./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1 --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 eb6a86313c6847913ca8b6f4f78c128447d9c9cbacc492e7ef1a5540e3f6a711 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:53:19,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:53:19,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:53:19,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:53:19,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:53:19,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:53:19,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:53:19,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:53:19,354 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:53:19,354 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:53:19,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:53:19,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:53:19,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:53:19,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:53:19,355 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:53:19,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:53:19,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:53:19,355 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:53:19,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:53:19,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:53:19,356 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:53:19,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:53:19,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:53:19,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:53:19,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:53:19,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:53:19,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:53:19,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:53:19,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:53:19,358 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1 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 -> eb6a86313c6847913ca8b6f4f78c128447d9c9cbacc492e7ef1a5540e3f6a711 [2024-12-02 13:53:19,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:53:19,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:53:19,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:53:19,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:53:19,604 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:53:19,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 13:53:22,284 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/data/9c94a009d/66cbcedcc0bc462988597661956d4f83/FLAGd2adbe0de [2024-12-02 13:53:22,493 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:53:22,494 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 13:53:22,505 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/data/9c94a009d/66cbcedcc0bc462988597661956d4f83/FLAGd2adbe0de [2024-12-02 13:53:22,519 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/data/9c94a009d/66cbcedcc0bc462988597661956d4f83 [2024-12-02 13:53:22,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:53:22,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:53:22,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:53:22,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:53:22,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:53:22,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:22,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12831ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22, skipping insertion in model container [2024-12-02 13:53:22,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:22,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:53:22,769 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-12-02 13:53:22,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:53:22,829 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:53:22,885 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-12-02 13:53:22,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:53:22,933 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:53:22,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22 WrapperNode [2024-12-02 13:53:22,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:53:22,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:53:22,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:53:22,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:53:22,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:22,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:22,979 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 838 [2024-12-02 13:53:22,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:53:22,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:53:22,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:53:22,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:53:22,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:22,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:22,989 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,006 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 13:53:23,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,016 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:53:23,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:53:23,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:53:23,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:53:23,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (1/1) ... [2024-12-02 13:53:23,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:53:23,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:53:23,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:53:23,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_905475cc-58c5-4add-9ded-7b5ea5367f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:53:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:53:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:53:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:53:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:53:23,200 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:53:23,202 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:53:23,899 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-12-02 13:53:23,899 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:53:23,914 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:53:23,914 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:53:23,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:53:23 BoogieIcfgContainer [2024-12-02 13:53:23,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:53:23,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:53:23,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:53:23,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:53:23,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:53:22" (1/3) ... [2024-12-02 13:53:23,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732d7ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:53:23, skipping insertion in model container [2024-12-02 13:53:23,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:53:22" (2/3) ... [2024-12-02 13:53:23,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732d7ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:53:23, skipping insertion in model container [2024-12-02 13:53:23,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:53:23" (3/3) ... [2024-12-02 13:53:23,923 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 13:53:23,938 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:53:23,940 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 206 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 13:53:23,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:53:24,007 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;@19aeff98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:53:24,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:53:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.7205882352941178) internal successors, (351), 205 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:24,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 13:53:24,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:24,020 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] [2024-12-02 13:53:24,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:24,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:24,025 INFO L85 PathProgramCache]: Analyzing trace with hash -465870500, now seen corresponding path program 1 times [2024-12-02 13:53:24,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:24,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362151307] [2024-12-02 13:53:24,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:24,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:24,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:24,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:24,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362151307] [2024-12-02 13:53:24,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362151307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:24,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:24,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:53:24,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664749112] [2024-12-02 13:53:24,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:24,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:24,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:24,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:24,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:24,638 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.7205882352941178) internal successors, (351), 205 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:24,908 INFO L93 Difference]: Finished difference Result 828 states and 1339 transitions. [2024-12-02 13:53:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:53:24,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 13:53:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:24,922 INFO L225 Difference]: With dead ends: 828 [2024-12-02 13:53:24,922 INFO L226 Difference]: Without dead ends: 713 [2024-12-02 13:53:24,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:53:24,927 INFO L435 NwaCegarLoop]: 356 mSDtfsCounter, 2417 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2417 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:24,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2417 Valid, 2321 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:53:24,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-12-02 13:53:24,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 314. [2024-12-02 13:53:24,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.5047923322683705) internal successors, (471), 313 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 471 transitions. [2024-12-02 13:53:24,977 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 471 transitions. Word has length 79 [2024-12-02 13:53:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:24,978 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 471 transitions. [2024-12-02 13:53:24,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:24,978 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 471 transitions. [2024-12-02 13:53:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 13:53:24,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:24,980 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] [2024-12-02 13:53:24,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:53:24,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:24,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1819425779, now seen corresponding path program 1 times [2024-12-02 13:53:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584647449] [2024-12-02 13:53:24,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:25,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:25,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584647449] [2024-12-02 13:53:25,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584647449] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:25,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:25,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:53:25,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581700896] [2024-12-02 13:53:25,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:25,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:25,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:25,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:25,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:25,326 INFO L87 Difference]: Start difference. First operand 314 states and 471 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:25,583 INFO L93 Difference]: Finished difference Result 1370 states and 2124 transitions. [2024-12-02 13:53:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:53:25,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-02 13:53:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:25,589 INFO L225 Difference]: With dead ends: 1370 [2024-12-02 13:53:25,589 INFO L226 Difference]: Without dead ends: 1132 [2024-12-02 13:53:25,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:25,591 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 1200 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:25,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1337 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-12-02 13:53:25,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1124. [2024-12-02 13:53:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 1.545859305431879) internal successors, (1736), 1123 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:25,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1736 transitions. [2024-12-02 13:53:25,639 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1736 transitions. Word has length 80 [2024-12-02 13:53:25,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:25,639 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1736 transitions. [2024-12-02 13:53:25,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:25,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1736 transitions. [2024-12-02 13:53:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 13:53:25,643 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:25,643 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] [2024-12-02 13:53:25,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:53:25,644 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:25,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1286257119, now seen corresponding path program 1 times [2024-12-02 13:53:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:25,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356230777] [2024-12-02 13:53:25,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:25,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:25,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:25,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356230777] [2024-12-02 13:53:25,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356230777] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:25,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:25,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:53:25,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16242667] [2024-12-02 13:53:25,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:25,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:53:25,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:25,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:53:25,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:25,860 INFO L87 Difference]: Start difference. First operand 1124 states and 1736 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:26,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:26,154 INFO L93 Difference]: Finished difference Result 2981 states and 4661 transitions. [2024-12-02 13:53:26,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:53:26,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 13:53:26,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:26,163 INFO L225 Difference]: With dead ends: 2981 [2024-12-02 13:53:26,163 INFO L226 Difference]: Without dead ends: 1934 [2024-12-02 13:53:26,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:26,166 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 1111 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:26,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 287 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:26,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-12-02 13:53:26,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1932. [2024-12-02 13:53:26,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1931 states have (on average 1.5546349041947178) internal successors, (3002), 1931 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3002 transitions. [2024-12-02 13:53:26,230 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3002 transitions. Word has length 81 [2024-12-02 13:53:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:26,230 INFO L471 AbstractCegarLoop]: Abstraction has 1932 states and 3002 transitions. [2024-12-02 13:53:26,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:26,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3002 transitions. [2024-12-02 13:53:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 13:53:26,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:26,233 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] [2024-12-02 13:53:26,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:53:26,233 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:26,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:26,234 INFO L85 PathProgramCache]: Analyzing trace with hash 963502145, now seen corresponding path program 1 times [2024-12-02 13:53:26,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:26,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239771589] [2024-12-02 13:53:26,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:26,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:26,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:26,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:26,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239771589] [2024-12-02 13:53:26,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239771589] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:26,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:26,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:53:26,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909296800] [2024-12-02 13:53:26,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:26,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:53:26,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:26,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:53:26,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:26,389 INFO L87 Difference]: Start difference. First operand 1932 states and 3002 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:26,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:26,628 INFO L93 Difference]: Finished difference Result 5245 states and 8233 transitions. [2024-12-02 13:53:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:53:26,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 13:53:26,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:26,637 INFO L225 Difference]: With dead ends: 5245 [2024-12-02 13:53:26,637 INFO L226 Difference]: Without dead ends: 3454 [2024-12-02 13:53:26,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:26,639 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 1065 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:26,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 298 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:26,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2024-12-02 13:53:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3452. [2024-12-02 13:53:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.5609968125181106) internal successors, (5387), 3451 states have internal predecessors, (5387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 5387 transitions. [2024-12-02 13:53:26,694 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 5387 transitions. Word has length 81 [2024-12-02 13:53:26,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:26,694 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 5387 transitions. [2024-12-02 13:53:26,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:26,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 5387 transitions. [2024-12-02 13:53:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 13:53:26,696 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:26,696 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] [2024-12-02 13:53:26,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:53:26,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:26,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:26,697 INFO L85 PathProgramCache]: Analyzing trace with hash -990576080, now seen corresponding path program 1 times [2024-12-02 13:53:26,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:26,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244277285] [2024-12-02 13:53:26,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:26,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:26,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244277285] [2024-12-02 13:53:26,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244277285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:26,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:26,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:53:26,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956702199] [2024-12-02 13:53:26,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:26,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:53:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:26,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:53:26,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:26,812 INFO L87 Difference]: Start difference. First operand 3452 states and 5387 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:27,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:27,068 INFO L93 Difference]: Finished difference Result 9853 states and 15454 transitions. [2024-12-02 13:53:27,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:53:27,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 13:53:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:27,083 INFO L225 Difference]: With dead ends: 9853 [2024-12-02 13:53:27,083 INFO L226 Difference]: Without dead ends: 6508 [2024-12-02 13:53:27,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:27,086 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1071 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:27,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 287 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:27,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6508 states. [2024-12-02 13:53:27,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6508 to 6506. [2024-12-02 13:53:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6505 states have (on average 1.5600307455803228) internal successors, (10148), 6505 states have internal predecessors, (10148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 10148 transitions. [2024-12-02 13:53:27,243 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 10148 transitions. Word has length 81 [2024-12-02 13:53:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:27,243 INFO L471 AbstractCegarLoop]: Abstraction has 6506 states and 10148 transitions. [2024-12-02 13:53:27,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 10148 transitions. [2024-12-02 13:53:27,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 13:53:27,246 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:27,246 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] [2024-12-02 13:53:27,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:53:27,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:27,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:27,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2100922190, now seen corresponding path program 1 times [2024-12-02 13:53:27,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:27,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280245225] [2024-12-02 13:53:27,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:27,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:27,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:27,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280245225] [2024-12-02 13:53:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280245225] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:27,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:27,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:53:27,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975586726] [2024-12-02 13:53:27,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:27,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:53:27,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:27,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:53:27,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:27,383 INFO L87 Difference]: Start difference. First operand 6506 states and 10148 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:27,661 INFO L93 Difference]: Finished difference Result 19180 states and 29998 transitions. [2024-12-02 13:53:27,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:53:27,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 13:53:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:27,704 INFO L225 Difference]: With dead ends: 19180 [2024-12-02 13:53:27,704 INFO L226 Difference]: Without dead ends: 12728 [2024-12-02 13:53:27,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:27,713 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1129 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:27,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 283 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:27,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12728 states. [2024-12-02 13:53:27,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12728 to 12726. [2024-12-02 13:53:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12726 states, 12725 states have (on average 1.5544990176817288) internal successors, (19781), 12725 states have internal predecessors, (19781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12726 states to 12726 states and 19781 transitions. [2024-12-02 13:53:27,967 INFO L78 Accepts]: Start accepts. Automaton has 12726 states and 19781 transitions. Word has length 81 [2024-12-02 13:53:27,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:27,967 INFO L471 AbstractCegarLoop]: Abstraction has 12726 states and 19781 transitions. [2024-12-02 13:53:27,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:27,967 INFO L276 IsEmpty]: Start isEmpty. Operand 12726 states and 19781 transitions. [2024-12-02 13:53:27,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:53:27,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:27,970 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] [2024-12-02 13:53:27,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:53:27,970 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:27,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:27,970 INFO L85 PathProgramCache]: Analyzing trace with hash -336684807, now seen corresponding path program 1 times [2024-12-02 13:53:27,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:27,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156824375] [2024-12-02 13:53:27,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:27,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:28,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:28,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156824375] [2024-12-02 13:53:28,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156824375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:28,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:28,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:53:28,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068592045] [2024-12-02 13:53:28,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:28,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:53:28,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:28,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:53:28,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:28,228 INFO L87 Difference]: Start difference. First operand 12726 states and 19781 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:28,293 INFO L93 Difference]: Finished difference Result 13048 states and 20262 transitions. [2024-12-02 13:53:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:53:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 13:53:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:28,313 INFO L225 Difference]: With dead ends: 13048 [2024-12-02 13:53:28,313 INFO L226 Difference]: Without dead ends: 13046 [2024-12-02 13:53:28,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:28,315 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 0 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:28,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1118 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:53:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13046 states. [2024-12-02 13:53:28,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13046 to 13046. [2024-12-02 13:53:28,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13046 states, 13045 states have (on average 1.5408968953622078) internal successors, (20101), 13045 states have internal predecessors, (20101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13046 states to 13046 states and 20101 transitions. [2024-12-02 13:53:28,460 INFO L78 Accepts]: Start accepts. Automaton has 13046 states and 20101 transitions. Word has length 82 [2024-12-02 13:53:28,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:28,461 INFO L471 AbstractCegarLoop]: Abstraction has 13046 states and 20101 transitions. [2024-12-02 13:53:28,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 13046 states and 20101 transitions. [2024-12-02 13:53:28,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 13:53:28,463 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:28,463 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] [2024-12-02 13:53:28,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:53:28,464 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:28,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:28,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1586000185, now seen corresponding path program 1 times [2024-12-02 13:53:28,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:28,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813088068] [2024-12-02 13:53:28,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:28,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:28,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813088068] [2024-12-02 13:53:28,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813088068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:28,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:28,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:53:28,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667463430] [2024-12-02 13:53:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:28,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:28,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:28,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:28,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:28,903 INFO L87 Difference]: Start difference. First operand 13046 states and 20101 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:29,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:29,628 INFO L93 Difference]: Finished difference Result 24507 states and 37502 transitions. [2024-12-02 13:53:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:53:29,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-12-02 13:53:29,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:29,653 INFO L225 Difference]: With dead ends: 24507 [2024-12-02 13:53:29,653 INFO L226 Difference]: Without dead ends: 17749 [2024-12-02 13:53:29,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:53:29,660 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 1825 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:29,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1825 Valid, 907 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:53:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17749 states. [2024-12-02 13:53:29,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17749 to 13227. [2024-12-02 13:53:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 1.5387872372599425) internal successors, (20352), 13226 states have internal predecessors, (20352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:29,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 20352 transitions. [2024-12-02 13:53:29,909 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 20352 transitions. Word has length 83 [2024-12-02 13:53:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:29,909 INFO L471 AbstractCegarLoop]: Abstraction has 13227 states and 20352 transitions. [2024-12-02 13:53:29,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 20352 transitions. [2024-12-02 13:53:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 13:53:29,914 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:29,914 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] [2024-12-02 13:53:29,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:53:29,914 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:29,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:29,915 INFO L85 PathProgramCache]: Analyzing trace with hash 640573063, now seen corresponding path program 1 times [2024-12-02 13:53:29,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:29,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411509578] [2024-12-02 13:53:29,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:29,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:30,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:30,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411509578] [2024-12-02 13:53:30,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411509578] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:30,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:30,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:53:30,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105210913] [2024-12-02 13:53:30,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:30,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:30,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:30,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:30,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:30,371 INFO L87 Difference]: Start difference. First operand 13227 states and 20352 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:31,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:31,037 INFO L93 Difference]: Finished difference Result 21341 states and 32644 transitions. [2024-12-02 13:53:31,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:53:31,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-12-02 13:53:31,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:31,078 INFO L225 Difference]: With dead ends: 21341 [2024-12-02 13:53:31,078 INFO L226 Difference]: Without dead ends: 19789 [2024-12-02 13:53:31,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:53:31,085 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1252 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:31,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1084 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:53:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19789 states. [2024-12-02 13:53:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19789 to 13227. [2024-12-02 13:53:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 1.5386360199606834) internal successors, (20350), 13226 states have internal predecessors, (20350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 20350 transitions. [2024-12-02 13:53:31,276 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 20350 transitions. Word has length 83 [2024-12-02 13:53:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:31,276 INFO L471 AbstractCegarLoop]: Abstraction has 13227 states and 20350 transitions. [2024-12-02 13:53:31,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 20350 transitions. [2024-12-02 13:53:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 13:53:31,280 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:31,280 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] [2024-12-02 13:53:31,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:53:31,280 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:31,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:31,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1864782503, now seen corresponding path program 1 times [2024-12-02 13:53:31,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:31,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341747401] [2024-12-02 13:53:31,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:31,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:31,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:31,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341747401] [2024-12-02 13:53:31,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341747401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:31,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:31,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:53:31,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111812108] [2024-12-02 13:53:31,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:31,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:31,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:31,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:31,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:31,732 INFO L87 Difference]: Start difference. First operand 13227 states and 20350 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:32,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:32,483 INFO L93 Difference]: Finished difference Result 24711 states and 37700 transitions. [2024-12-02 13:53:32,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:53:32,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-12-02 13:53:32,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:32,510 INFO L225 Difference]: With dead ends: 24711 [2024-12-02 13:53:32,510 INFO L226 Difference]: Without dead ends: 20533 [2024-12-02 13:53:32,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:53:32,519 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 1412 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:32,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 1193 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:53:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20533 states. [2024-12-02 13:53:32,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20533 to 13531. [2024-12-02 13:53:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13531 states, 13530 states have (on average 1.536289726533629) internal successors, (20786), 13530 states have internal predecessors, (20786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13531 states to 13531 states and 20786 transitions. [2024-12-02 13:53:32,817 INFO L78 Accepts]: Start accepts. Automaton has 13531 states and 20786 transitions. Word has length 83 [2024-12-02 13:53:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:32,817 INFO L471 AbstractCegarLoop]: Abstraction has 13531 states and 20786 transitions. [2024-12-02 13:53:32,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 13531 states and 20786 transitions. [2024-12-02 13:53:32,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 13:53:32,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:32,823 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] [2024-12-02 13:53:32,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:53:32,824 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:32,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1599214311, now seen corresponding path program 1 times [2024-12-02 13:53:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:32,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781643134] [2024-12-02 13:53:32,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:33,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:33,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:33,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781643134] [2024-12-02 13:53:33,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781643134] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:33,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:33,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:53:33,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347522444] [2024-12-02 13:53:33,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:33,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:33,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:33,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:33,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:33,263 INFO L87 Difference]: Start difference. First operand 13531 states and 20786 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:34,060 INFO L93 Difference]: Finished difference Result 30281 states and 46211 transitions. [2024-12-02 13:53:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:53:34,061 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-12-02 13:53:34,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:34,088 INFO L225 Difference]: With dead ends: 30281 [2024-12-02 13:53:34,088 INFO L226 Difference]: Without dead ends: 20959 [2024-12-02 13:53:34,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:53:34,097 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 1343 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:34,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 1180 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:53:34,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20959 states. [2024-12-02 13:53:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20959 to 13835. [2024-12-02 13:53:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13835 states, 13834 states have (on average 1.531227410727194) internal successors, (21183), 13834 states have internal predecessors, (21183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13835 states to 13835 states and 21183 transitions. [2024-12-02 13:53:34,329 INFO L78 Accepts]: Start accepts. Automaton has 13835 states and 21183 transitions. Word has length 83 [2024-12-02 13:53:34,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:34,329 INFO L471 AbstractCegarLoop]: Abstraction has 13835 states and 21183 transitions. [2024-12-02 13:53:34,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 13835 states and 21183 transitions. [2024-12-02 13:53:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 13:53:34,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:34,333 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] [2024-12-02 13:53:34,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:53:34,333 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:34,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:34,333 INFO L85 PathProgramCache]: Analyzing trace with hash 67573609, now seen corresponding path program 1 times [2024-12-02 13:53:34,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:34,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389203201] [2024-12-02 13:53:34,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:34,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:34,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:34,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389203201] [2024-12-02 13:53:34,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389203201] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:34,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:34,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:53:34,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401826482] [2024-12-02 13:53:34,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:34,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:53:34,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:34,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:53:34,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:34,405 INFO L87 Difference]: Start difference. First operand 13835 states and 21183 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:34,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:34,667 INFO L93 Difference]: Finished difference Result 38547 states and 59132 transitions. [2024-12-02 13:53:34,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:53:34,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-12-02 13:53:34,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:34,689 INFO L225 Difference]: With dead ends: 38547 [2024-12-02 13:53:34,689 INFO L226 Difference]: Without dead ends: 24775 [2024-12-02 13:53:34,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:34,733 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 1158 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:34,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 288 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:34,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24775 states. [2024-12-02 13:53:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24775 to 24773. [2024-12-02 13:53:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24773 states, 24772 states have (on average 1.528257710318101) internal successors, (37858), 24772 states have internal predecessors, (37858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24773 states to 24773 states and 37858 transitions. [2024-12-02 13:53:34,976 INFO L78 Accepts]: Start accepts. Automaton has 24773 states and 37858 transitions. Word has length 83 [2024-12-02 13:53:34,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:34,977 INFO L471 AbstractCegarLoop]: Abstraction has 24773 states and 37858 transitions. [2024-12-02 13:53:34,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:34,977 INFO L276 IsEmpty]: Start isEmpty. Operand 24773 states and 37858 transitions. [2024-12-02 13:53:34,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 13:53:34,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:34,980 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] [2024-12-02 13:53:34,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:53:34,981 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:34,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:34,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1469957880, now seen corresponding path program 1 times [2024-12-02 13:53:34,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:34,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947762566] [2024-12-02 13:53:34,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:34,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:35,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:35,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947762566] [2024-12-02 13:53:35,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947762566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:35,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:35,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:53:35,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242394553] [2024-12-02 13:53:35,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:35,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:53:35,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:35,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:53:35,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:35,026 INFO L87 Difference]: Start difference. First operand 24773 states and 37858 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:35,125 INFO L93 Difference]: Finished difference Result 40315 states and 61718 transitions. [2024-12-02 13:53:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:53:35,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-12-02 13:53:35,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:35,151 INFO L225 Difference]: With dead ends: 40315 [2024-12-02 13:53:35,151 INFO L226 Difference]: Without dead ends: 29213 [2024-12-02 13:53:35,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:35,162 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 174 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:35,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 568 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:53:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29213 states. [2024-12-02 13:53:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29213 to 28943. [2024-12-02 13:53:35,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28943 states, 28942 states have (on average 1.5115057701610117) internal successors, (43746), 28942 states have internal predecessors, (43746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:35,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28943 states to 28943 states and 43746 transitions. [2024-12-02 13:53:35,462 INFO L78 Accepts]: Start accepts. Automaton has 28943 states and 43746 transitions. Word has length 84 [2024-12-02 13:53:35,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:35,463 INFO L471 AbstractCegarLoop]: Abstraction has 28943 states and 43746 transitions. [2024-12-02 13:53:35,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:35,463 INFO L276 IsEmpty]: Start isEmpty. Operand 28943 states and 43746 transitions. [2024-12-02 13:53:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 13:53:35,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:35,467 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] [2024-12-02 13:53:35,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:53:35,467 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:35,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:35,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1045499168, now seen corresponding path program 1 times [2024-12-02 13:53:35,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:35,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434810108] [2024-12-02 13:53:35,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:35,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:35,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:35,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434810108] [2024-12-02 13:53:35,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434810108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:35,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:35,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:53:35,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832974279] [2024-12-02 13:53:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:35,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:53:35,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:35,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:53:35,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:53:35,735 INFO L87 Difference]: Start difference. First operand 28943 states and 43746 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:35,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:35,964 INFO L93 Difference]: Finished difference Result 79451 states and 120132 transitions. [2024-12-02 13:53:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:53:35,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-12-02 13:53:35,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:36,020 INFO L225 Difference]: With dead ends: 79451 [2024-12-02 13:53:36,021 INFO L226 Difference]: Without dead ends: 52457 [2024-12-02 13:53:36,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:53:36,042 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 190 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:36,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 695 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:53:36,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52457 states. [2024-12-02 13:53:36,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52457 to 52119. [2024-12-02 13:53:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52119 states, 52118 states have (on average 1.4975632219194903) internal successors, (78050), 52118 states have internal predecessors, (78050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:36,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52119 states to 52119 states and 78050 transitions. [2024-12-02 13:53:36,769 INFO L78 Accepts]: Start accepts. Automaton has 52119 states and 78050 transitions. Word has length 84 [2024-12-02 13:53:36,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:36,769 INFO L471 AbstractCegarLoop]: Abstraction has 52119 states and 78050 transitions. [2024-12-02 13:53:36,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:36,769 INFO L276 IsEmpty]: Start isEmpty. Operand 52119 states and 78050 transitions. [2024-12-02 13:53:36,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 13:53:36,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:36,781 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] [2024-12-02 13:53:36,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:53:36,781 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:36,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:36,782 INFO L85 PathProgramCache]: Analyzing trace with hash -720169287, now seen corresponding path program 1 times [2024-12-02 13:53:36,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:36,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027926478] [2024-12-02 13:53:36,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:36,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:36,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:36,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027926478] [2024-12-02 13:53:36,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027926478] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:36,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:36,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:53:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395357267] [2024-12-02 13:53:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:36,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:53:36,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:36,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:53:36,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:36,843 INFO L87 Difference]: Start difference. First operand 52119 states and 78050 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:37,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:37,170 INFO L93 Difference]: Finished difference Result 119878 states and 179656 transitions. [2024-12-02 13:53:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:53:37,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-12-02 13:53:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:37,250 INFO L225 Difference]: With dead ends: 119878 [2024-12-02 13:53:37,250 INFO L226 Difference]: Without dead ends: 73046 [2024-12-02 13:53:37,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:37,283 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 200 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:37,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:53:37,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73046 states. [2024-12-02 13:53:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73046 to 51761. [2024-12-02 13:53:37,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51761 states, 51760 states have (on average 1.4831723338485316) internal successors, (76769), 51760 states have internal predecessors, (76769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51761 states to 51761 states and 76769 transitions. [2024-12-02 13:53:37,984 INFO L78 Accepts]: Start accepts. Automaton has 51761 states and 76769 transitions. Word has length 84 [2024-12-02 13:53:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:37,984 INFO L471 AbstractCegarLoop]: Abstraction has 51761 states and 76769 transitions. [2024-12-02 13:53:37,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 51761 states and 76769 transitions. [2024-12-02 13:53:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 13:53:37,988 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:37,988 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] [2024-12-02 13:53:37,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:53:37,988 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:37,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1264170607, now seen corresponding path program 1 times [2024-12-02 13:53:37,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:37,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863085483] [2024-12-02 13:53:37,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:37,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:38,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:38,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863085483] [2024-12-02 13:53:38,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863085483] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:38,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:38,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:53:38,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668011678] [2024-12-02 13:53:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:38,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:53:38,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:38,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:53:38,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:38,040 INFO L87 Difference]: Start difference. First operand 51761 states and 76769 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:38,235 INFO L93 Difference]: Finished difference Result 68036 states and 100649 transitions. [2024-12-02 13:53:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:53:38,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-12-02 13:53:38,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:38,384 INFO L225 Difference]: With dead ends: 68036 [2024-12-02 13:53:38,385 INFO L226 Difference]: Without dead ends: 53030 [2024-12-02 13:53:38,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:38,394 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 165 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:38,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 537 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:53:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53030 states. [2024-12-02 13:53:38,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53030 to 48484. [2024-12-02 13:53:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48484 states, 48483 states have (on average 1.4609038219582122) internal successors, (70829), 48483 states have internal predecessors, (70829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48484 states to 48484 states and 70829 transitions. [2024-12-02 13:53:39,001 INFO L78 Accepts]: Start accepts. Automaton has 48484 states and 70829 transitions. Word has length 84 [2024-12-02 13:53:39,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:39,001 INFO L471 AbstractCegarLoop]: Abstraction has 48484 states and 70829 transitions. [2024-12-02 13:53:39,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:39,001 INFO L276 IsEmpty]: Start isEmpty. Operand 48484 states and 70829 transitions. [2024-12-02 13:53:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 13:53:39,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:39,006 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] [2024-12-02 13:53:39,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:53:39,006 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:39,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash 725890361, now seen corresponding path program 1 times [2024-12-02 13:53:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:39,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27128038] [2024-12-02 13:53:39,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:39,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:39,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:39,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27128038] [2024-12-02 13:53:39,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27128038] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:39,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:39,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:53:39,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626785589] [2024-12-02 13:53:39,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:39,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:53:39,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:39,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:53:39,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:39,154 INFO L87 Difference]: Start difference. First operand 48484 states and 70829 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:39,330 INFO L93 Difference]: Finished difference Result 91984 states and 134419 transitions. [2024-12-02 13:53:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:53:39,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-12-02 13:53:39,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:39,379 INFO L225 Difference]: With dead ends: 91984 [2024-12-02 13:53:39,379 INFO L226 Difference]: Without dead ends: 57670 [2024-12-02 13:53:39,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:39,399 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 179 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:39,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 644 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:53:39,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57670 states. [2024-12-02 13:53:39,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57670 to 57140. [2024-12-02 13:53:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57140 states, 57139 states have (on average 1.4352543796706279) internal successors, (82009), 57139 states have internal predecessors, (82009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57140 states to 57140 states and 82009 transitions. [2024-12-02 13:53:39,930 INFO L78 Accepts]: Start accepts. Automaton has 57140 states and 82009 transitions. Word has length 84 [2024-12-02 13:53:39,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:39,931 INFO L471 AbstractCegarLoop]: Abstraction has 57140 states and 82009 transitions. [2024-12-02 13:53:39,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:39,931 INFO L276 IsEmpty]: Start isEmpty. Operand 57140 states and 82009 transitions. [2024-12-02 13:53:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 13:53:39,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:39,936 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] [2024-12-02 13:53:39,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:53:39,936 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:39,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:39,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1100960768, now seen corresponding path program 1 times [2024-12-02 13:53:39,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:39,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290001509] [2024-12-02 13:53:39,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:39,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:40,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:40,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290001509] [2024-12-02 13:53:40,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290001509] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:40,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:40,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:53:40,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387845062] [2024-12-02 13:53:40,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:40,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:40,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:40,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:40,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:40,077 INFO L87 Difference]: Start difference. First operand 57140 states and 82009 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:40,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:40,543 INFO L93 Difference]: Finished difference Result 134558 states and 194631 transitions. [2024-12-02 13:53:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:53:40,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 13:53:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:40,674 INFO L225 Difference]: With dead ends: 134558 [2024-12-02 13:53:40,675 INFO L226 Difference]: Without dead ends: 116964 [2024-12-02 13:53:40,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:53:40,853 INFO L435 NwaCegarLoop]: 431 mSDtfsCounter, 1668 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:40,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1710 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:53:40,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116964 states. [2024-12-02 13:53:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116964 to 74578. [2024-12-02 13:53:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74578 states, 74577 states have (on average 1.4364080078308326) internal successors, (107123), 74577 states have internal predecessors, (107123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74578 states to 74578 states and 107123 transitions. [2024-12-02 13:53:41,672 INFO L78 Accepts]: Start accepts. Automaton has 74578 states and 107123 transitions. Word has length 85 [2024-12-02 13:53:41,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:41,672 INFO L471 AbstractCegarLoop]: Abstraction has 74578 states and 107123 transitions. [2024-12-02 13:53:41,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 74578 states and 107123 transitions. [2024-12-02 13:53:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 13:53:41,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:41,676 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] [2024-12-02 13:53:41,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:53:41,676 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:41,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:41,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1574428513, now seen corresponding path program 1 times [2024-12-02 13:53:41,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:41,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886670940] [2024-12-02 13:53:41,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:41,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:41,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:41,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886670940] [2024-12-02 13:53:41,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886670940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:41,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:41,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:53:41,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549041339] [2024-12-02 13:53:41,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:41,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:53:41,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:41,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:53:41,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:41,717 INFO L87 Difference]: Start difference. First operand 74578 states and 107123 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:42,020 INFO L93 Difference]: Finished difference Result 161662 states and 231414 transitions. [2024-12-02 13:53:42,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:53:42,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 13:53:42,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:42,118 INFO L225 Difference]: With dead ends: 161662 [2024-12-02 13:53:42,118 INFO L226 Difference]: Without dead ends: 92848 [2024-12-02 13:53:42,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:42,159 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 190 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:42,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 532 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:53:42,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92848 states. [2024-12-02 13:53:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92848 to 92226. [2024-12-02 13:53:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92226 states, 92225 states have (on average 1.404456492274329) internal successors, (129526), 92225 states have internal predecessors, (129526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92226 states to 92226 states and 129526 transitions. [2024-12-02 13:53:43,473 INFO L78 Accepts]: Start accepts. Automaton has 92226 states and 129526 transitions. Word has length 85 [2024-12-02 13:53:43,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:43,473 INFO L471 AbstractCegarLoop]: Abstraction has 92226 states and 129526 transitions. [2024-12-02 13:53:43,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand 92226 states and 129526 transitions. [2024-12-02 13:53:43,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 13:53:43,479 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:43,479 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] [2024-12-02 13:53:43,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:53:43,479 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:43,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:43,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1706591926, now seen corresponding path program 1 times [2024-12-02 13:53:43,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:43,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717937397] [2024-12-02 13:53:43,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:43,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717937397] [2024-12-02 13:53:43,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717937397] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:43,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:53:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859294383] [2024-12-02 13:53:43,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:43,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:43,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:43,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:43,639 INFO L87 Difference]: Start difference. First operand 92226 states and 129526 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:44,163 INFO L93 Difference]: Finished difference Result 167274 states and 236403 transitions. [2024-12-02 13:53:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:53:44,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 13:53:44,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:44,336 INFO L225 Difference]: With dead ends: 167274 [2024-12-02 13:53:44,336 INFO L226 Difference]: Without dead ends: 160252 [2024-12-02 13:53:44,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:53:44,373 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 1836 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:44,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 1554 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:53:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160252 states. [2024-12-02 13:53:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160252 to 99138. [2024-12-02 13:53:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99138 states, 99137 states have (on average 1.4048538890626103) internal successors, (139273), 99137 states have internal predecessors, (139273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:46,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99138 states to 99138 states and 139273 transitions. [2024-12-02 13:53:46,105 INFO L78 Accepts]: Start accepts. Automaton has 99138 states and 139273 transitions. Word has length 85 [2024-12-02 13:53:46,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:46,105 INFO L471 AbstractCegarLoop]: Abstraction has 99138 states and 139273 transitions. [2024-12-02 13:53:46,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:46,105 INFO L276 IsEmpty]: Start isEmpty. Operand 99138 states and 139273 transitions. [2024-12-02 13:53:46,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 13:53:46,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:46,111 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] [2024-12-02 13:53:46,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:53:46,111 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:46,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:46,112 INFO L85 PathProgramCache]: Analyzing trace with hash 141661972, now seen corresponding path program 1 times [2024-12-02 13:53:46,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:46,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525315203] [2024-12-02 13:53:46,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:46,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:46,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525315203] [2024-12-02 13:53:46,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525315203] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:46,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:46,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:53:46,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736711049] [2024-12-02 13:53:46,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:46,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:46,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:46,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:46,241 INFO L87 Difference]: Start difference. First operand 99138 states and 139273 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:46,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:46,815 INFO L93 Difference]: Finished difference Result 182682 states and 258234 transitions. [2024-12-02 13:53:46,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:53:46,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 13:53:46,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:46,998 INFO L225 Difference]: With dead ends: 182682 [2024-12-02 13:53:46,999 INFO L226 Difference]: Without dead ends: 167020 [2024-12-02 13:53:47,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:53:47,041 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 1624 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:47,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 1765 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:53:47,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167020 states. [2024-12-02 13:53:48,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167020 to 109026. [2024-12-02 13:53:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109026 states, 109025 states have (on average 1.4065030956202706) internal successors, (153344), 109025 states have internal predecessors, (153344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109026 states to 109026 states and 153344 transitions. [2024-12-02 13:53:48,988 INFO L78 Accepts]: Start accepts. Automaton has 109026 states and 153344 transitions. Word has length 85 [2024-12-02 13:53:48,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:48,988 INFO L471 AbstractCegarLoop]: Abstraction has 109026 states and 153344 transitions. [2024-12-02 13:53:48,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand 109026 states and 153344 transitions. [2024-12-02 13:53:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 13:53:49,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:49,229 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] [2024-12-02 13:53:49,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:53:49,229 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:49,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:49,230 INFO L85 PathProgramCache]: Analyzing trace with hash 660725125, now seen corresponding path program 1 times [2024-12-02 13:53:49,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:49,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668212545] [2024-12-02 13:53:49,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:49,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:49,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:49,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668212545] [2024-12-02 13:53:49,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668212545] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:49,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:49,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:53:49,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085950442] [2024-12-02 13:53:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:49,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:49,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:49,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:49,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:49,335 INFO L87 Difference]: Start difference. First operand 109026 states and 153344 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:49,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:49,857 INFO L93 Difference]: Finished difference Result 220158 states and 311313 transitions. [2024-12-02 13:53:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:53:49,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 13:53:49,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:50,186 INFO L225 Difference]: With dead ends: 220158 [2024-12-02 13:53:50,186 INFO L226 Difference]: Without dead ends: 190624 [2024-12-02 13:53:50,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:53:50,209 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 1660 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:50,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 1923 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:53:50,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190624 states. [2024-12-02 13:53:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190624 to 126168. [2024-12-02 13:53:51,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126168 states, 126167 states have (on average 1.4077769939841638) internal successors, (177615), 126167 states have internal predecessors, (177615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126168 states to 126168 states and 177615 transitions. [2024-12-02 13:53:51,844 INFO L78 Accepts]: Start accepts. Automaton has 126168 states and 177615 transitions. Word has length 85 [2024-12-02 13:53:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:51,844 INFO L471 AbstractCegarLoop]: Abstraction has 126168 states and 177615 transitions. [2024-12-02 13:53:51,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:51,844 INFO L276 IsEmpty]: Start isEmpty. Operand 126168 states and 177615 transitions. [2024-12-02 13:53:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 13:53:51,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:51,850 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] [2024-12-02 13:53:51,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:53:51,851 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:51,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:51,851 INFO L85 PathProgramCache]: Analyzing trace with hash 228228703, now seen corresponding path program 1 times [2024-12-02 13:53:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298247819] [2024-12-02 13:53:51,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:51,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:51,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:51,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298247819] [2024-12-02 13:53:51,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298247819] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:51,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:51,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:53:51,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20294776] [2024-12-02 13:53:51,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:51,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:51,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:51,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:51,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:51,973 INFO L87 Difference]: Start difference. First operand 126168 states and 177615 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:52,803 INFO L93 Difference]: Finished difference Result 253086 states and 357548 transitions. [2024-12-02 13:53:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:53:52,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 13:53:52,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:53,017 INFO L225 Difference]: With dead ends: 253086 [2024-12-02 13:53:53,017 INFO L226 Difference]: Without dead ends: 219824 [2024-12-02 13:53:53,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:53:53,060 INFO L435 NwaCegarLoop]: 452 mSDtfsCounter, 1671 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:53,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 1667 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:53:53,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219824 states. [2024-12-02 13:53:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219824 to 143296. [2024-12-02 13:53:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143296 states, 143295 states have (on average 1.4082417390697513) internal successors, (201794), 143295 states have internal predecessors, (201794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143296 states to 143296 states and 201794 transitions. [2024-12-02 13:53:55,168 INFO L78 Accepts]: Start accepts. Automaton has 143296 states and 201794 transitions. Word has length 85 [2024-12-02 13:53:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:55,168 INFO L471 AbstractCegarLoop]: Abstraction has 143296 states and 201794 transitions. [2024-12-02 13:53:55,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 143296 states and 201794 transitions. [2024-12-02 13:53:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 13:53:55,175 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:55,175 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] [2024-12-02 13:53:55,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:53:55,175 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:55,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:55,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1015854633, now seen corresponding path program 1 times [2024-12-02 13:53:55,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:55,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278093676] [2024-12-02 13:53:55,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:55,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:53:55,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:55,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278093676] [2024-12-02 13:53:55,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278093676] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:55,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:55,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:53:55,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716695597] [2024-12-02 13:53:55,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:55,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:53:55,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:55,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:53:55,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:53:55,289 INFO L87 Difference]: Start difference. First operand 143296 states and 201794 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:53:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:56,691 INFO L93 Difference]: Finished difference Result 481088 states and 674506 transitions. [2024-12-02 13:53:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:53:56,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 13:53:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:57,407 INFO L225 Difference]: With dead ends: 481088 [2024-12-02 13:53:57,407 INFO L226 Difference]: Without dead ends: 412642 [2024-12-02 13:53:57,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:53:57,463 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1962 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:57,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 555 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412642 states. [2024-12-02 13:54:00,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412642 to 143632. [2024-12-02 13:54:00,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143632 states, 143631 states have (on average 1.407913333472579) internal successors, (202220), 143631 states have internal predecessors, (202220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143632 states to 143632 states and 202220 transitions. [2024-12-02 13:54:00,422 INFO L78 Accepts]: Start accepts. Automaton has 143632 states and 202220 transitions. Word has length 90 [2024-12-02 13:54:00,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:00,422 INFO L471 AbstractCegarLoop]: Abstraction has 143632 states and 202220 transitions. [2024-12-02 13:54:00,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 143632 states and 202220 transitions. [2024-12-02 13:54:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 13:54:00,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:00,430 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] [2024-12-02 13:54:00,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:54:00,430 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:00,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1877978372, now seen corresponding path program 1 times [2024-12-02 13:54:00,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:00,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833090887] [2024-12-02 13:54:00,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:00,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:00,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833090887] [2024-12-02 13:54:00,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833090887] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:00,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:00,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:54:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348626044] [2024-12-02 13:54:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:00,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:54:00,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:00,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:54:00,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:54:00,548 INFO L87 Difference]: Start difference. First operand 143632 states and 202220 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:01,844 INFO L93 Difference]: Finished difference Result 401322 states and 560892 transitions. [2024-12-02 13:54:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:54:01,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 13:54:01,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:02,482 INFO L225 Difference]: With dead ends: 401322 [2024-12-02 13:54:02,482 INFO L226 Difference]: Without dead ends: 353228 [2024-12-02 13:54:02,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:54:02,526 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 1720 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:02,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 562 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:54:02,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353228 states. [2024-12-02 13:54:04,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353228 to 144158. [2024-12-02 13:54:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144158 states, 144157 states have (on average 1.4072851127590058) internal successors, (202870), 144157 states have internal predecessors, (202870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:05,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144158 states to 144158 states and 202870 transitions. [2024-12-02 13:54:05,197 INFO L78 Accepts]: Start accepts. Automaton has 144158 states and 202870 transitions. Word has length 90 [2024-12-02 13:54:05,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:05,198 INFO L471 AbstractCegarLoop]: Abstraction has 144158 states and 202870 transitions. [2024-12-02 13:54:05,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:05,198 INFO L276 IsEmpty]: Start isEmpty. Operand 144158 states and 202870 transitions. [2024-12-02 13:54:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 13:54:05,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:05,204 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] [2024-12-02 13:54:05,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:54:05,204 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:05,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1642793908, now seen corresponding path program 1 times [2024-12-02 13:54:05,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:05,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710407494] [2024-12-02 13:54:05,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:05,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:05,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710407494] [2024-12-02 13:54:05,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710407494] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:05,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:05,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:54:05,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170298045] [2024-12-02 13:54:05,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:05,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:54:05,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:05,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:54:05,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:54:05,283 INFO L87 Difference]: Start difference. First operand 144158 states and 202870 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:06,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:06,448 INFO L93 Difference]: Finished difference Result 367209 states and 516326 transitions. [2024-12-02 13:54:06,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:54:06,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 13:54:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:06,749 INFO L225 Difference]: With dead ends: 367209 [2024-12-02 13:54:06,749 INFO L226 Difference]: Without dead ends: 313943 [2024-12-02 13:54:06,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:54:06,804 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 2118 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:06,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 572 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:54:06,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313943 states. [2024-12-02 13:54:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313943 to 144218. [2024-12-02 13:54:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144218 states, 144217 states have (on average 1.4072543458815534) internal successors, (202950), 144217 states have internal predecessors, (202950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144218 states to 144218 states and 202950 transitions. [2024-12-02 13:54:09,362 INFO L78 Accepts]: Start accepts. Automaton has 144218 states and 202950 transitions. Word has length 90 [2024-12-02 13:54:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:09,362 INFO L471 AbstractCegarLoop]: Abstraction has 144218 states and 202950 transitions. [2024-12-02 13:54:09,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand 144218 states and 202950 transitions. [2024-12-02 13:54:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 13:54:09,369 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:09,369 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] [2024-12-02 13:54:09,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 13:54:09,369 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:09,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1017590390, now seen corresponding path program 1 times [2024-12-02 13:54:09,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:09,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003831343] [2024-12-02 13:54:09,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:09,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:09,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:09,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003831343] [2024-12-02 13:54:09,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003831343] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:09,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:09,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:54:09,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031930952] [2024-12-02 13:54:09,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:09,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:54:09,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:09,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:54:09,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:54:09,468 INFO L87 Difference]: Start difference. First operand 144218 states and 202950 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:10,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:10,645 INFO L93 Difference]: Finished difference Result 355032 states and 498081 transitions. [2024-12-02 13:54:10,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:54:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 13:54:10,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:10,955 INFO L225 Difference]: With dead ends: 355032 [2024-12-02 13:54:10,955 INFO L226 Difference]: Without dead ends: 316802 [2024-12-02 13:54:11,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:54:11,003 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 1616 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:11,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 548 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:54:11,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316802 states. [2024-12-02 13:54:13,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316802 to 190579. [2024-12-02 13:54:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190579 states, 190578 states have (on average 1.4048158759143239) internal successors, (267727), 190578 states have internal predecessors, (267727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190579 states to 190579 states and 267727 transitions. [2024-12-02 13:54:13,779 INFO L78 Accepts]: Start accepts. Automaton has 190579 states and 267727 transitions. Word has length 90 [2024-12-02 13:54:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:13,779 INFO L471 AbstractCegarLoop]: Abstraction has 190579 states and 267727 transitions. [2024-12-02 13:54:13,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 190579 states and 267727 transitions. [2024-12-02 13:54:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 13:54:13,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:13,791 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] [2024-12-02 13:54:13,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 13:54:13,792 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:13,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash -601921376, now seen corresponding path program 1 times [2024-12-02 13:54:13,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:13,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011773112] [2024-12-02 13:54:13,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:13,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:13,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:13,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011773112] [2024-12-02 13:54:13,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011773112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:13,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:13,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:54:13,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257593786] [2024-12-02 13:54:13,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:13,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:54:13,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:13,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:54:13,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:54:13,871 INFO L87 Difference]: Start difference. First operand 190579 states and 267727 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:15,234 INFO L93 Difference]: Finished difference Result 467704 states and 653588 transitions. [2024-12-02 13:54:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:54:15,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-02 13:54:15,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:15,592 INFO L225 Difference]: With dead ends: 467704 [2024-12-02 13:54:15,593 INFO L226 Difference]: Without dead ends: 364799 [2024-12-02 13:54:15,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:54:15,656 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1426 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:15,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 481 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:54:15,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364799 states. [2024-12-02 13:54:18,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364799 to 190699. [2024-12-02 13:54:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190699 states, 190698 states have (on average 1.4046869919978184) internal successors, (267871), 190698 states have internal predecessors, (267871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190699 states to 190699 states and 267871 transitions. [2024-12-02 13:54:18,708 INFO L78 Accepts]: Start accepts. Automaton has 190699 states and 267871 transitions. Word has length 91 [2024-12-02 13:54:18,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:18,709 INFO L471 AbstractCegarLoop]: Abstraction has 190699 states and 267871 transitions. [2024-12-02 13:54:18,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:18,709 INFO L276 IsEmpty]: Start isEmpty. Operand 190699 states and 267871 transitions. [2024-12-02 13:54:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 13:54:18,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:18,716 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] [2024-12-02 13:54:18,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 13:54:18,717 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:18,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1756565272, now seen corresponding path program 1 times [2024-12-02 13:54:18,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:18,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921581473] [2024-12-02 13:54:18,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:18,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:19,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921581473] [2024-12-02 13:54:19,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921581473] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:19,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:19,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 13:54:19,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25801782] [2024-12-02 13:54:19,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:19,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:54:19,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:19,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:54:19,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:54:19,359 INFO L87 Difference]: Start difference. First operand 190699 states and 267871 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:22,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:22,052 INFO L93 Difference]: Finished difference Result 666093 states and 933058 transitions. [2024-12-02 13:54:22,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:54:22,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-12-02 13:54:22,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:22,729 INFO L225 Difference]: With dead ends: 666093 [2024-12-02 13:54:22,729 INFO L226 Difference]: Without dead ends: 635491 [2024-12-02 13:54:22,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-12-02 13:54:22,800 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 2052 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:22,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 3311 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:54:23,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635491 states. [2024-12-02 13:54:26,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635491 to 190901. [2024-12-02 13:54:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190901 states, 190900 states have (on average 1.4047878470403352) internal successors, (268174), 190900 states have internal predecessors, (268174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190901 states to 190901 states and 268174 transitions. [2024-12-02 13:54:27,147 INFO L78 Accepts]: Start accepts. Automaton has 190901 states and 268174 transitions. Word has length 92 [2024-12-02 13:54:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:27,147 INFO L471 AbstractCegarLoop]: Abstraction has 190901 states and 268174 transitions. [2024-12-02 13:54:27,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 190901 states and 268174 transitions. [2024-12-02 13:54:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 13:54:27,156 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:27,156 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] [2024-12-02 13:54:27,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 13:54:27,156 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:27,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash -491686923, now seen corresponding path program 1 times [2024-12-02 13:54:27,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:27,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465402119] [2024-12-02 13:54:27,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:27,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:27,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:27,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465402119] [2024-12-02 13:54:27,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465402119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:27,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:27,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:54:27,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865307935] [2024-12-02 13:54:27,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:27,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:54:27,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:27,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:54:27,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:54:27,251 INFO L87 Difference]: Start difference. First operand 190901 states and 268174 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:28,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:28,597 INFO L93 Difference]: Finished difference Result 531975 states and 750518 transitions. [2024-12-02 13:54:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:54:28,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-12-02 13:54:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:28,966 INFO L225 Difference]: With dead ends: 531975 [2024-12-02 13:54:28,966 INFO L226 Difference]: Without dead ends: 346105 [2024-12-02 13:54:29,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:54:29,496 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:29,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 621 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:54:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346105 states. [2024-12-02 13:54:32,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346105 to 328769. [2024-12-02 13:54:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328769 states, 328768 states have (on average 1.4012343050418532) internal successors, (460681), 328768 states have internal predecessors, (460681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:32,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328769 states to 328769 states and 460681 transitions. [2024-12-02 13:54:32,825 INFO L78 Accepts]: Start accepts. Automaton has 328769 states and 460681 transitions. Word has length 92 [2024-12-02 13:54:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:32,826 INFO L471 AbstractCegarLoop]: Abstraction has 328769 states and 460681 transitions. [2024-12-02 13:54:32,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:32,826 INFO L276 IsEmpty]: Start isEmpty. Operand 328769 states and 460681 transitions. [2024-12-02 13:54:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 13:54:32,832 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:32,832 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] [2024-12-02 13:54:32,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 13:54:32,832 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:32,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:32,833 INFO L85 PathProgramCache]: Analyzing trace with hash 432536726, now seen corresponding path program 1 times [2024-12-02 13:54:32,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:32,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942086901] [2024-12-02 13:54:32,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:32,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:33,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:33,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942086901] [2024-12-02 13:54:33,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942086901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:33,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:33,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 13:54:33,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150660420] [2024-12-02 13:54:33,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:33,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:54:33,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:33,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:54:33,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:54:33,837 INFO L87 Difference]: Start difference. First operand 328769 states and 460681 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:37,555 INFO L93 Difference]: Finished difference Result 1128358 states and 1577365 transitions. [2024-12-02 13:54:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:54:37,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-12-02 13:54:37,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:38,774 INFO L225 Difference]: With dead ends: 1128358 [2024-12-02 13:54:38,774 INFO L226 Difference]: Without dead ends: 1048432 [2024-12-02 13:54:38,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-12-02 13:54:38,888 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 2830 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:38,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 2727 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:54:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048432 states. [2024-12-02 13:54:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048432 to 328737. [2024-12-02 13:54:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328737 states, 328736 states have (on average 1.4012307748466855) internal successors, (460635), 328736 states have internal predecessors, (460635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328737 states to 328737 states and 460635 transitions. [2024-12-02 13:54:45,546 INFO L78 Accepts]: Start accepts. Automaton has 328737 states and 460635 transitions. Word has length 92 [2024-12-02 13:54:45,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:45,546 INFO L471 AbstractCegarLoop]: Abstraction has 328737 states and 460635 transitions. [2024-12-02 13:54:45,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:45,546 INFO L276 IsEmpty]: Start isEmpty. Operand 328737 states and 460635 transitions. [2024-12-02 13:54:45,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 13:54:45,556 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:45,556 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] [2024-12-02 13:54:45,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 13:54:45,556 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:45,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1208342576, now seen corresponding path program 1 times [2024-12-02 13:54:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:45,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783989378] [2024-12-02 13:54:45,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:45,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:45,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:45,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783989378] [2024-12-02 13:54:45,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783989378] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:45,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:45,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:54:45,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788548677] [2024-12-02 13:54:45,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:45,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:54:45,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:45,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:54:45,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:54:45,604 INFO L87 Difference]: Start difference. First operand 328737 states and 460635 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:47,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:47,305 INFO L93 Difference]: Finished difference Result 681189 states and 955163 transitions. [2024-12-02 13:54:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:54:47,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 13:54:47,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:47,836 INFO L225 Difference]: With dead ends: 681189 [2024-12-02 13:54:47,837 INFO L226 Difference]: Without dead ends: 455945 [2024-12-02 13:54:47,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:54:47,958 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 212 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:47,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 492 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:54:48,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455945 states. [2024-12-02 13:54:52,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455945 to 454717. [2024-12-02 13:54:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454717 states, 454716 states have (on average 1.4044414535666219) internal successors, (638622), 454716 states have internal predecessors, (638622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)