./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.13.cil-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0dcd4461cca64e9ab41b6ad7ff4c6eaa4177bddcca1c612fa1571b77ac664a95 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:08:37,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:08:37,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:08:37,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:08:37,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:08:37,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:08:37,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:08:37,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:08:37,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:08:37,964 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:08:37,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:08:37,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:08:37,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:08:37,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:08:37,964 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:08:37,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:08:37,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:08:37,964 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:08:37,965 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:08:37,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:08:37,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:08:37,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:08:37,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:08:37,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:08:37,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:08:37,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:08:37,966 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 0dcd4461cca64e9ab41b6ad7ff4c6eaa4177bddcca1c612fa1571b77ac664a95 [2025-02-05 16:08:38,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:08:38,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:08:38,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:08:38,182 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:08:38,182 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:08:38,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.13.cil-2.c [2025-02-05 16:08:39,326 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a140415d1/78f90599f31a43c6b67e6deab2ad1080/FLAG4ef680065 [2025-02-05 16:08:39,674 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:08:39,677 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-2.c [2025-02-05 16:08:39,689 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a140415d1/78f90599f31a43c6b67e6deab2ad1080/FLAG4ef680065 [2025-02-05 16:08:39,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a140415d1/78f90599f31a43c6b67e6deab2ad1080 [2025-02-05 16:08:39,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:08:39,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:08:39,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:08:39,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:08:39,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:08:39,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:08:39" (1/1) ... [2025-02-05 16:08:39,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65665ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:39, skipping insertion in model container [2025-02-05 16:08:39,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:08:39" (1/1) ... [2025-02-05 16:08:39,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:08:40,055 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-2.c[671,684] [2025-02-05 16:08:40,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:08:40,179 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:08:40,188 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-2.c[671,684] [2025-02-05 16:08:40,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:08:40,251 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:08:40,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40 WrapperNode [2025-02-05 16:08:40,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:08:40,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:08:40,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:08:40,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:08:40,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,290 INFO L138 Inliner]: procedures = 54, calls = 70, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 891 [2025-02-05 16:08:40,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:08:40,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:08:40,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:08:40,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:08:40,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,312 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]. [2025-02-05 16:08:40,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,321 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:08:40,327 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:08:40,327 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:08:40,328 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:08:40,328 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (1/1) ... [2025-02-05 16:08:40,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:08:40,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:08:40,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 16:08:40,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 16:08:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:08:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-02-05 16:08:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-02-05 16:08:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-02-05 16:08:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-02-05 16:08:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-02-05 16:08:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-02-05 16:08:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-02-05 16:08:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-02-05 16:08:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-02-05 16:08:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-02-05 16:08:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-02-05 16:08:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-02-05 16:08:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:08:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:08:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:08:40,470 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:08:40,471 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:08:41,215 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2025-02-05 16:08:41,216 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:08:41,238 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:08:41,238 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:08:41,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:08:41 BoogieIcfgContainer [2025-02-05 16:08:41,238 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:08:41,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:08:41,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:08:41,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:08:41,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:08:39" (1/3) ... [2025-02-05 16:08:41,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527d776f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:08:41, skipping insertion in model container [2025-02-05 16:08:41,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:08:40" (2/3) ... [2025-02-05 16:08:41,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527d776f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:08:41, skipping insertion in model container [2025-02-05 16:08:41,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:08:41" (3/3) ... [2025-02-05 16:08:41,249 INFO L128 eAbstractionObserver]: Analyzing ICFG token_ring.13.cil-2.c [2025-02-05 16:08:41,263 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:08:41,266 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG token_ring.13.cil-2.c that has 7 procedures, 435 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2025-02-05 16:08:41,326 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:08:41,337 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;@76be5df5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:08:41,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:08:41,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 435 states, 400 states have (on average 1.58) internal successors, (632), 402 states have internal predecessors, (632), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-02-05 16:08:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:41,357 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:41,358 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] [2025-02-05 16:08:41,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:41,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:41,362 INFO L85 PathProgramCache]: Analyzing trace with hash -719649035, now seen corresponding path program 1 times [2025-02-05 16:08:41,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:41,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914807905] [2025-02-05 16:08:41,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:41,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:41,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:41,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:41,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:41,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:41,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:41,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914807905] [2025-02-05 16:08:41,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914807905] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:41,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:41,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:08:41,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166860864] [2025-02-05 16:08:41,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:42,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:08:42,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:42,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:08:42,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:08:42,023 INFO L87 Difference]: Start difference. First operand has 435 states, 400 states have (on average 1.58) internal successors, (632), 402 states have internal predecessors, (632), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:42,761 INFO L93 Difference]: Finished difference Result 1313 states and 2088 transitions. [2025-02-05 16:08:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:08:42,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:42,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:42,786 INFO L225 Difference]: With dead ends: 1313 [2025-02-05 16:08:42,786 INFO L226 Difference]: Without dead ends: 891 [2025-02-05 16:08:42,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:42,797 INFO L435 NwaCegarLoop]: 530 mSDtfsCounter, 1269 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:42,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 1898 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 16:08:42,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2025-02-05 16:08:42,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 860. [2025-02-05 16:08:42,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 797 states have (on average 1.5495608531994982) internal successors, (1235), 799 states have internal predecessors, (1235), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2025-02-05 16:08:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1334 transitions. [2025-02-05 16:08:42,928 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1334 transitions. Word has length 188 [2025-02-05 16:08:42,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:42,929 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1334 transitions. [2025-02-05 16:08:42,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:42,929 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1334 transitions. [2025-02-05 16:08:42,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:42,932 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:42,932 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] [2025-02-05 16:08:42,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 16:08:42,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:42,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:42,933 INFO L85 PathProgramCache]: Analyzing trace with hash 289665207, now seen corresponding path program 1 times [2025-02-05 16:08:42,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:42,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93275497] [2025-02-05 16:08:42,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:42,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:42,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:42,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:42,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:42,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:43,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:43,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:43,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93275497] [2025-02-05 16:08:43,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93275497] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:43,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:43,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:08:43,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664608147] [2025-02-05 16:08:43,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:43,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:08:43,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:43,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:08:43,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:43,173 INFO L87 Difference]: Start difference. First operand 860 states and 1334 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:43,962 INFO L93 Difference]: Finished difference Result 2238 states and 3511 transitions. [2025-02-05 16:08:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:08:43,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:43,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:43,971 INFO L225 Difference]: With dead ends: 2238 [2025-02-05 16:08:43,971 INFO L226 Difference]: Without dead ends: 1399 [2025-02-05 16:08:43,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:08:43,974 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 1274 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:43,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 3639 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 16:08:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2025-02-05 16:08:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1260. [2025-02-05 16:08:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1168 states have (on average 1.5410958904109588) internal successors, (1800), 1171 states have internal predecessors, (1800), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2025-02-05 16:08:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1946 transitions. [2025-02-05 16:08:44,039 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1946 transitions. Word has length 188 [2025-02-05 16:08:44,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:44,039 INFO L471 AbstractCegarLoop]: Abstraction has 1260 states and 1946 transitions. [2025-02-05 16:08:44,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1946 transitions. [2025-02-05 16:08:44,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:44,042 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:44,042 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] [2025-02-05 16:08:44,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 16:08:44,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:44,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:44,043 INFO L85 PathProgramCache]: Analyzing trace with hash 538943608, now seen corresponding path program 1 times [2025-02-05 16:08:44,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:44,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510041109] [2025-02-05 16:08:44,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:44,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:44,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:44,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:44,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:44,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:44,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:44,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510041109] [2025-02-05 16:08:44,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510041109] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:44,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:44,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:08:44,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726040065] [2025-02-05 16:08:44,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:44,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:08:44,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:44,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:08:44,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:44,351 INFO L87 Difference]: Start difference. First operand 1260 states and 1946 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:45,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:45,239 INFO L93 Difference]: Finished difference Result 3511 states and 5492 transitions. [2025-02-05 16:08:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:08:45,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:45,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:45,249 INFO L225 Difference]: With dead ends: 3511 [2025-02-05 16:08:45,249 INFO L226 Difference]: Without dead ends: 2272 [2025-02-05 16:08:45,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:08:45,253 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 1269 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:45,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 3623 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 16:08:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2025-02-05 16:08:45,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2111. [2025-02-05 16:08:45,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1959 states have (on average 1.5441551812149055) internal successors, (3025), 1966 states have internal predecessors, (3025), 115 states have call successors, (115), 30 states have call predecessors, (115), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2025-02-05 16:08:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 3271 transitions. [2025-02-05 16:08:45,351 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 3271 transitions. Word has length 188 [2025-02-05 16:08:45,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:45,352 INFO L471 AbstractCegarLoop]: Abstraction has 2111 states and 3271 transitions. [2025-02-05 16:08:45,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:45,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 3271 transitions. [2025-02-05 16:08:45,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:45,354 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:45,354 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] [2025-02-05 16:08:45,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:08:45,355 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:45,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash 824079511, now seen corresponding path program 1 times [2025-02-05 16:08:45,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:45,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116046441] [2025-02-05 16:08:45,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:45,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:45,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:45,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:45,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:45,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:45,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:45,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116046441] [2025-02-05 16:08:45,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116046441] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:45,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:45,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:08:45,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887862560] [2025-02-05 16:08:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:45,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:08:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:45,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:08:45,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:45,539 INFO L87 Difference]: Start difference. First operand 2111 states and 3271 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:46,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:46,298 INFO L93 Difference]: Finished difference Result 6256 states and 9855 transitions. [2025-02-05 16:08:46,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:08:46,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:46,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:46,317 INFO L225 Difference]: With dead ends: 6256 [2025-02-05 16:08:46,318 INFO L226 Difference]: Without dead ends: 4166 [2025-02-05 16:08:46,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:08:46,326 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 1264 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:46,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 3611 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 16:08:46,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2025-02-05 16:08:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 3960. [2025-02-05 16:08:46,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 3682 states have (on average 1.5613796849538295) internal successors, (5749), 3703 states have internal predecessors, (5749), 203 states have call successors, (203), 54 states have call predecessors, (203), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2025-02-05 16:08:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 6219 transitions. [2025-02-05 16:08:46,500 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 6219 transitions. Word has length 188 [2025-02-05 16:08:46,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:46,500 INFO L471 AbstractCegarLoop]: Abstraction has 3960 states and 6219 transitions. [2025-02-05 16:08:46,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:46,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 6219 transitions. [2025-02-05 16:08:46,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:46,502 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:46,502 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] [2025-02-05 16:08:46,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:08:46,503 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:46,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:46,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1526014104, now seen corresponding path program 1 times [2025-02-05 16:08:46,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:46,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114644656] [2025-02-05 16:08:46,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:46,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:46,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:46,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:46,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:46,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:46,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:46,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114644656] [2025-02-05 16:08:46,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114644656] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:46,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:46,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:08:46,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694798662] [2025-02-05 16:08:46,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:46,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:08:46,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:46,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:08:46,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:46,623 INFO L87 Difference]: Start difference. First operand 3960 states and 6219 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:47,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:47,492 INFO L93 Difference]: Finished difference Result 12315 states and 19761 transitions. [2025-02-05 16:08:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:08:47,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:47,522 INFO L225 Difference]: With dead ends: 12315 [2025-02-05 16:08:47,522 INFO L226 Difference]: Without dead ends: 8376 [2025-02-05 16:08:47,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:08:47,533 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 1259 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:47,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 3599 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 16:08:47,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8376 states. [2025-02-05 16:08:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8376 to 8081. [2025-02-05 16:08:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8081 states, 7533 states have (on average 1.5909996017522898) internal successors, (11985), 7600 states have internal predecessors, (11985), 379 states have call successors, (379), 102 states have call predecessors, (379), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2025-02-05 16:08:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8081 states to 8081 states and 12999 transitions. [2025-02-05 16:08:47,776 INFO L78 Accepts]: Start accepts. Automaton has 8081 states and 12999 transitions. Word has length 188 [2025-02-05 16:08:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:47,777 INFO L471 AbstractCegarLoop]: Abstraction has 8081 states and 12999 transitions. [2025-02-05 16:08:47,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 8081 states and 12999 transitions. [2025-02-05 16:08:47,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:47,784 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:47,785 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] [2025-02-05 16:08:47,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 16:08:47,785 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:47,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1133015159, now seen corresponding path program 1 times [2025-02-05 16:08:47,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:47,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657056910] [2025-02-05 16:08:47,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:47,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:47,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:47,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:47,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:47,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:47,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:47,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657056910] [2025-02-05 16:08:47,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657056910] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:47,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:47,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:08:47,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427407320] [2025-02-05 16:08:47,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:47,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:08:47,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:47,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:08:47,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:47,974 INFO L87 Difference]: Start difference. First operand 8081 states and 12999 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:49,041 INFO L93 Difference]: Finished difference Result 26066 states and 43091 transitions. [2025-02-05 16:08:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:08:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:49,115 INFO L225 Difference]: With dead ends: 26066 [2025-02-05 16:08:49,115 INFO L226 Difference]: Without dead ends: 18006 [2025-02-05 16:08:49,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:08:49,135 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 1254 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 3587 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:49,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 3587 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 16:08:49,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18006 states. [2025-02-05 16:08:49,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18006 to 17538. [2025-02-05 16:08:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17538 states, 16396 states have (on average 1.6294828006830935) internal successors, (26717), 16609 states have internal predecessors, (26717), 731 states have call successors, (731), 198 states have call predecessors, (731), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-02-05 16:08:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17538 states to 17538 states and 29203 transitions. [2025-02-05 16:08:49,689 INFO L78 Accepts]: Start accepts. Automaton has 17538 states and 29203 transitions. Word has length 188 [2025-02-05 16:08:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:49,690 INFO L471 AbstractCegarLoop]: Abstraction has 17538 states and 29203 transitions. [2025-02-05 16:08:49,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:49,690 INFO L276 IsEmpty]: Start isEmpty. Operand 17538 states and 29203 transitions. [2025-02-05 16:08:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:49,696 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:49,696 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] [2025-02-05 16:08:49,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 16:08:49,696 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:49,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:49,697 INFO L85 PathProgramCache]: Analyzing trace with hash -680777544, now seen corresponding path program 1 times [2025-02-05 16:08:49,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:49,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321574056] [2025-02-05 16:08:49,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:49,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:49,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:49,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:49,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:49,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:49,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:49,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321574056] [2025-02-05 16:08:49,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321574056] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:49,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:49,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:08:49,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850955240] [2025-02-05 16:08:49,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:49,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:08:49,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:49,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:08:49,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:49,823 INFO L87 Difference]: Start difference. First operand 17538 states and 29203 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:51,220 INFO L93 Difference]: Finished difference Result 58253 states and 100369 transitions. [2025-02-05 16:08:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:08:51,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:51,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:51,384 INFO L225 Difference]: With dead ends: 58253 [2025-02-05 16:08:51,384 INFO L226 Difference]: Without dead ends: 40736 [2025-02-05 16:08:51,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:08:51,456 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 1249 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 3575 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:51,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 3575 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 16:08:51,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40736 states. [2025-02-05 16:08:52,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40736 to 39935. [2025-02-05 16:08:52,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39935 states, 37443 states have (on average 1.6730764094757364) internal successors, (62645), 38110 states have internal predecessors, (62645), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2025-02-05 16:08:52,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39935 states to 39935 states and 69611 transitions. [2025-02-05 16:08:52,780 INFO L78 Accepts]: Start accepts. Automaton has 39935 states and 69611 transitions. Word has length 188 [2025-02-05 16:08:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:52,781 INFO L471 AbstractCegarLoop]: Abstraction has 39935 states and 69611 transitions. [2025-02-05 16:08:52,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 39935 states and 69611 transitions. [2025-02-05 16:08:52,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:52,793 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:52,793 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] [2025-02-05 16:08:52,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 16:08:52,793 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:52,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:52,794 INFO L85 PathProgramCache]: Analyzing trace with hash 369091671, now seen corresponding path program 1 times [2025-02-05 16:08:52,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:52,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250685940] [2025-02-05 16:08:52,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:52,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:52,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:52,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:52,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:52,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:52,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:52,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250685940] [2025-02-05 16:08:52,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250685940] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:52,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:52,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:08:52,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227087669] [2025-02-05 16:08:52,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:52,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:08:52,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:52,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:08:52,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:08:52,924 INFO L87 Difference]: Start difference. First operand 39935 states and 69611 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:08:55,045 INFO L93 Difference]: Finished difference Result 136044 states and 247447 transitions. [2025-02-05 16:08:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:08:55,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:08:55,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:08:55,562 INFO L225 Difference]: With dead ends: 136044 [2025-02-05 16:08:55,562 INFO L226 Difference]: Without dead ends: 96130 [2025-02-05 16:08:55,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:08:55,638 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 1244 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 16:08:55,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 3563 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 16:08:55,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96130 states. [2025-02-05 16:08:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96130 to 94692. [2025-02-05 16:08:57,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94692 states, 89014 states have (on average 1.7181229918889163) internal successors, (152937), 91075 states have internal predecessors, (152937), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2025-02-05 16:08:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94692 states to 94692 states and 175007 transitions. [2025-02-05 16:08:58,575 INFO L78 Accepts]: Start accepts. Automaton has 94692 states and 175007 transitions. Word has length 188 [2025-02-05 16:08:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:08:58,576 INFO L471 AbstractCegarLoop]: Abstraction has 94692 states and 175007 transitions. [2025-02-05 16:08:58,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:08:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 94692 states and 175007 transitions. [2025-02-05 16:08:58,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:08:58,597 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:08:58,597 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] [2025-02-05 16:08:58,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 16:08:58,597 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:08:58,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:08:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 541505752, now seen corresponding path program 1 times [2025-02-05 16:08:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:08:58,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855484024] [2025-02-05 16:08:58,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:08:58,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:08:58,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:08:58,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:08:58,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:08:58,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:08:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:08:58,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:08:58,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855484024] [2025-02-05 16:08:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855484024] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:08:58,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:08:58,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:08:58,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467588104] [2025-02-05 16:08:58,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:08:58,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:08:58,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:08:58,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:08:58,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:08:58,735 INFO L87 Difference]: Start difference. First operand 94692 states and 175007 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:09:02,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:09:02,005 INFO L93 Difference]: Finished difference Result 230954 states and 443236 transitions. [2025-02-05 16:09:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 16:09:02,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:09:02,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:09:02,582 INFO L225 Difference]: With dead ends: 230954 [2025-02-05 16:09:02,583 INFO L226 Difference]: Without dead ends: 136283 [2025-02-05 16:09:02,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:09:02,905 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 892 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:09:02,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1314 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 16:09:03,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136283 states. [2025-02-05 16:09:06,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136283 to 94692. [2025-02-05 16:09:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94692 states, 89014 states have (on average 1.7166737816523243) internal successors, (152808), 91075 states have internal predecessors, (152808), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2025-02-05 16:09:07,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94692 states to 94692 states and 174878 transitions. [2025-02-05 16:09:07,344 INFO L78 Accepts]: Start accepts. Automaton has 94692 states and 174878 transitions. Word has length 188 [2025-02-05 16:09:07,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:09:07,345 INFO L471 AbstractCegarLoop]: Abstraction has 94692 states and 174878 transitions. [2025-02-05 16:09:07,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:09:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 94692 states and 174878 transitions. [2025-02-05 16:09:07,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:09:07,368 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:09:07,368 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] [2025-02-05 16:09:07,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 16:09:07,369 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:09:07,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:09:07,369 INFO L85 PathProgramCache]: Analyzing trace with hash -343230055, now seen corresponding path program 1 times [2025-02-05 16:09:07,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:09:07,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883164782] [2025-02-05 16:09:07,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:09:07,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:09:07,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:09:07,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:09:07,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:09:07,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:09:07,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:09:07,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:09:07,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883164782] [2025-02-05 16:09:07,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883164782] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:09:07,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:09:07,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:09:07,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252977238] [2025-02-05 16:09:07,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:09:07,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:09:07,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:09:07,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:09:07,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:09:07,528 INFO L87 Difference]: Start difference. First operand 94692 states and 174878 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:09:13,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:09:13,169 INFO L93 Difference]: Finished difference Result 325323 states and 633402 transitions. [2025-02-05 16:09:13,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 16:09:13,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-02-05 16:09:13,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:09:13,999 INFO L225 Difference]: With dead ends: 325323 [2025-02-05 16:09:14,000 INFO L226 Difference]: Without dead ends: 230652 [2025-02-05 16:09:14,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-05 16:09:14,219 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 1228 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:09:14,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 3518 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-05 16:09:14,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230652 states. [2025-02-05 16:09:20,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230652 to 228263. [2025-02-05 16:09:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228263 states, 214755 states have (on average 1.755209424693255) internal successors, (376940), 221062 states have internal predecessors, (376940), 5659 states have call successors, (5659), 1542 states have call predecessors, (5659), 7848 states have return successors, (71195), 5914 states have call predecessors, (71195), 5659 states have call successors, (71195) [2025-02-05 16:09:22,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228263 states to 228263 states and 453794 transitions. [2025-02-05 16:09:22,422 INFO L78 Accepts]: Start accepts. Automaton has 228263 states and 453794 transitions. Word has length 188 [2025-02-05 16:09:22,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:09:22,424 INFO L471 AbstractCegarLoop]: Abstraction has 228263 states and 453794 transitions. [2025-02-05 16:09:22,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 16:09:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 228263 states and 453794 transitions. [2025-02-05 16:09:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 16:09:22,455 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:09:22,456 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] [2025-02-05 16:09:22,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 16:09:22,456 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:09:22,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:09:22,456 INFO L85 PathProgramCache]: Analyzing trace with hash -648864584, now seen corresponding path program 1 times [2025-02-05 16:09:22,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:09:22,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258150736] [2025-02-05 16:09:22,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:09:22,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:09:22,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 16:09:22,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 16:09:22,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:09:22,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:09:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:09:22,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:09:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258150736] [2025-02-05 16:09:22,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258150736] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:09:22,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:09:22,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:09:22,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265502443] [2025-02-05 16:09:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:09:22,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:09:22,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:09:22,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:09:22,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:09:22,545 INFO L87 Difference]: Start difference. First operand 228263 states and 453794 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)