./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.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_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/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_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/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_b95a9562-89ca-4468-b6e4-5a52f0779a39/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 20a3f63356fd659246c00e5ede12e6614dd9fbac2adaea7d2f156fbd054111cd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:03:33,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:03:33,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 09:03:33,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:03:33,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:03:33,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:03:33,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:03:33,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:03:33,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:03:33,482 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:03:33,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:03:33,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:03:33,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:03:33,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:03:33,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:03:33,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:03:33,484 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:03:33,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:03:33,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:03:33,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:03:33,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:03:33,485 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_b95a9562-89ca-4468-b6e4-5a52f0779a39/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 -> 20a3f63356fd659246c00e5ede12e6614dd9fbac2adaea7d2f156fbd054111cd [2024-12-02 09:03:33,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:03:33,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:03:33,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:03:33,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:03:33,716 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:03:33,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 09:03:36,301 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/data/82b208ec3/8f52d4fd13d94ff2a0d8b0c55b1b2989/FLAGa1aebcc66 [2024-12-02 09:03:36,554 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:03:36,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 09:03:36,565 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/data/82b208ec3/8f52d4fd13d94ff2a0d8b0c55b1b2989/FLAGa1aebcc66 [2024-12-02 09:03:36,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/data/82b208ec3/8f52d4fd13d94ff2a0d8b0c55b1b2989 [2024-12-02 09:03:36,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:03:36,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:03:36,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:03:36,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:03:36,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:03:36,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:36" (1/1) ... [2024-12-02 09:03:36,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ebb2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:36, skipping insertion in model container [2024-12-02 09:03:36,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:36" (1/1) ... [2024-12-02 09:03:36,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:03:37,169 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_b95a9562-89ca-4468-b6e4-5a52f0779a39/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15440,15453] [2024-12-02 09:03:37,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:03:37,238 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:03:37,333 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_b95a9562-89ca-4468-b6e4-5a52f0779a39/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15440,15453] [2024-12-02 09:03:37,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:03:37,399 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:03:37,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37 WrapperNode [2024-12-02 09:03:37,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:03:37,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:03:37,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:03:37,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:03:37,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,466 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1344 [2024-12-02 09:03:37,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:03:37,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:03:37,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:03:37,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:03:37,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,498 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 09:03:37,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,513 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:03:37,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:03:37,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:03:37,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:03:37,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (1/1) ... [2024-12-02 09:03:37,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:03:37,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:37,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:03:37,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95a9562-89ca-4468-b6e4-5a52f0779a39/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:03:37,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:03:37,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 09:03:37,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:03:37,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:03:37,718 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:03:37,719 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:03:38,750 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-12-02 09:03:38,750 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:03:38,767 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:03:38,767 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 09:03:38,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:38 BoogieIcfgContainer [2024-12-02 09:03:38,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:03:38,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:03:38,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:03:38,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:03:38,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:03:36" (1/3) ... [2024-12-02 09:03:38,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd2ba23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:03:38, skipping insertion in model container [2024-12-02 09:03:38,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:37" (2/3) ... [2024-12-02 09:03:38,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd2ba23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:03:38, skipping insertion in model container [2024-12-02 09:03:38,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:38" (3/3) ... [2024-12-02 09:03:38,777 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-12-02 09:03:38,792 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:03:38,795 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 331 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 09:03:38,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:03:38,869 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;@7af1a5ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:03:38,870 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 09:03:38,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 329 states have (on average 1.7750759878419453) internal successors, (584), 330 states have internal predecessors, (584), 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 09:03:38,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:03:38,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:38,884 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:38,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:38,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1173717287, now seen corresponding path program 1 times [2024-12-02 09:03:38,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:38,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253146950] [2024-12-02 09:03:38,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:38,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:39,447 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 09:03:39,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:39,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253146950] [2024-12-02 09:03:39,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253146950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:39,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:39,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:39,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914463903] [2024-12-02 09:03:39,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:39,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:39,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:39,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:39,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:39,473 INFO L87 Difference]: Start difference. First operand has 331 states, 329 states have (on average 1.7750759878419453) internal successors, (584), 330 states have internal predecessors, (584), 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 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 09:03:39,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:39,644 INFO L93 Difference]: Finished difference Result 640 states and 1112 transitions. [2024-12-02 09:03:39,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:39,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 152 [2024-12-02 09:03:39,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:39,658 INFO L225 Difference]: With dead ends: 640 [2024-12-02 09:03:39,658 INFO L226 Difference]: Without dead ends: 523 [2024-12-02 09:03:39,661 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 09:03:39,664 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 382 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:39,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 939 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-12-02 09:03:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 521. [2024-12-02 09:03:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 520 states have (on average 1.4923076923076923) internal successors, (776), 520 states have internal predecessors, (776), 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 09:03:39,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 776 transitions. [2024-12-02 09:03:39,721 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 776 transitions. Word has length 152 [2024-12-02 09:03:39,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:39,722 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 776 transitions. [2024-12-02 09:03:39,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 09:03:39,722 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 776 transitions. [2024-12-02 09:03:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:03:39,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:39,726 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:39,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 09:03:39,727 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:39,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:39,728 INFO L85 PathProgramCache]: Analyzing trace with hash 341515684, now seen corresponding path program 1 times [2024-12-02 09:03:39,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:39,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788227345] [2024-12-02 09:03:39,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:39,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:40,234 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 09:03:40,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:40,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788227345] [2024-12-02 09:03:40,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788227345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:40,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:40,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:40,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778093691] [2024-12-02 09:03:40,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:40,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:40,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:40,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:40,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:40,237 INFO L87 Difference]: Start difference. First operand 521 states and 776 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 09:03:40,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:40,396 INFO L93 Difference]: Finished difference Result 2532 states and 3757 transitions. [2024-12-02 09:03:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:03:40,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 152 [2024-12-02 09:03:40,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:40,405 INFO L225 Difference]: With dead ends: 2532 [2024-12-02 09:03:40,405 INFO L226 Difference]: Without dead ends: 2020 [2024-12-02 09:03:40,407 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 09:03:40,407 INFO L435 NwaCegarLoop]: 757 mSDtfsCounter, 1459 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:40,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 2027 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:40,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2024-12-02 09:03:40,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1014. [2024-12-02 09:03:40,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1013 states have (on average 1.4777887462981243) internal successors, (1497), 1013 states have internal predecessors, (1497), 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 09:03:40,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1497 transitions. [2024-12-02 09:03:40,450 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1497 transitions. Word has length 152 [2024-12-02 09:03:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:40,451 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1497 transitions. [2024-12-02 09:03:40,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 09:03:40,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1497 transitions. [2024-12-02 09:03:40,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:03:40,455 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:40,455 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:40,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 09:03:40,455 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1004817416, now seen corresponding path program 1 times [2024-12-02 09:03:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057347356] [2024-12-02 09:03:40,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:40,576 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 09:03:40,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:40,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057347356] [2024-12-02 09:03:40,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057347356] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:40,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:40,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:40,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809166086] [2024-12-02 09:03:40,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:40,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:40,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:40,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:40,578 INFO L87 Difference]: Start difference. First operand 1014 states and 1497 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 09:03:40,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:40,631 INFO L93 Difference]: Finished difference Result 2002 states and 2951 transitions. [2024-12-02 09:03:40,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:40,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 153 [2024-12-02 09:03:40,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:40,635 INFO L225 Difference]: With dead ends: 2002 [2024-12-02 09:03:40,635 INFO L226 Difference]: Without dead ends: 1016 [2024-12-02 09:03:40,636 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 09:03:40,637 INFO L435 NwaCegarLoop]: 483 mSDtfsCounter, 0 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:40,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 960 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:40,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-12-02 09:03:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2024-12-02 09:03:40,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1015 states have (on average 1.476847290640394) internal successors, (1499), 1015 states have internal predecessors, (1499), 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 09:03:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1499 transitions. [2024-12-02 09:03:40,663 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1499 transitions. Word has length 153 [2024-12-02 09:03:40,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:40,663 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1499 transitions. [2024-12-02 09:03:40,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 09:03:40,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1499 transitions. [2024-12-02 09:03:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 09:03:40,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:40,666 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:40,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 09:03:40,666 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:40,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash -703528603, now seen corresponding path program 1 times [2024-12-02 09:03:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:40,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175219181] [2024-12-02 09:03:40,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:41,296 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 09:03:41,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:41,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175219181] [2024-12-02 09:03:41,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175219181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:41,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:41,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004849615] [2024-12-02 09:03:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:41,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:41,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:41,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:41,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:41,298 INFO L87 Difference]: Start difference. First operand 1016 states and 1499 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 09:03:41,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:41,338 INFO L93 Difference]: Finished difference Result 2022 states and 2984 transitions. [2024-12-02 09:03:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:03:41,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 154 [2024-12-02 09:03:41,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:41,342 INFO L225 Difference]: With dead ends: 2022 [2024-12-02 09:03:41,342 INFO L226 Difference]: Without dead ends: 1014 [2024-12-02 09:03:41,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:41,344 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 24 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:41,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1521 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:41,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-12-02 09:03:41,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1014. [2024-12-02 09:03:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1013 states have (on average 1.4758144126357355) internal successors, (1495), 1013 states have internal predecessors, (1495), 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 09:03:41,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1495 transitions. [2024-12-02 09:03:41,371 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1495 transitions. Word has length 154 [2024-12-02 09:03:41,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:41,371 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1495 transitions. [2024-12-02 09:03:41,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 09:03:41,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1495 transitions. [2024-12-02 09:03:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 09:03:41,373 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:41,373 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:41,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:03:41,374 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:41,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:41,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1019107792, now seen corresponding path program 1 times [2024-12-02 09:03:41,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:41,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173400919] [2024-12-02 09:03:41,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:41,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:41,506 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 09:03:41,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:41,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173400919] [2024-12-02 09:03:41,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173400919] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:41,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:41,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:41,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015773827] [2024-12-02 09:03:41,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:41,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:41,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:41,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:41,508 INFO L87 Difference]: Start difference. First operand 1014 states and 1495 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 09:03:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:41,566 INFO L93 Difference]: Finished difference Result 2320 states and 3431 transitions. [2024-12-02 09:03:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:41,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 154 [2024-12-02 09:03:41,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:41,572 INFO L225 Difference]: With dead ends: 2320 [2024-12-02 09:03:41,572 INFO L226 Difference]: Without dead ends: 1497 [2024-12-02 09:03:41,573 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 09:03:41,573 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 407 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:41,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1333 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-12-02 09:03:41,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1495. [2024-12-02 09:03:41,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1494 states have (on average 1.4578313253012047) internal successors, (2178), 1494 states have internal predecessors, (2178), 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 09:03:41,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2178 transitions. [2024-12-02 09:03:41,623 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2178 transitions. Word has length 154 [2024-12-02 09:03:41,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:41,623 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 2178 transitions. [2024-12-02 09:03:41,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 09:03:41,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2178 transitions. [2024-12-02 09:03:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:03:41,626 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:41,626 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:41,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 09:03:41,627 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:41,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:41,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1727084570, now seen corresponding path program 1 times [2024-12-02 09:03:41,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:41,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306059724] [2024-12-02 09:03:41,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:41,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:41,734 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 09:03:41,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:41,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306059724] [2024-12-02 09:03:41,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306059724] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:41,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:41,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:41,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761628984] [2024-12-02 09:03:41,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:41,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:41,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:41,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:41,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:41,736 INFO L87 Difference]: Start difference. First operand 1495 states and 2178 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:41,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:41,798 INFO L93 Difference]: Finished difference Result 3286 states and 4917 transitions. [2024-12-02 09:03:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-12-02 09:03:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:41,806 INFO L225 Difference]: With dead ends: 3286 [2024-12-02 09:03:41,806 INFO L226 Difference]: Without dead ends: 1973 [2024-12-02 09:03:41,808 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 09:03:41,808 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 233 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:41,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 978 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:41,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-12-02 09:03:41,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1929. [2024-12-02 09:03:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1928 states have (on average 1.495850622406639) internal successors, (2884), 1928 states have internal predecessors, (2884), 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 09:03:41,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2884 transitions. [2024-12-02 09:03:41,866 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2884 transitions. Word has length 155 [2024-12-02 09:03:41,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:41,866 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 2884 transitions. [2024-12-02 09:03:41,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:41,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2884 transitions. [2024-12-02 09:03:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 09:03:41,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:41,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:41,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 09:03:41,869 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:41,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:41,870 INFO L85 PathProgramCache]: Analyzing trace with hash -340642986, now seen corresponding path program 1 times [2024-12-02 09:03:41,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:41,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822717091] [2024-12-02 09:03:41,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:41,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:42,542 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 09:03:42,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:42,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822717091] [2024-12-02 09:03:42,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822717091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:42,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:42,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 09:03:42,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005580114] [2024-12-02 09:03:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:42,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 09:03:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:42,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 09:03:42,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:03:42,544 INFO L87 Difference]: Start difference. First operand 1929 states and 2884 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 8 states have internal predecessors, (158), 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 09:03:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:43,408 INFO L93 Difference]: Finished difference Result 8508 states and 13184 transitions. [2024-12-02 09:03:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 09:03:43,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 8 states have internal predecessors, (158), 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 158 [2024-12-02 09:03:43,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:43,433 INFO L225 Difference]: With dead ends: 8508 [2024-12-02 09:03:43,434 INFO L226 Difference]: Without dead ends: 6794 [2024-12-02 09:03:43,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:03:43,438 INFO L435 NwaCegarLoop]: 447 mSDtfsCounter, 4250 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4250 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:43,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4250 Valid, 2458 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 09:03:43,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6794 states. [2024-12-02 09:03:43,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6794 to 4602. [2024-12-02 09:03:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4601 states have (on average 1.5129319713105847) internal successors, (6961), 4601 states have internal predecessors, (6961), 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 09:03:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6961 transitions. [2024-12-02 09:03:43,608 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6961 transitions. Word has length 158 [2024-12-02 09:03:43,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:43,608 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6961 transitions. [2024-12-02 09:03:43,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 8 states have internal predecessors, (158), 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 09:03:43,608 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6961 transitions. [2024-12-02 09:03:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 09:03:43,612 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:43,613 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:43,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 09:03:43,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:43,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:43,613 INFO L85 PathProgramCache]: Analyzing trace with hash -534879843, now seen corresponding path program 1 times [2024-12-02 09:03:43,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:43,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34450496] [2024-12-02 09:03:43,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:43,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:44,000 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 09:03:44,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:44,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34450496] [2024-12-02 09:03:44,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34450496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:44,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:44,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:44,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434153574] [2024-12-02 09:03:44,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:44,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:44,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:44,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:44,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:44,002 INFO L87 Difference]: Start difference. First operand 4602 states and 6961 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 09:03:44,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:44,135 INFO L93 Difference]: Finished difference Result 8860 states and 13782 transitions. [2024-12-02 09:03:44,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:03:44,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 158 [2024-12-02 09:03:44,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:44,154 INFO L225 Difference]: With dead ends: 8860 [2024-12-02 09:03:44,154 INFO L226 Difference]: Without dead ends: 5710 [2024-12-02 09:03:44,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:44,159 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 592 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:44,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1016 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2024-12-02 09:03:44,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5708. [2024-12-02 09:03:44,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 5707 states have (on average 1.5216400911161732) internal successors, (8684), 5707 states have internal predecessors, (8684), 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 09:03:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 8684 transitions. [2024-12-02 09:03:44,303 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 8684 transitions. Word has length 158 [2024-12-02 09:03:44,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:44,303 INFO L471 AbstractCegarLoop]: Abstraction has 5708 states and 8684 transitions. [2024-12-02 09:03:44,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 09:03:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 8684 transitions. [2024-12-02 09:03:44,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 09:03:44,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:44,307 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:44,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 09:03:44,308 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:44,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:44,308 INFO L85 PathProgramCache]: Analyzing trace with hash -113492083, now seen corresponding path program 1 times [2024-12-02 09:03:44,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:44,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221573444] [2024-12-02 09:03:44,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:44,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:44,681 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 09:03:44,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:44,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221573444] [2024-12-02 09:03:44,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221573444] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:44,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:44,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:44,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654486142] [2024-12-02 09:03:44,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:44,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:44,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:44,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:44,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:44,683 INFO L87 Difference]: Start difference. First operand 5708 states and 8684 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 09:03:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:44,805 INFO L93 Difference]: Finished difference Result 14960 states and 22730 transitions. [2024-12-02 09:03:44,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:03:44,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 158 [2024-12-02 09:03:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:44,832 INFO L225 Difference]: With dead ends: 14960 [2024-12-02 09:03:44,832 INFO L226 Difference]: Without dead ends: 9271 [2024-12-02 09:03:44,838 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 09:03:44,839 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 407 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:44,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 2049 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:44,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9271 states. [2024-12-02 09:03:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9271 to 9269. [2024-12-02 09:03:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9269 states, 9268 states have (on average 1.5043159257660768) internal successors, (13942), 9268 states have internal predecessors, (13942), 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 09:03:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9269 states to 9269 states and 13942 transitions. [2024-12-02 09:03:45,095 INFO L78 Accepts]: Start accepts. Automaton has 9269 states and 13942 transitions. Word has length 158 [2024-12-02 09:03:45,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:45,095 INFO L471 AbstractCegarLoop]: Abstraction has 9269 states and 13942 transitions. [2024-12-02 09:03:45,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 09:03:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 9269 states and 13942 transitions. [2024-12-02 09:03:45,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 09:03:45,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:45,103 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:45,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 09:03:45,103 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:45,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1922512600, now seen corresponding path program 1 times [2024-12-02 09:03:45,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:45,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067673623] [2024-12-02 09:03:45,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:45,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:45,516 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 09:03:45,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:45,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067673623] [2024-12-02 09:03:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067673623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:45,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:45,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:45,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746445979] [2024-12-02 09:03:45,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:45,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:45,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:45,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:45,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:45,519 INFO L87 Difference]: Start difference. First operand 9269 states and 13942 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 09:03:45,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:45,749 INFO L93 Difference]: Finished difference Result 45164 states and 67961 transitions. [2024-12-02 09:03:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:03:45,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 160 [2024-12-02 09:03:45,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:45,815 INFO L225 Difference]: With dead ends: 45164 [2024-12-02 09:03:45,815 INFO L226 Difference]: Without dead ends: 35930 [2024-12-02 09:03:45,830 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 09:03:45,831 INFO L435 NwaCegarLoop]: 790 mSDtfsCounter, 1305 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:45,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 2049 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35930 states. [2024-12-02 09:03:46,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35930 to 17985. [2024-12-02 09:03:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17985 states, 17984 states have (on average 1.496163256227758) internal successors, (26907), 17984 states have internal predecessors, (26907), 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 09:03:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17985 states to 17985 states and 26907 transitions. [2024-12-02 09:03:46,325 INFO L78 Accepts]: Start accepts. Automaton has 17985 states and 26907 transitions. Word has length 160 [2024-12-02 09:03:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:46,325 INFO L471 AbstractCegarLoop]: Abstraction has 17985 states and 26907 transitions. [2024-12-02 09:03:46,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 09:03:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 17985 states and 26907 transitions. [2024-12-02 09:03:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 09:03:46,334 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:46,334 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:46,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 09:03:46,334 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:46,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:46,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1522660840, now seen corresponding path program 1 times [2024-12-02 09:03:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:46,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396403422] [2024-12-02 09:03:46,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:46,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:46,420 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 09:03:46,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:46,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396403422] [2024-12-02 09:03:46,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396403422] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:46,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:46,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:46,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763642395] [2024-12-02 09:03:46,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:46,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:46,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:46,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:46,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:46,421 INFO L87 Difference]: Start difference. First operand 17985 states and 26907 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 09:03:46,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:46,579 INFO L93 Difference]: Finished difference Result 35920 states and 53739 transitions. [2024-12-02 09:03:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:46,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 161 [2024-12-02 09:03:46,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:46,606 INFO L225 Difference]: With dead ends: 35920 [2024-12-02 09:03:46,606 INFO L226 Difference]: Without dead ends: 17991 [2024-12-02 09:03:46,614 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 09:03:46,615 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 0 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:46,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 938 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17991 states. [2024-12-02 09:03:46,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17991 to 17991. [2024-12-02 09:03:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17991 states, 17990 states have (on average 1.4959977765425236) internal successors, (26913), 17990 states have internal predecessors, (26913), 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 09:03:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17991 states to 17991 states and 26913 transitions. [2024-12-02 09:03:46,889 INFO L78 Accepts]: Start accepts. Automaton has 17991 states and 26913 transitions. Word has length 161 [2024-12-02 09:03:46,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:46,890 INFO L471 AbstractCegarLoop]: Abstraction has 17991 states and 26913 transitions. [2024-12-02 09:03:46,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 09:03:46,890 INFO L276 IsEmpty]: Start isEmpty. Operand 17991 states and 26913 transitions. [2024-12-02 09:03:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 09:03:46,900 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:46,900 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:46,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 09:03:46,901 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:46,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:46,901 INFO L85 PathProgramCache]: Analyzing trace with hash 17518121, now seen corresponding path program 1 times [2024-12-02 09:03:46,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:46,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670627846] [2024-12-02 09:03:46,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:46,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:47,465 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 09:03:47,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:47,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670627846] [2024-12-02 09:03:47,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670627846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:47,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:47,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282297397] [2024-12-02 09:03:47,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:47,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:47,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:47,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:47,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:47,467 INFO L87 Difference]: Start difference. First operand 17991 states and 26913 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 09:03:47,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:47,605 INFO L93 Difference]: Finished difference Result 35924 states and 53742 transitions. [2024-12-02 09:03:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:03:47,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 162 [2024-12-02 09:03:47,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:47,642 INFO L225 Difference]: With dead ends: 35924 [2024-12-02 09:03:47,643 INFO L226 Difference]: Without dead ends: 17991 [2024-12-02 09:03:47,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:47,657 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 10 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:47,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1454 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:47,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17991 states. [2024-12-02 09:03:47,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17991 to 17984. [2024-12-02 09:03:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17984 states, 17983 states have (on average 1.495968414613802) internal successors, (26902), 17983 states have internal predecessors, (26902), 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 09:03:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17984 states to 17984 states and 26902 transitions. [2024-12-02 09:03:47,959 INFO L78 Accepts]: Start accepts. Automaton has 17984 states and 26902 transitions. Word has length 162 [2024-12-02 09:03:47,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:47,959 INFO L471 AbstractCegarLoop]: Abstraction has 17984 states and 26902 transitions. [2024-12-02 09:03:47,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 09:03:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 17984 states and 26902 transitions. [2024-12-02 09:03:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 09:03:47,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:47,964 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:47,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 09:03:47,964 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1513136040, now seen corresponding path program 1 times [2024-12-02 09:03:47,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:47,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445162096] [2024-12-02 09:03:47,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:47,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:48,032 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 09:03:48,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:48,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445162096] [2024-12-02 09:03:48,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445162096] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:48,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:48,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:48,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039835517] [2024-12-02 09:03:48,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:48,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:48,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:48,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:48,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:48,034 INFO L87 Difference]: Start difference. First operand 17984 states and 26902 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 09:03:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:48,152 INFO L93 Difference]: Finished difference Result 52134 states and 77974 transitions. [2024-12-02 09:03:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:48,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 162 [2024-12-02 09:03:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:48,192 INFO L225 Difference]: With dead ends: 52134 [2024-12-02 09:03:48,192 INFO L226 Difference]: Without dead ends: 34761 [2024-12-02 09:03:48,204 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 09:03:48,204 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 384 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:48,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1298 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34761 states. [2024-12-02 09:03:48,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34761 to 34759. [2024-12-02 09:03:48,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34759 states, 34758 states have (on average 1.4812992692329823) internal successors, (51487), 34758 states have internal predecessors, (51487), 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 09:03:48,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34759 states to 34759 states and 51487 transitions. [2024-12-02 09:03:48,682 INFO L78 Accepts]: Start accepts. Automaton has 34759 states and 51487 transitions. Word has length 162 [2024-12-02 09:03:48,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:48,682 INFO L471 AbstractCegarLoop]: Abstraction has 34759 states and 51487 transitions. [2024-12-02 09:03:48,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 09:03:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 34759 states and 51487 transitions. [2024-12-02 09:03:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 09:03:48,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:48,692 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:48,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 09:03:48,692 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:48,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1328364789, now seen corresponding path program 1 times [2024-12-02 09:03:48,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:48,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974108079] [2024-12-02 09:03:48,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:48,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:49,123 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 09:03:49,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:49,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974108079] [2024-12-02 09:03:49,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974108079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:49,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:49,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:49,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893707134] [2024-12-02 09:03:49,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:49,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:49,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:49,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:49,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:49,124 INFO L87 Difference]: Start difference. First operand 34759 states and 51487 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 09:03:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:49,279 INFO L93 Difference]: Finished difference Result 60819 states and 90132 transitions. [2024-12-02 09:03:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:03:49,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 162 [2024-12-02 09:03:49,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:49,323 INFO L225 Difference]: With dead ends: 60819 [2024-12-02 09:03:49,323 INFO L226 Difference]: Without dead ends: 26627 [2024-12-02 09:03:49,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:49,342 INFO L435 NwaCegarLoop]: 499 mSDtfsCounter, 13 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:49,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1458 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:49,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26627 states. [2024-12-02 09:03:49,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26627 to 26627. [2024-12-02 09:03:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26627 states, 26626 states have (on average 1.4766393750469466) internal successors, (39317), 26626 states have internal predecessors, (39317), 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 09:03:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26627 states to 26627 states and 39317 transitions. [2024-12-02 09:03:49,819 INFO L78 Accepts]: Start accepts. Automaton has 26627 states and 39317 transitions. Word has length 162 [2024-12-02 09:03:49,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:49,819 INFO L471 AbstractCegarLoop]: Abstraction has 26627 states and 39317 transitions. [2024-12-02 09:03:49,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 09:03:49,819 INFO L276 IsEmpty]: Start isEmpty. Operand 26627 states and 39317 transitions. [2024-12-02 09:03:49,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 09:03:49,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:49,827 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:49,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 09:03:49,827 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:49,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:49,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1427549220, now seen corresponding path program 1 times [2024-12-02 09:03:49,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:49,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97106228] [2024-12-02 09:03:49,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:49,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:49,948 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 09:03:49,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:49,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97106228] [2024-12-02 09:03:49,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97106228] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:49,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:49,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:49,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814860535] [2024-12-02 09:03:49,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:49,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:49,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:49,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:49,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:49,950 INFO L87 Difference]: Start difference. First operand 26627 states and 39317 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:50,186 INFO L93 Difference]: Finished difference Result 69217 states and 103596 transitions. [2024-12-02 09:03:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:50,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2024-12-02 09:03:50,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:50,228 INFO L225 Difference]: With dead ends: 69217 [2024-12-02 09:03:50,228 INFO L226 Difference]: Without dead ends: 43335 [2024-12-02 09:03:50,246 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 09:03:50,246 INFO L435 NwaCegarLoop]: 663 mSDtfsCounter, 302 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:50,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 996 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:50,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43335 states. [2024-12-02 09:03:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43335 to 39255. [2024-12-02 09:03:50,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39255 states, 39254 states have (on average 1.5129923065165334) internal successors, (59391), 39254 states have internal predecessors, (59391), 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 09:03:50,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39255 states to 39255 states and 59391 transitions. [2024-12-02 09:03:50,972 INFO L78 Accepts]: Start accepts. Automaton has 39255 states and 59391 transitions. Word has length 164 [2024-12-02 09:03:50,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:50,972 INFO L471 AbstractCegarLoop]: Abstraction has 39255 states and 59391 transitions. [2024-12-02 09:03:50,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:50,972 INFO L276 IsEmpty]: Start isEmpty. Operand 39255 states and 59391 transitions. [2024-12-02 09:03:50,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 09:03:50,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:50,978 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:50,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 09:03:50,978 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:50,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash -931687632, now seen corresponding path program 1 times [2024-12-02 09:03:50,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:50,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282344604] [2024-12-02 09:03:50,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:50,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:51,035 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 09:03:51,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:51,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282344604] [2024-12-02 09:03:51,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282344604] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:51,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:51,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:03:51,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662846619] [2024-12-02 09:03:51,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:51,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:03:51,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:51,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:03:51,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:03:51,036 INFO L87 Difference]: Start difference. First operand 39255 states and 59391 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 09:03:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:51,265 INFO L93 Difference]: Finished difference Result 98718 states and 150654 transitions. [2024-12-02 09:03:51,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:03:51,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 166 [2024-12-02 09:03:51,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:51,330 INFO L225 Difference]: With dead ends: 98718 [2024-12-02 09:03:51,330 INFO L226 Difference]: Without dead ends: 65183 [2024-12-02 09:03:51,352 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 09:03:51,353 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 301 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:51,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 969 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65183 states. [2024-12-02 09:03:51,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65183 to 60189. [2024-12-02 09:03:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60189 states, 60188 states have (on average 1.5279457699209145) internal successors, (91964), 60188 states have internal predecessors, (91964), 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 09:03:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60189 states to 60189 states and 91964 transitions. [2024-12-02 09:03:52,055 INFO L78 Accepts]: Start accepts. Automaton has 60189 states and 91964 transitions. Word has length 166 [2024-12-02 09:03:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:52,055 INFO L471 AbstractCegarLoop]: Abstraction has 60189 states and 91964 transitions. [2024-12-02 09:03:52,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 09:03:52,055 INFO L276 IsEmpty]: Start isEmpty. Operand 60189 states and 91964 transitions. [2024-12-02 09:03:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 09:03:52,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:52,061 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:52,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 09:03:52,061 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:52,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:52,061 INFO L85 PathProgramCache]: Analyzing trace with hash 412948456, now seen corresponding path program 1 times [2024-12-02 09:03:52,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:52,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235876647] [2024-12-02 09:03:52,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:52,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:52,574 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 09:03:52,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:52,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235876647] [2024-12-02 09:03:52,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235876647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:52,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:52,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 09:03:52,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881898702] [2024-12-02 09:03:52,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:52,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 09:03:52,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:52,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 09:03:52,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:03:52,576 INFO L87 Difference]: Start difference. First operand 60189 states and 91964 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 8 states have internal predecessors, (167), 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 09:03:53,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:53,705 INFO L93 Difference]: Finished difference Result 313682 states and 477312 transitions. [2024-12-02 09:03:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 09:03:53,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 8 states have internal predecessors, (167), 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 167 [2024-12-02 09:03:53,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:54,152 INFO L225 Difference]: With dead ends: 313682 [2024-12-02 09:03:54,152 INFO L226 Difference]: Without dead ends: 254063 [2024-12-02 09:03:54,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:03:54,197 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 4973 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4973 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:54,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4973 Valid, 2198 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 09:03:54,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254063 states. [2024-12-02 09:03:56,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254063 to 150559. [2024-12-02 09:03:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150559 states, 150558 states have (on average 1.526860080500538) internal successors, (229881), 150558 states have internal predecessors, (229881), 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 09:03:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150559 states to 150559 states and 229881 transitions. [2024-12-02 09:03:56,753 INFO L78 Accepts]: Start accepts. Automaton has 150559 states and 229881 transitions. Word has length 167 [2024-12-02 09:03:56,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:56,753 INFO L471 AbstractCegarLoop]: Abstraction has 150559 states and 229881 transitions. [2024-12-02 09:03:56,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 8 states have internal predecessors, (167), 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 09:03:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 150559 states and 229881 transitions. [2024-12-02 09:03:56,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 09:03:56,767 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:56,768 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:56,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 09:03:56,768 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:56,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:56,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1524542156, now seen corresponding path program 1 times [2024-12-02 09:03:56,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:56,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019127784] [2024-12-02 09:03:56,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:56,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:57,103 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 09:03:57,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:57,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019127784] [2024-12-02 09:03:57,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019127784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:57,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:57,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:57,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46397333] [2024-12-02 09:03:57,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:57,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:57,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:57,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:57,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:57,105 INFO L87 Difference]: Start difference. First operand 150559 states and 229881 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 09:03:58,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:58,437 INFO L93 Difference]: Finished difference Result 341771 states and 526638 transitions. [2024-12-02 09:03:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:03:58,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 167 [2024-12-02 09:03:58,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:58,639 INFO L225 Difference]: With dead ends: 341771 [2024-12-02 09:03:58,639 INFO L226 Difference]: Without dead ends: 205473 [2024-12-02 09:03:58,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:58,678 INFO L435 NwaCegarLoop]: 439 mSDtfsCounter, 596 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:58,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 915 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205473 states. [2024-12-02 09:04:00,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205473 to 205471. [2024-12-02 09:04:00,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205471 states, 205470 states have (on average 1.5248114079914343) internal successors, (313303), 205470 states have internal predecessors, (313303), 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 09:04:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205471 states to 205471 states and 313303 transitions. [2024-12-02 09:04:01,412 INFO L78 Accepts]: Start accepts. Automaton has 205471 states and 313303 transitions. Word has length 167 [2024-12-02 09:04:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:01,413 INFO L471 AbstractCegarLoop]: Abstraction has 205471 states and 313303 transitions. [2024-12-02 09:04:01,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 09:04:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 205471 states and 313303 transitions. [2024-12-02 09:04:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 09:04:01,423 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:01,423 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:01,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 09:04:01,423 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:01,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:01,424 INFO L85 PathProgramCache]: Analyzing trace with hash 879510135, now seen corresponding path program 1 times [2024-12-02 09:04:01,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:01,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567815184] [2024-12-02 09:04:01,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:01,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:01,543 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 09:04:01,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:01,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567815184] [2024-12-02 09:04:01,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567815184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:01,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:01,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:04:01,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975294389] [2024-12-02 09:04:01,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:01,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:04:01,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:01,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:04:01,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:04:01,544 INFO L87 Difference]: Start difference. First operand 205471 states and 313303 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 09:04:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:03,194 INFO L93 Difference]: Finished difference Result 572406 states and 882396 transitions. [2024-12-02 09:04:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:04:03,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 167 [2024-12-02 09:04:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:03,720 INFO L225 Difference]: With dead ends: 572406 [2024-12-02 09:04:03,720 INFO L226 Difference]: Without dead ends: 477349 [2024-12-02 09:04:03,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:04:03,781 INFO L435 NwaCegarLoop]: 718 mSDtfsCounter, 890 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:03,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 1561 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:04:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477349 states. [2024-12-02 09:04:07,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477349 to 347851. [2024-12-02 09:04:08,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347851 states, 347850 states have (on average 1.530286042834555) internal successors, (532310), 347850 states have internal predecessors, (532310), 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 09:04:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347851 states to 347851 states and 532310 transitions. [2024-12-02 09:04:08,928 INFO L78 Accepts]: Start accepts. Automaton has 347851 states and 532310 transitions. Word has length 167 [2024-12-02 09:04:08,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:08,928 INFO L471 AbstractCegarLoop]: Abstraction has 347851 states and 532310 transitions. [2024-12-02 09:04:08,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 09:04:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 347851 states and 532310 transitions. [2024-12-02 09:04:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 09:04:08,939 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:08,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:08,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 09:04:08,939 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:08,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash -819415595, now seen corresponding path program 1 times [2024-12-02 09:04:08,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:08,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576621791] [2024-12-02 09:04:08,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:08,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:09,527 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 09:04:09,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:09,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576621791] [2024-12-02 09:04:09,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576621791] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:09,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:09,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:04:09,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866642746] [2024-12-02 09:04:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:09,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:04:09,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:09,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:04:09,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:04:09,529 INFO L87 Difference]: Start difference. First operand 347851 states and 532310 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 09:04:10,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:10,954 INFO L93 Difference]: Finished difference Result 628203 states and 960722 transitions. [2024-12-02 09:04:10,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:04:10,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 167 [2024-12-02 09:04:10,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:11,338 INFO L225 Difference]: With dead ends: 628203 [2024-12-02 09:04:11,338 INFO L226 Difference]: Without dead ends: 347851 [2024-12-02 09:04:11,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:04:11,447 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 15 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:11,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1435 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:04:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347851 states. [2024-12-02 09:04:15,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347851 to 347851. [2024-12-02 09:04:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347851 states, 347850 states have (on average 1.5302831680321978) internal successors, (532309), 347850 states have internal predecessors, (532309), 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 09:04:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347851 states to 347851 states and 532309 transitions. [2024-12-02 09:04:15,921 INFO L78 Accepts]: Start accepts. Automaton has 347851 states and 532309 transitions. Word has length 167 [2024-12-02 09:04:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:15,921 INFO L471 AbstractCegarLoop]: Abstraction has 347851 states and 532309 transitions. [2024-12-02 09:04:15,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 09:04:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 347851 states and 532309 transitions. [2024-12-02 09:04:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 09:04:15,939 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:15,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:15,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 09:04:15,939 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:15,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:15,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1369747922, now seen corresponding path program 1 times [2024-12-02 09:04:15,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:15,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468142884] [2024-12-02 09:04:15,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:15,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:16,050 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 09:04:16,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:16,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468142884] [2024-12-02 09:04:16,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468142884] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:16,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:16,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:04:16,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016648439] [2024-12-02 09:04:16,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:16,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:04:16,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:16,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:04:16,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:04:16,052 INFO L87 Difference]: Start difference. First operand 347851 states and 532309 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 09:04:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:18,615 INFO L93 Difference]: Finished difference Result 869168 states and 1328787 transitions. [2024-12-02 09:04:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:04:18,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 167 [2024-12-02 09:04:18,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:19,232 INFO L225 Difference]: With dead ends: 869168 [2024-12-02 09:04:19,232 INFO L226 Difference]: Without dead ends: 522392 [2024-12-02 09:04:19,363 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 09:04:19,364 INFO L435 NwaCegarLoop]: 848 mSDtfsCounter, 378 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:19,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1260 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:04:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522392 states. [2024-12-02 09:04:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522392 to 522390. [2024-12-02 09:04:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522390 states, 522389 states have (on average 1.5117737930928867) internal successors, (789734), 522389 states have internal predecessors, (789734), 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 09:04:25,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522390 states to 522390 states and 789734 transitions. [2024-12-02 09:04:25,849 INFO L78 Accepts]: Start accepts. Automaton has 522390 states and 789734 transitions. Word has length 167 [2024-12-02 09:04:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:25,849 INFO L471 AbstractCegarLoop]: Abstraction has 522390 states and 789734 transitions. [2024-12-02 09:04:25,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 09:04:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 522390 states and 789734 transitions. [2024-12-02 09:04:25,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 09:04:25,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:25,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:25,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 09:04:25,869 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:25,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2035934990, now seen corresponding path program 1 times [2024-12-02 09:04:25,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:25,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732773748] [2024-12-02 09:04:25,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:25,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:25,977 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 09:04:25,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:25,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732773748] [2024-12-02 09:04:25,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732773748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:25,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:25,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:04:25,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907849573] [2024-12-02 09:04:25,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:25,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:04:25,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:25,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:04:25,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:04:25,979 INFO L87 Difference]: Start difference. First operand 522390 states and 789734 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 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 09:04:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:31,567 INFO L93 Difference]: Finished difference Result 1807643 states and 2758809 transitions. [2024-12-02 09:04:31,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:04:31,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 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 171 [2024-12-02 09:04:31,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:33,601 INFO L225 Difference]: With dead ends: 1807643 [2024-12-02 09:04:33,601 INFO L226 Difference]: Without dead ends: 1322306 [2024-12-02 09:04:33,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:04:33,901 INFO L435 NwaCegarLoop]: 729 mSDtfsCounter, 1364 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:33,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 1867 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 09:04:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322306 states. [2024-12-02 09:04:44,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322306 to 861648. [2024-12-02 09:04:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861648 states, 861647 states have (on average 1.5050235189120371) internal successors, (1296799), 861647 states have internal predecessors, (1296799), 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 09:04:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861648 states to 861648 states and 1296799 transitions. [2024-12-02 09:04:47,193 INFO L78 Accepts]: Start accepts. Automaton has 861648 states and 1296799 transitions. Word has length 171 [2024-12-02 09:04:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:47,193 INFO L471 AbstractCegarLoop]: Abstraction has 861648 states and 1296799 transitions. [2024-12-02 09:04:47,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 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 09:04:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 861648 states and 1296799 transitions. [2024-12-02 09:04:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 09:04:47,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:47,210 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:47,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 09:04:47,211 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:47,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:47,211 INFO L85 PathProgramCache]: Analyzing trace with hash 320852643, now seen corresponding path program 1 times [2024-12-02 09:04:47,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:47,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45612019] [2024-12-02 09:04:47,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:47,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:47,454 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 09:04:47,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:47,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45612019] [2024-12-02 09:04:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45612019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:47,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:47,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:04:47,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032523125] [2024-12-02 09:04:47,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:47,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:04:47,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:47,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:04:47,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:04:47,456 INFO L87 Difference]: Start difference. First operand 861648 states and 1296799 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 09:04:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:51,214 INFO L93 Difference]: Finished difference Result 1430610 states and 2151148 transitions. [2024-12-02 09:04:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:04:51,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 171 [2024-12-02 09:04:51,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:52,178 INFO L225 Difference]: With dead ends: 1430610 [2024-12-02 09:04:52,178 INFO L226 Difference]: Without dead ends: 794889 [2024-12-02 09:04:52,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:04:52,326 INFO L435 NwaCegarLoop]: 697 mSDtfsCounter, 388 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:52,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1487 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:04:52,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794889 states. [2024-12-02 09:04:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794889 to 794747. [2024-12-02 09:04:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794747 states, 794746 states have (on average 1.5039975036049253) internal successors, (1195296), 794746 states have internal predecessors, (1195296), 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 09:05:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794747 states to 794747 states and 1195296 transitions. [2024-12-02 09:05:01,533 INFO L78 Accepts]: Start accepts. Automaton has 794747 states and 1195296 transitions. Word has length 171 [2024-12-02 09:05:01,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:05:01,533 INFO L471 AbstractCegarLoop]: Abstraction has 794747 states and 1195296 transitions. [2024-12-02 09:05:01,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 09:05:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 794747 states and 1195296 transitions. [2024-12-02 09:05:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 09:05:01,560 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:05:01,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:05:01,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 09:05:01,560 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:05:01,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:05:01,561 INFO L85 PathProgramCache]: Analyzing trace with hash -741079743, now seen corresponding path program 1 times [2024-12-02 09:05:01,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:05:01,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797862002] [2024-12-02 09:05:01,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:05:01,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:05:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:02,223 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 09:05:02,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:05:02,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797862002] [2024-12-02 09:05:02,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797862002] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:05:02,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:05:02,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:05:02,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943696696] [2024-12-02 09:05:02,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:05:02,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:05:02,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:05:02,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:05:02,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:05:02,225 INFO L87 Difference]: Start difference. First operand 794747 states and 1195296 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 09:05:08,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:05:08,913 INFO L93 Difference]: Finished difference Result 2384432 states and 3586045 transitions. [2024-12-02 09:05:08,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:05:08,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 173 [2024-12-02 09:05:08,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:05:10,990 INFO L225 Difference]: With dead ends: 2384432 [2024-12-02 09:05:10,990 INFO L226 Difference]: Without dead ends: 1589850 [2024-12-02 09:05:11,236 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 09:05:11,236 INFO L435 NwaCegarLoop]: 743 mSDtfsCounter, 1248 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:05:11,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 1923 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:05:12,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589850 states. [2024-12-02 09:05:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589850 to 794845. [2024-12-02 09:05:23,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794845 states, 794844 states have (on average 1.5039278147661679) internal successors, (1195388), 794844 states have internal predecessors, (1195388), 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 09:05:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794845 states to 794845 states and 1195388 transitions. [2024-12-02 09:05:25,533 INFO L78 Accepts]: Start accepts. Automaton has 794845 states and 1195388 transitions. Word has length 173 [2024-12-02 09:05:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:05:25,533 INFO L471 AbstractCegarLoop]: Abstraction has 794845 states and 1195388 transitions. [2024-12-02 09:05:25,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 09:05:25,533 INFO L276 IsEmpty]: Start isEmpty. Operand 794845 states and 1195388 transitions. [2024-12-02 09:05:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 09:05:25,548 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:05:25,548 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:05:25,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 09:05:25,548 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:05:25,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:05:25,548 INFO L85 PathProgramCache]: Analyzing trace with hash -445018131, now seen corresponding path program 1 times [2024-12-02 09:05:25,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:05:25,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968020280] [2024-12-02 09:05:25,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:05:25,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:05:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:25,613 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 09:05:25,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:05:25,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968020280] [2024-12-02 09:05:25,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968020280] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:05:25,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:05:25,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:05:25,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283867127] [2024-12-02 09:05:25,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:05:25,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:05:25,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:05:25,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:05:25,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:05:25,614 INFO L87 Difference]: Start difference. First operand 794845 states and 1195388 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 09:05:29,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:05:29,349 INFO L93 Difference]: Finished difference Result 1395695 states and 2097769 transitions. [2024-12-02 09:05:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:05:29,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 174 [2024-12-02 09:05:29,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted.