,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937480075] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:08,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:08,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 21:50:08,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074069144] [2024-06-27 21:50:08,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:08,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 21:50:08,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 21:50:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 21:50:08,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-06-27 21:50:08,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 58 transitions, 451 flow. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:50:08,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:08,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-06-27 21:50:08,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:08,913 INFO L124 PetriNetUnfolderBase]: 1356/2668 cut-off events. [2024-06-27 21:50:08,913 INFO L125 PetriNetUnfolderBase]: For 15148/15177 co-relation queries the response was YES. [2024-06-27 21:50:08,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10502 conditions, 2668 events. 1356/2668 cut-off events. For 15148/15177 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 19353 event pairs, 200 based on Foata normal form. 94/2715 useless extension candidates. Maximal degree in co-relation 10463. Up to 656 conditions per place. [2024-06-27 21:50:08,929 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 42 selfloop transitions, 8 changer transitions 69/133 dead transitions. [2024-06-27 21:50:08,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 133 transitions, 1321 flow [2024-06-27 21:50:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 21:50:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 21:50:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 263 transitions. [2024-06-27 21:50:08,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6493827160493827 [2024-06-27 21:50:08,931 INFO L175 Difference]: Start difference. First operand has 86 places, 58 transitions, 451 flow. Second operand 9 states and 263 transitions. [2024-06-27 21:50:08,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 133 transitions, 1321 flow [2024-06-27 21:50:08,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 133 transitions, 1177 flow, removed 72 selfloop flow, removed 10 redundant places. [2024-06-27 21:50:08,999 INFO L231 Difference]: Finished difference. Result has 82 places, 45 transitions, 286 flow [2024-06-27 21:50:09,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=286, PETRI_PLACES=82, PETRI_TRANSITIONS=45} [2024-06-27 21:50:09,000 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 33 predicate places. [2024-06-27 21:50:09,000 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 45 transitions, 286 flow [2024-06-27 21:50:09,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:50:09,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:09,001 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] [2024-06-27 21:50:09,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 21:50:09,001 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:09,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash -815441136, now seen corresponding path program 1 times [2024-06-27 21:50:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:09,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69085687] [2024-06-27 21:50:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:09,072 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 21:50:09,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:09,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69085687] [2024-06-27 21:50:09,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69085687] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:09,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:09,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:50:09,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685823889] [2024-06-27 21:50:09,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:09,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:50:09,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:09,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:50:09,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:50:09,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-06-27 21:50:09,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 45 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 21:50:09,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:09,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-06-27 21:50:09,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:09,209 INFO L124 PetriNetUnfolderBase]: 414/939 cut-off events. [2024-06-27 21:50:09,209 INFO L125 PetriNetUnfolderBase]: For 3024/3057 co-relation queries the response was YES. [2024-06-27 21:50:09,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3290 conditions, 939 events. 414/939 cut-off events. For 3024/3057 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5876 event pairs, 146 based on Foata normal form. 32/914 useless extension candidates. Maximal degree in co-relation 3266. Up to 488 conditions per place. [2024-06-27 21:50:09,220 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 27 selfloop transitions, 4 changer transitions 21/76 dead transitions. [2024-06-27 21:50:09,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 76 transitions, 600 flow [2024-06-27 21:50:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 21:50:09,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 21:50:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-06-27 21:50:09,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.692063492063492 [2024-06-27 21:50:09,221 INFO L175 Difference]: Start difference. First operand has 82 places, 45 transitions, 286 flow. Second operand 7 states and 218 transitions. [2024-06-27 21:50:09,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 76 transitions, 600 flow [2024-06-27 21:50:09,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 455 flow, removed 28 selfloop flow, removed 17 redundant places. [2024-06-27 21:50:09,227 INFO L231 Difference]: Finished difference. Result has 72 places, 46 transitions, 237 flow [2024-06-27 21:50:09,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=237, PETRI_PLACES=72, PETRI_TRANSITIONS=46} [2024-06-27 21:50:09,228 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 23 predicate places. [2024-06-27 21:50:09,228 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 46 transitions, 237 flow [2024-06-27 21:50:09,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 21:50:09,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:09,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:09,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 21:50:09,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:09,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:09,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2012347365, now seen corresponding path program 1 times [2024-06-27 21:50:09,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:09,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404269215] [2024-06-27 21:50:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:09,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:09,301 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 21:50:09,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:09,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404269215] [2024-06-27 21:50:09,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404269215] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:09,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:09,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:50:09,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715379274] [2024-06-27 21:50:09,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:09,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:50:09,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:09,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:50:09,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:50:09,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 45 [2024-06-27 21:50:09,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 46 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:50:09,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:09,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 45 [2024-06-27 21:50:09,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:09,441 INFO L124 PetriNetUnfolderBase]: 627/1298 cut-off events. [2024-06-27 21:50:09,441 INFO L125 PetriNetUnfolderBase]: For 1505/1551 co-relation queries the response was YES. [2024-06-27 21:50:09,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3266 conditions, 1298 events. 627/1298 cut-off events. For 1505/1551 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8086 event pairs, 134 based on Foata normal form. 65/1301 useless extension candidates. Maximal degree in co-relation 3248. Up to 512 conditions per place. [2024-06-27 21:50:09,447 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 30 selfloop transitions, 5 changer transitions 0/63 dead transitions. [2024-06-27 21:50:09,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 345 flow [2024-06-27 21:50:09,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:50:09,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:50:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-06-27 21:50:09,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7611111111111111 [2024-06-27 21:50:09,449 INFO L175 Difference]: Start difference. First operand has 72 places, 46 transitions, 237 flow. Second operand 4 states and 137 transitions. [2024-06-27 21:50:09,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 345 flow [2024-06-27 21:50:09,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 63 transitions, 333 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-27 21:50:09,452 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 263 flow [2024-06-27 21:50:09,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=263, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-06-27 21:50:09,453 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 21 predicate places. [2024-06-27 21:50:09,453 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 263 flow [2024-06-27 21:50:09,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 21:50:09,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:09,453 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] [2024-06-27 21:50:09,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 21:50:09,453 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:09,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:09,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1951854748, now seen corresponding path program 1 times [2024-06-27 21:50:09,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:09,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860538100] [2024-06-27 21:50:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:09,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:09,511 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 21:50:09,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:09,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860538100] [2024-06-27 21:50:09,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860538100] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:09,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:09,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:50:09,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617876964] [2024-06-27 21:50:09,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:09,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:50:09,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:09,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:50:09,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:50:09,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 45 [2024-06-27 21:50:09,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 21:50:09,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:09,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 45 [2024-06-27 21:50:09,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:09,621 INFO L124 PetriNetUnfolderBase]: 495/1028 cut-off events. [2024-06-27 21:50:09,621 INFO L125 PetriNetUnfolderBase]: For 793/1062 co-relation queries the response was YES. [2024-06-27 21:50:09,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2786 conditions, 1028 events. 495/1028 cut-off events. For 793/1062 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 5912 event pairs, 42 based on Foata normal form. 77/1044 useless extension candidates. Maximal degree in co-relation 2768. Up to 428 conditions per place. [2024-06-27 21:50:09,627 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 34 selfloop transitions, 8 changer transitions 4/74 dead transitions. [2024-06-27 21:50:09,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 74 transitions, 424 flow [2024-06-27 21:50:09,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 21:50:09,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 21:50:09,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-06-27 21:50:09,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7688888888888888 [2024-06-27 21:50:09,628 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 263 flow. Second operand 5 states and 173 transitions. [2024-06-27 21:50:09,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 74 transitions, 424 flow [2024-06-27 21:50:09,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 74 transitions, 409 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-06-27 21:50:09,631 INFO L231 Difference]: Finished difference. Result has 73 places, 53 transitions, 297 flow [2024-06-27 21:50:09,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=297, PETRI_PLACES=73, PETRI_TRANSITIONS=53} [2024-06-27 21:50:09,631 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 24 predicate places. [2024-06-27 21:50:09,632 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 297 flow [2024-06-27 21:50:09,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 21:50:09,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:50:09,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:09,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 21:50:09,632 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:50:09,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:50:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash -512340365, now seen corresponding path program 1 times [2024-06-27 21:50:09,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:50:09,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048015390] [2024-06-27 21:50:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:50:09,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:50:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:50:09,697 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 21:50:09,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:50:09,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048015390] [2024-06-27 21:50:09,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048015390] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:50:09,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:50:09,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:50:09,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077962452] [2024-06-27 21:50:09,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:50:09,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:50:09,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:50:09,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:50:09,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:50:09,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 45 [2024-06-27 21:50:09,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 297 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 21:50:09,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:50:09,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 45 [2024-06-27 21:50:09,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:50:09,821 INFO L124 PetriNetUnfolderBase]: 387/780 cut-off events. [2024-06-27 21:50:09,822 INFO L125 PetriNetUnfolderBase]: For 1396/1879 co-relation queries the response was YES. [2024-06-27 21:50:09,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2488 conditions, 780 events. 387/780 cut-off events. For 1396/1879 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4354 event pairs, 24 based on Foata normal form. 58/781 useless extension candidates. Maximal degree in co-relation 2470. Up to 380 conditions per place. [2024-06-27 21:50:09,824 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2024-06-27 21:50:09,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 71 transitions, 426 flow [2024-06-27 21:50:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 21:50:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 21:50:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2024-06-27 21:50:09,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-06-27 21:50:09,826 INFO L175 Difference]: Start difference. First operand has 73 places, 53 transitions, 297 flow. Second operand 6 states and 198 transitions. [2024-06-27 21:50:09,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 71 transitions, 426 flow [2024-06-27 21:50:09,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 71 transitions, 398 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-06-27 21:50:09,828 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2024-06-27 21:50:09,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2024-06-27 21:50:09,828 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-06-27 21:50:09,828 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2024-06-27 21:50:09,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 21:50:09,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 7 remaining) [2024-06-27 21:50:09,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 7 remaining) [2024-06-27 21:50:09,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 7 remaining) [2024-06-27 21:50:09,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-06-27 21:50:09,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-06-27 21:50:09,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-06-27 21:50:09,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2024-06-27 21:50:09,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 21:50:09,832 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:50:09,834 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 21:50:09,834 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 21:50:09,837 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-27 21:50:09,837 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-27 21:50:09,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 09:50:09 BasicIcfg [2024-06-27 21:50:09,838 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 21:50:09,838 INFO L158 Benchmark]: Toolchain (without parser) took 5114.77ms. Allocated memory was 159.4MB in the beginning and 251.7MB in the end (delta: 92.3MB). Free memory was 100.4MB in the beginning and 165.9MB in the end (delta: -65.5MB). Peak memory consumption was 138.6MB. Max. memory is 16.1GB. [2024-06-27 21:50:09,839 INFO L158 Benchmark]: Witness Parser took 0.84ms. Allocated memory is still 159.4MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:50:09,839 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:50:09,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.63ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 74.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 21:50:09,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.04ms. Allocated memory is still 159.4MB. Free memory was 74.9MB in the beginning and 72.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 21:50:09,839 INFO L158 Benchmark]: Boogie Preprocessor took 39.60ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 72.7MB in the beginning and 178.2MB in the end (delta: -105.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-06-27 21:50:09,840 INFO L158 Benchmark]: RCFGBuilder took 322.48ms. Allocated memory is still 209.7MB. Free memory was 178.2MB in the beginning and 161.7MB in the end (delta: 16.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-06-27 21:50:09,840 INFO L158 Benchmark]: TraceAbstraction took 4214.75ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 160.6MB in the beginning and 165.9MB in the end (delta: -5.3MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. [2024-06-27 21:50:09,841 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 0.84ms. Allocated memory is still 159.4MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.63ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 74.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.04ms. Allocated memory is still 159.4MB. Free memory was 74.9MB in the beginning and 72.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.60ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 72.7MB in the beginning and 178.2MB in the end (delta: -105.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 322.48ms. Allocated memory is still 209.7MB. Free memory was 178.2MB in the beginning and 161.7MB in the end (delta: 16.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4214.75ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 160.6MB in the beginning and 165.9MB in the end (delta: -5.3MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 779]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 781]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 782]: 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 7 procedures, 69 locations, 7 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: 4.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 699 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 594 mSDsluCounter, 346 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1108 IncrementalHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 117 mSDtfsCounter, 1108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=7, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 941 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 21:50:09,875 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