./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.13.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b2c6a3c4af8091017033117c21d8fbc40cee2009788b890a114045d77587077 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:09:31,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:09:31,184 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:09:31,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:09:31,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:09:31,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:09:31,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:09:31,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:09:31,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:09:31,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:09:31,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:09:31,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:09:31,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:09:31,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:09:31,219 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:09:31,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:09:31,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:09:31,220 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:09:31,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:09:31,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:09:31,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:09:31,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:09:31,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:09:31,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:09:31,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:09:31,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:09:31,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:09:31,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:09:31,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:09:31,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:09:31,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:09:31,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:09:31,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:09:31,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:09:31,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:09:31,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:09:31,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:09:31,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:09:31,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:09:31,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:09:31,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:09:31,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:09:31,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2c6a3c4af8091017033117c21d8fbc40cee2009788b890a114045d77587077 [2024-11-11 21:09:31,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:09:31,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:09:31,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:09:31,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:09:31,503 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:09:31,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.13.cil-1.c [2024-11-11 21:09:32,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:09:33,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:09:33,141 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-1.c [2024-11-11 21:09:33,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6471e4969/2ec97b31da4d4a0ea717e5a94434b36d/FLAGd111eb0a3 [2024-11-11 21:09:33,173 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6471e4969/2ec97b31da4d4a0ea717e5a94434b36d [2024-11-11 21:09:33,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:09:33,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:09:33,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:09:33,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:09:33,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:09:33,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eca539e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33, skipping insertion in model container [2024-11-11 21:09:33,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:09:33,434 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-1.c[671,684] [2024-11-11 21:09:33,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:09:33,585 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:09:33,595 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-1.c[671,684] [2024-11-11 21:09:33,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:09:33,697 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:09:33,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33 WrapperNode [2024-11-11 21:09:33,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:09:33,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:09:33,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:09:33,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:09:33,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,760 INFO L138 Inliner]: procedures = 54, calls = 71, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 945 [2024-11-11 21:09:33,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:09:33,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:09:33,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:09:33,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:09:33,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,773 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,786 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]. [2024-11-11 21:09:33,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:09:33,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:09:33,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:09:33,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:09:33,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (1/1) ... [2024-11-11 21:09:33,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:09:33,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:09:33,848 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) [2024-11-11 21:09:33,850 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 [2024-11-11 21:09:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:09:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 21:09:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 21:09:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 21:09:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 21:09:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 21:09:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 21:09:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-11 21:09:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-11 21:09:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 21:09:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 21:09:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 21:09:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 21:09:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 21:09:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 21:09:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:09:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:09:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:09:33,990 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:09:33,991 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:09:34,719 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-11 21:09:34,719 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:09:34,737 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:09:34,737 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-11 21:09:34,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:09:34 BoogieIcfgContainer [2024-11-11 21:09:34,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:09:34,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:09:34,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:09:34,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:09:34,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:09:33" (1/3) ... [2024-11-11 21:09:34,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76de036e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:09:34, skipping insertion in model container [2024-11-11 21:09:34,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:09:33" (2/3) ... [2024-11-11 21:09:34,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76de036e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:09:34, skipping insertion in model container [2024-11-11 21:09:34,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:09:34" (3/3) ... [2024-11-11 21:09:34,744 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.13.cil-1.c [2024-11-11 21:09:34,756 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:09:34,756 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:09:34,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:09:34,817 INFO L333 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, 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;@60d1a823, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:09:34,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:09:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 429 states, 391 states have (on average 1.6470588235294117) internal successors, (644), 395 states have internal predecessors, (644), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-11 21:09:34,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:09:34,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:34,836 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:09:34,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:34,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:34,841 INFO L85 PathProgramCache]: Analyzing trace with hash -363177738, now seen corresponding path program 1 times [2024-11-11 21:09:34,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:34,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489998491] [2024-11-11 21:09:34,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:34,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:35,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:35,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:09:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:35,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:09:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:35,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:09:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:35,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:09:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:35,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:35,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489998491] [2024-11-11 21:09:35,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489998491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:35,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:35,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:09:35,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006250805] [2024-11-11 21:09:35,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:35,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:09:35,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:35,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:09:35,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:09:35,580 INFO L87 Difference]: Start difference. First operand has 429 states, 391 states have (on average 1.6470588235294117) internal successors, (644), 395 states have internal predecessors, (644), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:37,535 INFO L93 Difference]: Finished difference Result 997 states and 1647 transitions. [2024-11-11 21:09:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:09:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:09:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:37,551 INFO L225 Difference]: With dead ends: 997 [2024-11-11 21:09:37,551 INFO L226 Difference]: Without dead ends: 576 [2024-11-11 21:09:37,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:09:37,561 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 1135 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:37,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 863 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 21:09:37,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-11 21:09:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 423. [2024-11-11 21:09:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 387 states have (on average 1.5633074935400517) internal successors, (605), 389 states have internal predecessors, (605), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-11 21:09:37,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 661 transitions. [2024-11-11 21:09:37,639 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 661 transitions. Word has length 189 [2024-11-11 21:09:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:37,639 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 661 transitions. [2024-11-11 21:09:37,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:37,639 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 661 transitions. [2024-11-11 21:09:37,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:09:37,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:37,644 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:09:37,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:09:37,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:37,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:37,645 INFO L85 PathProgramCache]: Analyzing trace with hash -968952520, now seen corresponding path program 1 times [2024-11-11 21:09:37,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:37,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393774357] [2024-11-11 21:09:37,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:37,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:37,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:37,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:09:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:38,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:09:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:38,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:09:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:38,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:09:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:38,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:38,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393774357] [2024-11-11 21:09:38,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393774357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:38,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:38,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:09:38,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17916363] [2024-11-11 21:09:38,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:38,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:09:38,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:38,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:09:38,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:09:38,105 INFO L87 Difference]: Start difference. First operand 423 states and 661 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:41,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:41,000 INFO L93 Difference]: Finished difference Result 1553 states and 2480 transitions. [2024-11-11 21:09:41,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 21:09:41,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:09:41,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:41,006 INFO L225 Difference]: With dead ends: 1553 [2024-11-11 21:09:41,007 INFO L226 Difference]: Without dead ends: 1151 [2024-11-11 21:09:41,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:09:41,009 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 1706 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:41,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 1459 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-11 21:09:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-11-11 21:09:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 844. [2024-11-11 21:09:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 779 states have (on average 1.5738125802310654) internal successors, (1226), 782 states have internal predecessors, (1226), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-11 21:09:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1329 transitions. [2024-11-11 21:09:41,096 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1329 transitions. Word has length 189 [2024-11-11 21:09:41,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:41,098 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1329 transitions. [2024-11-11 21:09:41,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1329 transitions. [2024-11-11 21:09:41,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:09:41,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:41,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:09:41,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:09:41,105 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:41,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:41,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1478988340, now seen corresponding path program 1 times [2024-11-11 21:09:41,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:41,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538389640] [2024-11-11 21:09:41,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:41,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:41,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:41,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:09:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:41,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:09:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:41,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:09:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:41,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:09:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:41,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:41,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:41,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538389640] [2024-11-11 21:09:41,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538389640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:41,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:41,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:41,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080163237] [2024-11-11 21:09:41,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:41,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:41,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:41,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:41,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:41,504 INFO L87 Difference]: Start difference. First operand 844 states and 1329 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:45,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:45,773 INFO L93 Difference]: Finished difference Result 2569 states and 4111 transitions. [2024-11-11 21:09:45,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:45,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:09:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:45,821 INFO L225 Difference]: With dead ends: 2569 [2024-11-11 21:09:45,821 INFO L226 Difference]: Without dead ends: 1746 [2024-11-11 21:09:45,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:45,824 INFO L435 NwaCegarLoop]: 637 mSDtfsCounter, 1751 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3861 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:45,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 2846 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3861 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-11 21:09:45,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-11-11 21:09:45,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1236. [2024-11-11 21:09:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1142 states have (on average 1.5665499124343258) internal successors, (1789), 1146 states have internal predecessors, (1789), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-11 21:09:45,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1938 transitions. [2024-11-11 21:09:45,889 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1938 transitions. Word has length 189 [2024-11-11 21:09:45,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:45,889 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1938 transitions. [2024-11-11 21:09:45,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:45,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1938 transitions. [2024-11-11 21:09:45,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:09:45,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:45,892 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:09:45,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:09:45,892 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:45,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:45,893 INFO L85 PathProgramCache]: Analyzing trace with hash -444262090, now seen corresponding path program 1 times [2024-11-11 21:09:45,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:45,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157399360] [2024-11-11 21:09:45,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:45,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:46,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:46,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:09:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:46,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:09:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:46,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:09:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:46,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:09:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:46,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:46,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157399360] [2024-11-11 21:09:46,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157399360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:46,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:46,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:46,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244666097] [2024-11-11 21:09:46,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:46,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:46,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:46,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:46,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:46,251 INFO L87 Difference]: Start difference. First operand 1236 states and 1938 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:50,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:50,164 INFO L93 Difference]: Finished difference Result 4067 states and 6496 transitions. [2024-11-11 21:09:50,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:50,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:09:50,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:50,174 INFO L225 Difference]: With dead ends: 4067 [2024-11-11 21:09:50,174 INFO L226 Difference]: Without dead ends: 2852 [2024-11-11 21:09:50,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:50,178 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1745 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3840 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:50,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 2844 Invalid, 3909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3840 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 21:09:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2024-11-11 21:09:50,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2024. [2024-11-11 21:09:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 1872 states have (on average 1.560897435897436) internal successors, (2922), 1878 states have internal predecessors, (2922), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-11 21:09:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3167 transitions. [2024-11-11 21:09:50,256 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3167 transitions. Word has length 189 [2024-11-11 21:09:50,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:50,256 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 3167 transitions. [2024-11-11 21:09:50,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:50,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3167 transitions. [2024-11-11 21:09:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:09:50,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:50,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:09:50,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:09:50,259 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:50,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:50,260 INFO L85 PathProgramCache]: Analyzing trace with hash 54294712, now seen corresponding path program 1 times [2024-11-11 21:09:50,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:50,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165933398] [2024-11-11 21:09:50,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:50,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:50,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:50,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:09:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:50,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:09:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:50,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:09:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:50,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:09:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:50,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:50,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165933398] [2024-11-11 21:09:50,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165933398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:50,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:50,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:50,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534613504] [2024-11-11 21:09:50,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:50,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:50,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:50,513 INFO L87 Difference]: Start difference. First operand 2024 states and 3167 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:54,312 INFO L93 Difference]: Finished difference Result 6957 states and 11065 transitions. [2024-11-11 21:09:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:54,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:09:54,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:54,329 INFO L225 Difference]: With dead ends: 6957 [2024-11-11 21:09:54,329 INFO L226 Difference]: Without dead ends: 4954 [2024-11-11 21:09:54,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:54,334 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1744 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3827 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:54,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 2844 Invalid, 3896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3827 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 21:09:54,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2024-11-11 21:09:54,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 3601. [2024-11-11 21:09:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 3333 states have (on average 1.5565556555655566) internal successors, (5188), 3343 states have internal predecessors, (5188), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-11 21:09:54,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5631 transitions. [2024-11-11 21:09:54,469 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5631 transitions. Word has length 189 [2024-11-11 21:09:54,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:54,469 INFO L471 AbstractCegarLoop]: Abstraction has 3601 states and 5631 transitions. [2024-11-11 21:09:54,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5631 transitions. [2024-11-11 21:09:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:09:54,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:54,472 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:09:54,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:09:54,473 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:54,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:54,473 INFO L85 PathProgramCache]: Analyzing trace with hash 624566518, now seen corresponding path program 1 times [2024-11-11 21:09:54,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:54,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694219387] [2024-11-11 21:09:54,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:54,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:54,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:54,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:09:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:54,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:09:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:54,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:09:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:54,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:09:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:54,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:54,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694219387] [2024-11-11 21:09:54,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694219387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:54,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:54,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:54,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445330071] [2024-11-11 21:09:54,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:54,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:54,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:54,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:54,730 INFO L87 Difference]: Start difference. First operand 3601 states and 5631 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:58,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:58,459 INFO L93 Difference]: Finished difference Result 12736 states and 20219 transitions. [2024-11-11 21:09:58,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:58,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:09:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:58,491 INFO L225 Difference]: With dead ends: 12736 [2024-11-11 21:09:58,491 INFO L226 Difference]: Without dead ends: 9156 [2024-11-11 21:09:58,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:58,502 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1743 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3814 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:58,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 2844 Invalid, 3883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3814 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 21:09:58,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9156 states. [2024-11-11 21:09:58,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9156 to 6762. [2024-11-11 21:09:58,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6262 states have (on average 1.5538166719897797) internal successors, (9730), 6280 states have internal predecessors, (9730), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-11 21:09:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 10587 transitions. [2024-11-11 21:09:58,882 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 10587 transitions. Word has length 189 [2024-11-11 21:09:58,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:58,883 INFO L471 AbstractCegarLoop]: Abstraction has 6762 states and 10587 transitions. [2024-11-11 21:09:58,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:58,883 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 10587 transitions. [2024-11-11 21:09:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:09:58,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:58,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:09:58,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:09:58,887 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:58,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2028435704, now seen corresponding path program 1 times [2024-11-11 21:09:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:58,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133538690] [2024-11-11 21:09:58,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:58,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:59,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:09:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:59,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:09:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:59,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:09:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:59,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:09:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:59,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:59,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133538690] [2024-11-11 21:09:59,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133538690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:59,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:59,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033001664] [2024-11-11 21:09:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:59,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:59,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:59,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:59,110 INFO L87 Difference]: Start difference. First operand 6762 states and 10587 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:03,250 INFO L93 Difference]: Finished difference Result 24295 states and 38589 transitions. [2024-11-11 21:10:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:10:03,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:10:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:03,302 INFO L225 Difference]: With dead ends: 24295 [2024-11-11 21:10:03,303 INFO L226 Difference]: Without dead ends: 17554 [2024-11-11 21:10:03,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:10:03,321 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1856 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 3360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:03,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 1801 Invalid, 3360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 21:10:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17554 states. [2024-11-11 21:10:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17554 to 13099. [2024-11-11 21:10:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13099 states, 12135 states have (on average 1.5522043675319324) internal successors, (18836), 12169 states have internal predecessors, (18836), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-11 21:10:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13099 states to 13099 states and 20575 transitions. [2024-11-11 21:10:04,044 INFO L78 Accepts]: Start accepts. Automaton has 13099 states and 20575 transitions. Word has length 189 [2024-11-11 21:10:04,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:04,044 INFO L471 AbstractCegarLoop]: Abstraction has 13099 states and 20575 transitions. [2024-11-11 21:10:04,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13099 states and 20575 transitions. [2024-11-11 21:10:04,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:10:04,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:04,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:04,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:10:04,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:04,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:04,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1242437814, now seen corresponding path program 1 times [2024-11-11 21:10:04,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:04,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010809761] [2024-11-11 21:10:04,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:04,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:04,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:04,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:10:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:04,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:10:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:04,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:10:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:04,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:10:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:04,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:04,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010809761] [2024-11-11 21:10:04,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010809761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:04,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:04,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:04,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091752110] [2024-11-11 21:10:04,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:04,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:04,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:04,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:04,300 INFO L87 Difference]: Start difference. First operand 13099 states and 20575 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:09,511 INFO L93 Difference]: Finished difference Result 47414 states and 75523 transitions. [2024-11-11 21:10:09,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:10:09,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:10:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:09,608 INFO L225 Difference]: With dead ends: 47414 [2024-11-11 21:10:09,608 INFO L226 Difference]: Without dead ends: 34336 [2024-11-11 21:10:09,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:10:09,648 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1741 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3788 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:09,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 2844 Invalid, 3857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3788 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-11 21:10:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34336 states. [2024-11-11 21:10:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34336 to 25804. [2024-11-11 21:10:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25804 states, 23912 states have (on average 1.5512713282034125) internal successors, (37094), 23978 states have internal predecessors, (37094), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-11 21:10:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25804 states to 25804 states and 40759 transitions. [2024-11-11 21:10:11,157 INFO L78 Accepts]: Start accepts. Automaton has 25804 states and 40759 transitions. Word has length 189 [2024-11-11 21:10:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:11,157 INFO L471 AbstractCegarLoop]: Abstraction has 25804 states and 40759 transitions. [2024-11-11 21:10:11,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand 25804 states and 40759 transitions. [2024-11-11 21:10:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:10:11,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:11,171 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:11,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:10:11,172 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:11,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:11,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1909819704, now seen corresponding path program 1 times [2024-11-11 21:10:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046903874] [2024-11-11 21:10:11,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:11,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:11,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:11,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:10:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:11,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:10:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:11,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:10:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:11,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:10:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:11,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:11,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046903874] [2024-11-11 21:10:11,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046903874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:11,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190308235] [2024-11-11 21:10:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:11,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:11,583 INFO L87 Difference]: Start difference. First operand 25804 states and 40759 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:17,533 INFO L93 Difference]: Finished difference Result 93653 states and 149993 transitions. [2024-11-11 21:10:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:10:17,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:10:17,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:17,723 INFO L225 Difference]: With dead ends: 93653 [2024-11-11 21:10:17,724 INFO L226 Difference]: Without dead ends: 67870 [2024-11-11 21:10:17,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:10:17,803 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1740 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3775 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:17,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 2844 Invalid, 3844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3775 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 21:10:17,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67870 states. [2024-11-11 21:10:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67870 to 51277. [2024-11-11 21:10:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51277 states, 47529 states have (on average 1.550716404721328) internal successors, (73704), 47659 states have internal predecessors, (73704), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-11 21:10:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51277 states to 51277 states and 81707 transitions. [2024-11-11 21:10:20,754 INFO L78 Accepts]: Start accepts. Automaton has 51277 states and 81707 transitions. Word has length 189 [2024-11-11 21:10:20,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:20,755 INFO L471 AbstractCegarLoop]: Abstraction has 51277 states and 81707 transitions. [2024-11-11 21:10:20,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:20,755 INFO L276 IsEmpty]: Start isEmpty. Operand 51277 states and 81707 transitions. [2024-11-11 21:10:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:10:20,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:20,783 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:20,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:10:20,783 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:20,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:20,784 INFO L85 PathProgramCache]: Analyzing trace with hash -285409162, now seen corresponding path program 1 times [2024-11-11 21:10:20,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:20,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301933749] [2024-11-11 21:10:20,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:20,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:21,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:21,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:10:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:21,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:10:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:21,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:10:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:21,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:10:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:21,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:21,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:21,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301933749] [2024-11-11 21:10:21,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301933749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:21,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:21,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:21,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347043761] [2024-11-11 21:10:21,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:21,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:21,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:21,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:21,395 INFO L87 Difference]: Start difference. First operand 51277 states and 81707 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:26,543 INFO L93 Difference]: Finished difference Result 120287 states and 195268 transitions. [2024-11-11 21:10:26,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:10:26,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:10:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:26,765 INFO L225 Difference]: With dead ends: 120287 [2024-11-11 21:10:26,765 INFO L226 Difference]: Without dead ends: 69031 [2024-11-11 21:10:26,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:10:26,864 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 1259 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:26,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1430 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:10:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69031 states. [2024-11-11 21:10:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69031 to 51277. [2024-11-11 21:10:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51277 states, 47529 states have (on average 1.5480022722969136) internal successors, (73575), 47659 states have internal predecessors, (73575), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-11 21:10:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51277 states to 51277 states and 81578 transitions. [2024-11-11 21:10:29,884 INFO L78 Accepts]: Start accepts. Automaton has 51277 states and 81578 transitions. Word has length 189 [2024-11-11 21:10:29,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:10:29,885 INFO L471 AbstractCegarLoop]: Abstraction has 51277 states and 81578 transitions. [2024-11-11 21:10:29,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:29,885 INFO L276 IsEmpty]: Start isEmpty. Operand 51277 states and 81578 transitions. [2024-11-11 21:10:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-11 21:10:29,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:10:29,905 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:10:29,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:10:29,906 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:10:29,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:10:29,906 INFO L85 PathProgramCache]: Analyzing trace with hash 59419000, now seen corresponding path program 1 times [2024-11-11 21:10:29,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:10:29,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103750106] [2024-11-11 21:10:29,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:10:29,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:10:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:29,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:10:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:10:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 21:10:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 21:10:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-11 21:10:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:10:30,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:10:30,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:10:30,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103750106] [2024-11-11 21:10:30,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103750106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:10:30,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:10:30,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:10:30,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824133849] [2024-11-11 21:10:30,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:10:30,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:10:30,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:10:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:10:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:10:30,222 INFO L87 Difference]: Start difference. First operand 51277 states and 81578 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:10:40,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:10:40,343 INFO L93 Difference]: Finished difference Result 185872 states and 299619 transitions. [2024-11-11 21:10:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:10:40,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2024-11-11 21:10:40,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:10:41,429 INFO L225 Difference]: With dead ends: 185872 [2024-11-11 21:10:41,429 INFO L226 Difference]: Without dead ends: 134616 [2024-11-11 21:10:41,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:10:41,624 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 1734 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:10:41,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 2844 Invalid, 3787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-11 21:10:41,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134616 states.