./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-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_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/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_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/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_4275213d-4167-484b-9751-18f458719479/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 b178b656343d0e2ffc6b5c87d592ef5d1e640f986fa3fd9fab639777f6d58eb8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:48:49,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:48:49,557 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:48:49,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:48:49,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:48:49,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:48:49,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:48:49,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:48:49,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:48:49,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:48:49,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:48:49,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:48:49,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:48:49,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:48:49,589 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:48:49,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:48:49,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:48:49,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:48:49,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:48:49,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:48:49,591 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:48:49,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:48:49,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:48:49,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:48:49,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:48:49,593 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_4275213d-4167-484b-9751-18f458719479/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 -> b178b656343d0e2ffc6b5c87d592ef5d1e640f986fa3fd9fab639777f6d58eb8 [2024-12-02 06:48:49,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:48:49,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:48:49,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:48:49,873 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:48:49,873 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:48:49,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-12-02 06:48:52,926 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/data/4017f94f7/d21e6749c239414c8c6cca5af3b7bbe3/FLAGa8f9c1720 [2024-12-02 06:48:53,165 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:48:53,165 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-12-02 06:48:53,176 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/data/4017f94f7/d21e6749c239414c8c6cca5af3b7bbe3/FLAGa8f9c1720 [2024-12-02 06:48:53,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/data/4017f94f7/d21e6749c239414c8c6cca5af3b7bbe3 [2024-12-02 06:48:53,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:48:53,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:48:53,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:48:53,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:48:53,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:48:53,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a547f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53, skipping insertion in model container [2024-12-02 06:48:53,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:48:53,479 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_4275213d-4167-484b-9751-18f458719479/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2024-12-02 06:48:53,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:48:53,530 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:48:53,596 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_4275213d-4167-484b-9751-18f458719479/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2024-12-02 06:48:53,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:48:53,648 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:48:53,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53 WrapperNode [2024-12-02 06:48:53,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:48:53,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:48:53,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:48:53,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:48:53,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,711 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 634 [2024-12-02 06:48:53,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:48:53,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:48:53,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:48:53,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:48:53,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,745 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 06:48:53,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,755 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:48:53,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:48:53,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:48:53,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:48:53,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (1/1) ... [2024-12-02 06:48:53,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:48:53,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:48:53,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:48:53,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4275213d-4167-484b-9751-18f458719479/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:48:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:48:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:48:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:48:53,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:48:53,981 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:48:53,984 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:48:54,616 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-12-02 06:48:54,616 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:48:54,630 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:48:54,631 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 06:48:54,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:48:54 BoogieIcfgContainer [2024-12-02 06:48:54,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:48:54,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:48:54,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:48:54,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:48:54,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:48:53" (1/3) ... [2024-12-02 06:48:54,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1ffc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:48:54, skipping insertion in model container [2024-12-02 06:48:54,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:48:53" (2/3) ... [2024-12-02 06:48:54,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1ffc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:48:54, skipping insertion in model container [2024-12-02 06:48:54,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:48:54" (3/3) ... [2024-12-02 06:48:54,643 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-12-02 06:48:54,661 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:48:54,664 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c that has 1 procedures, 140 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 06:48:54,733 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:48:54,747 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;@44362703, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:48:54,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:48:54,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 138 states have (on average 1.7608695652173914) internal successors, (243), 139 states have internal predecessors, (243), 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 06:48:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 06:48:54,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:54,762 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] [2024-12-02 06:48:54,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:54,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:54,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1890044597, now seen corresponding path program 1 times [2024-12-02 06:48:54,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:54,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524830592] [2024-12-02 06:48:54,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:54,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:55,258 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 06:48:55,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:55,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524830592] [2024-12-02 06:48:55,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524830592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:55,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:55,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:48:55,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887930483] [2024-12-02 06:48:55,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:55,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:48:55,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:55,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:48:55,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:48:55,319 INFO L87 Difference]: Start difference. First operand has 140 states, 138 states have (on average 1.7608695652173914) internal successors, (243), 139 states have internal predecessors, (243), 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 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 06:48:55,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:55,423 INFO L93 Difference]: Finished difference Result 293 states and 496 transitions. [2024-12-02 06:48:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:48:55,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-12-02 06:48:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:55,435 INFO L225 Difference]: With dead ends: 293 [2024-12-02 06:48:55,436 INFO L226 Difference]: Without dead ends: 201 [2024-12-02 06:48:55,439 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 06:48:55,442 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 138 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:55,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 402 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:48:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-12-02 06:48:55,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2024-12-02 06:48:55,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.5786802030456852) internal successors, (311), 197 states have internal predecessors, (311), 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 06:48:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 311 transitions. [2024-12-02 06:48:55,487 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 311 transitions. Word has length 56 [2024-12-02 06:48:55,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:55,487 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 311 transitions. [2024-12-02 06:48:55,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 06:48:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 311 transitions. [2024-12-02 06:48:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 06:48:55,489 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:55,490 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] [2024-12-02 06:48:55,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:48:55,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:55,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:55,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1610685192, now seen corresponding path program 1 times [2024-12-02 06:48:55,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:55,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307943371] [2024-12-02 06:48:55,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:55,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:55,673 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 06:48:55,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:55,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307943371] [2024-12-02 06:48:55,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307943371] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:55,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:55,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:48:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447485440] [2024-12-02 06:48:55,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:55,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:48:55,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:55,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:48:55,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:48:55,676 INFO L87 Difference]: Start difference. First operand 198 states and 311 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 06:48:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:55,727 INFO L93 Difference]: Finished difference Result 472 states and 763 transitions. [2024-12-02 06:48:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:48:55,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-12-02 06:48:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:55,730 INFO L225 Difference]: With dead ends: 472 [2024-12-02 06:48:55,731 INFO L226 Difference]: Without dead ends: 328 [2024-12-02 06:48:55,731 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 06:48:55,732 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 118 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:55,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 391 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:48:55,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-12-02 06:48:55,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 324. [2024-12-02 06:48:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.6006191950464397) internal successors, (517), 323 states have internal predecessors, (517), 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 06:48:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 517 transitions. [2024-12-02 06:48:55,754 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 517 transitions. Word has length 58 [2024-12-02 06:48:55,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:55,755 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 517 transitions. [2024-12-02 06:48:55,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 06:48:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 517 transitions. [2024-12-02 06:48:55,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 06:48:55,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:55,757 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] [2024-12-02 06:48:55,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:48:55,757 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:55,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1017067947, now seen corresponding path program 1 times [2024-12-02 06:48:55,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:55,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165125572] [2024-12-02 06:48:55,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:55,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:55,949 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 06:48:55,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:55,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165125572] [2024-12-02 06:48:55,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165125572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:55,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:55,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:48:55,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930588941] [2024-12-02 06:48:55,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:55,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:48:55,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:55,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:48:55,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:48:55,951 INFO L87 Difference]: Start difference. First operand 324 states and 517 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 06:48:55,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:55,998 INFO L93 Difference]: Finished difference Result 836 states and 1355 transitions. [2024-12-02 06:48:55,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:48:55,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2024-12-02 06:48:55,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:56,002 INFO L225 Difference]: With dead ends: 836 [2024-12-02 06:48:56,002 INFO L226 Difference]: Without dead ends: 566 [2024-12-02 06:48:56,004 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 06:48:56,004 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 113 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:56,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 392 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:48:56,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-12-02 06:48:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 560. [2024-12-02 06:48:56,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.6046511627906976) internal successors, (897), 559 states have internal predecessors, (897), 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 06:48:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 897 transitions. [2024-12-02 06:48:56,034 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 897 transitions. Word has length 60 [2024-12-02 06:48:56,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:56,035 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 897 transitions. [2024-12-02 06:48:56,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 06:48:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 897 transitions. [2024-12-02 06:48:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 06:48:56,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:56,038 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] [2024-12-02 06:48:56,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:48:56,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:56,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash 291448600, now seen corresponding path program 1 times [2024-12-02 06:48:56,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:56,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980959198] [2024-12-02 06:48:56,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:56,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:56,291 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 06:48:56,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980959198] [2024-12-02 06:48:56,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980959198] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:56,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:56,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:48:56,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128724468] [2024-12-02 06:48:56,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:56,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:48:56,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:56,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:48:56,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:48:56,294 INFO L87 Difference]: Start difference. First operand 560 states and 897 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 06:48:56,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:56,540 INFO L93 Difference]: Finished difference Result 2856 states and 4667 transitions. [2024-12-02 06:48:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:48:56,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2024-12-02 06:48:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:56,552 INFO L225 Difference]: With dead ends: 2856 [2024-12-02 06:48:56,552 INFO L226 Difference]: Without dead ends: 2350 [2024-12-02 06:48:56,554 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 06:48:56,555 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 855 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:56,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1312 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:48:56,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2024-12-02 06:48:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 1048. [2024-12-02 06:48:56,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 1047 states have (on average 1.6131805157593124) internal successors, (1689), 1047 states have internal predecessors, (1689), 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 06:48:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1689 transitions. [2024-12-02 06:48:56,619 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1689 transitions. Word has length 62 [2024-12-02 06:48:56,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:56,619 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1689 transitions. [2024-12-02 06:48:56,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 06:48:56,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1689 transitions. [2024-12-02 06:48:56,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 06:48:56,622 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:56,622 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] [2024-12-02 06:48:56,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:48:56,623 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:56,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:56,623 INFO L85 PathProgramCache]: Analyzing trace with hash 382467820, now seen corresponding path program 1 times [2024-12-02 06:48:56,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:56,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190915006] [2024-12-02 06:48:56,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:56,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:56,815 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 06:48:56,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:56,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190915006] [2024-12-02 06:48:56,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190915006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:56,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:56,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:48:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983452858] [2024-12-02 06:48:56,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:56,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:48:56,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:56,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:48:56,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:48:56,817 INFO L87 Difference]: Start difference. First operand 1048 states and 1689 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 06:48:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:56,948 INFO L93 Difference]: Finished difference Result 3818 states and 6202 transitions. [2024-12-02 06:48:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:48:56,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2024-12-02 06:48:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:56,960 INFO L225 Difference]: With dead ends: 3818 [2024-12-02 06:48:56,960 INFO L226 Difference]: Without dead ends: 2824 [2024-12-02 06:48:56,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 06:48:56,963 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 404 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:56,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 709 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:48:56,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2024-12-02 06:48:57,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 1927. [2024-12-02 06:48:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1927 states, 1926 states have (on average 1.6137071651090342) internal successors, (3108), 1926 states have internal predecessors, (3108), 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 06:48:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 3108 transitions. [2024-12-02 06:48:57,035 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 3108 transitions. Word has length 63 [2024-12-02 06:48:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:57,035 INFO L471 AbstractCegarLoop]: Abstraction has 1927 states and 3108 transitions. [2024-12-02 06:48:57,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 06:48:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 3108 transitions. [2024-12-02 06:48:57,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 06:48:57,037 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:57,038 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] [2024-12-02 06:48:57,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:48:57,038 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:57,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:57,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1086345633, now seen corresponding path program 1 times [2024-12-02 06:48:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:57,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712548324] [2024-12-02 06:48:57,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:57,170 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 06:48:57,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:57,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712548324] [2024-12-02 06:48:57,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712548324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:57,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:57,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:48:57,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441962178] [2024-12-02 06:48:57,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:57,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:48:57,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:57,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:48:57,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:48:57,172 INFO L87 Difference]: Start difference. First operand 1927 states and 3108 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 06:48:57,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:57,303 INFO L93 Difference]: Finished difference Result 5666 states and 9208 transitions. [2024-12-02 06:48:57,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:48:57,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2024-12-02 06:48:57,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:57,318 INFO L225 Difference]: With dead ends: 5666 [2024-12-02 06:48:57,318 INFO L226 Difference]: Without dead ends: 3793 [2024-12-02 06:48:57,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 06:48:57,322 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 402 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:57,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 715 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:48:57,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2024-12-02 06:48:57,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 2844. [2024-12-02 06:48:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2843 states have (on average 1.6120295462539571) internal successors, (4583), 2843 states have internal predecessors, (4583), 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 06:48:57,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 4583 transitions. [2024-12-02 06:48:57,413 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 4583 transitions. Word has length 64 [2024-12-02 06:48:57,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:57,414 INFO L471 AbstractCegarLoop]: Abstraction has 2844 states and 4583 transitions. [2024-12-02 06:48:57,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 06:48:57,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 4583 transitions. [2024-12-02 06:48:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 06:48:57,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:57,416 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] [2024-12-02 06:48:57,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:48:57,416 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:57,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:57,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1879078355, now seen corresponding path program 1 times [2024-12-02 06:48:57,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:57,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724511781] [2024-12-02 06:48:57,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:57,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:57,497 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 06:48:57,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:57,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724511781] [2024-12-02 06:48:57,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724511781] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:57,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:57,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:48:57,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389560156] [2024-12-02 06:48:57,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:57,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:48:57,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:57,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:48:57,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:48:57,499 INFO L87 Difference]: Start difference. First operand 2844 states and 4583 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 06:48:57,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:57,560 INFO L93 Difference]: Finished difference Result 6202 states and 10046 transitions. [2024-12-02 06:48:57,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:48:57,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-12-02 06:48:57,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:57,592 INFO L225 Difference]: With dead ends: 6202 [2024-12-02 06:48:57,592 INFO L226 Difference]: Without dead ends: 4227 [2024-12-02 06:48:57,595 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 06:48:57,596 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 117 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:57,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 463 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:48:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2024-12-02 06:48:57,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 4225. [2024-12-02 06:48:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4225 states, 4224 states have (on average 1.6072443181818181) internal successors, (6789), 4224 states have internal predecessors, (6789), 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 06:48:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4225 states to 4225 states and 6789 transitions. [2024-12-02 06:48:57,702 INFO L78 Accepts]: Start accepts. Automaton has 4225 states and 6789 transitions. Word has length 65 [2024-12-02 06:48:57,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:57,703 INFO L471 AbstractCegarLoop]: Abstraction has 4225 states and 6789 transitions. [2024-12-02 06:48:57,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 06:48:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4225 states and 6789 transitions. [2024-12-02 06:48:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 06:48:57,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:57,704 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] [2024-12-02 06:48:57,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:48:57,704 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:57,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:57,705 INFO L85 PathProgramCache]: Analyzing trace with hash -450865020, now seen corresponding path program 1 times [2024-12-02 06:48:57,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:57,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455814632] [2024-12-02 06:48:57,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:57,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:57,805 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 06:48:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:57,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455814632] [2024-12-02 06:48:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455814632] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:57,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:48:57,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938655263] [2024-12-02 06:48:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:57,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:48:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:57,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:48:57,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:48:57,807 INFO L87 Difference]: Start difference. First operand 4225 states and 6789 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 06:48:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:57,851 INFO L93 Difference]: Finished difference Result 8209 states and 13267 transitions. [2024-12-02 06:48:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:48:57,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-12-02 06:48:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:57,872 INFO L225 Difference]: With dead ends: 8209 [2024-12-02 06:48:57,872 INFO L226 Difference]: Without dead ends: 5821 [2024-12-02 06:48:57,876 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 06:48:57,876 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 112 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:57,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 446 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:48:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5821 states. [2024-12-02 06:48:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5821 to 5819. [2024-12-02 06:48:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5819 states, 5818 states have (on average 1.6020969405293914) internal successors, (9321), 5818 states have internal predecessors, (9321), 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 06:48:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5819 states to 5819 states and 9321 transitions. [2024-12-02 06:48:58,006 INFO L78 Accepts]: Start accepts. Automaton has 5819 states and 9321 transitions. Word has length 65 [2024-12-02 06:48:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:58,006 INFO L471 AbstractCegarLoop]: Abstraction has 5819 states and 9321 transitions. [2024-12-02 06:48:58,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 06:48:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5819 states and 9321 transitions. [2024-12-02 06:48:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 06:48:58,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:58,007 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] [2024-12-02 06:48:58,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:48:58,007 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:58,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash 629635603, now seen corresponding path program 1 times [2024-12-02 06:48:58,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:58,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988399648] [2024-12-02 06:48:58,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:58,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:58,145 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 06:48:58,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:58,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988399648] [2024-12-02 06:48:58,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988399648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:58,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:58,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:48:58,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627531120] [2024-12-02 06:48:58,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:58,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:48:58,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:58,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:48:58,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:48:58,147 INFO L87 Difference]: Start difference. First operand 5819 states and 9321 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 06:48:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:58,270 INFO L93 Difference]: Finished difference Result 18204 states and 29299 transitions. [2024-12-02 06:48:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:48:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2024-12-02 06:48:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:58,310 INFO L225 Difference]: With dead ends: 18204 [2024-12-02 06:48:58,310 INFO L226 Difference]: Without dead ends: 12519 [2024-12-02 06:48:58,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 06:48:58,319 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 400 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:58,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 583 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:48:58,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12519 states. [2024-12-02 06:48:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12519 to 9133. [2024-12-02 06:48:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9133 states, 9132 states have (on average 1.5958169075777486) internal successors, (14573), 9132 states have internal predecessors, (14573), 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 06:48:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9133 states to 9133 states and 14573 transitions. [2024-12-02 06:48:58,571 INFO L78 Accepts]: Start accepts. Automaton has 9133 states and 14573 transitions. Word has length 65 [2024-12-02 06:48:58,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:58,572 INFO L471 AbstractCegarLoop]: Abstraction has 9133 states and 14573 transitions. [2024-12-02 06:48:58,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 06:48:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 9133 states and 14573 transitions. [2024-12-02 06:48:58,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 06:48:58,573 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:58,573 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] [2024-12-02 06:48:58,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:48:58,573 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:58,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:58,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1734684554, now seen corresponding path program 1 times [2024-12-02 06:48:58,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:58,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563890438] [2024-12-02 06:48:58,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:58,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:58,636 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 06:48:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563890438] [2024-12-02 06:48:58,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563890438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:58,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:58,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:48:58,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207157550] [2024-12-02 06:48:58,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:58,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:48:58,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:58,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:48:58,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:48:58,638 INFO L87 Difference]: Start difference. First operand 9133 states and 14573 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 06:48:58,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:58,694 INFO L93 Difference]: Finished difference Result 21734 states and 34903 transitions. [2024-12-02 06:48:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:48:58,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-12-02 06:48:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:58,717 INFO L225 Difference]: With dead ends: 21734 [2024-12-02 06:48:58,717 INFO L226 Difference]: Without dead ends: 12682 [2024-12-02 06:48:58,725 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 06:48:58,726 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 122 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:58,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 489 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:48:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12682 states. [2024-12-02 06:48:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12682 to 12680. [2024-12-02 06:48:58,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12680 states, 12679 states have (on average 1.6049372978941556) internal successors, (20349), 12679 states have internal predecessors, (20349), 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 06:48:58,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 20349 transitions. [2024-12-02 06:48:58,922 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 20349 transitions. Word has length 65 [2024-12-02 06:48:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:58,922 INFO L471 AbstractCegarLoop]: Abstraction has 12680 states and 20349 transitions. [2024-12-02 06:48:58,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 06:48:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 20349 transitions. [2024-12-02 06:48:58,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 06:48:58,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:58,924 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] [2024-12-02 06:48:58,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:48:58,924 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:58,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:58,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2027885532, now seen corresponding path program 1 times [2024-12-02 06:48:58,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:58,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364576935] [2024-12-02 06:48:58,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:59,201 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 06:48:59,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:59,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364576935] [2024-12-02 06:48:59,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364576935] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:59,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:59,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:48:59,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151322764] [2024-12-02 06:48:59,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:59,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:48:59,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:59,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:48:59,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:48:59,203 INFO L87 Difference]: Start difference. First operand 12680 states and 20349 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 06:48:59,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:48:59,399 INFO L93 Difference]: Finished difference Result 25281 states and 40588 transitions. [2024-12-02 06:48:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:48:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-12-02 06:48:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:48:59,433 INFO L225 Difference]: With dead ends: 25281 [2024-12-02 06:48:59,433 INFO L226 Difference]: Without dead ends: 12682 [2024-12-02 06:48:59,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:48:59,445 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 340 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:48:59,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 579 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:48:59,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12682 states. [2024-12-02 06:48:59,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12682 to 12680. [2024-12-02 06:48:59,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12680 states, 12679 states have (on average 1.5931067118857953) internal successors, (20199), 12679 states have internal predecessors, (20199), 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 06:48:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 20199 transitions. [2024-12-02 06:48:59,634 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 20199 transitions. Word has length 67 [2024-12-02 06:48:59,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:48:59,634 INFO L471 AbstractCegarLoop]: Abstraction has 12680 states and 20199 transitions. [2024-12-02 06:48:59,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 06:48:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 20199 transitions. [2024-12-02 06:48:59,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 06:48:59,634 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:48:59,635 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] [2024-12-02 06:48:59,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:48:59,635 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:48:59,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:48:59,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1776446511, now seen corresponding path program 1 times [2024-12-02 06:48:59,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:48:59,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436746460] [2024-12-02 06:48:59,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:48:59,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:48:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:48:59,841 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 06:48:59,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:48:59,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436746460] [2024-12-02 06:48:59,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436746460] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:48:59,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:48:59,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:48:59,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188339468] [2024-12-02 06:48:59,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:48:59,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:48:59,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:48:59,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:48:59,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:48:59,843 INFO L87 Difference]: Start difference. First operand 12680 states and 20199 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 06:49:00,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:00,039 INFO L93 Difference]: Finished difference Result 36568 states and 58408 transitions. [2024-12-02 06:49:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:49:00,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 70 [2024-12-02 06:49:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:00,083 INFO L225 Difference]: With dead ends: 36568 [2024-12-02 06:49:00,083 INFO L226 Difference]: Without dead ends: 23969 [2024-12-02 06:49:00,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:49:00,095 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 334 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:00,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 583 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:49:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23969 states. [2024-12-02 06:49:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23969 to 23967. [2024-12-02 06:49:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23967 states, 23966 states have (on average 1.5816156221313526) internal successors, (37905), 23966 states have internal predecessors, (37905), 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 06:49:00,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23967 states to 23967 states and 37905 transitions. [2024-12-02 06:49:00,470 INFO L78 Accepts]: Start accepts. Automaton has 23967 states and 37905 transitions. Word has length 70 [2024-12-02 06:49:00,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:00,470 INFO L471 AbstractCegarLoop]: Abstraction has 23967 states and 37905 transitions. [2024-12-02 06:49:00,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 06:49:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 23967 states and 37905 transitions. [2024-12-02 06:49:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 06:49:00,471 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:00,471 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] [2024-12-02 06:49:00,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:49:00,471 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:00,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash 762823713, now seen corresponding path program 1 times [2024-12-02 06:49:00,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170576429] [2024-12-02 06:49:00,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:00,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:01,055 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 06:49:01,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:01,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170576429] [2024-12-02 06:49:01,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170576429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:01,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:01,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:49:01,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662844341] [2024-12-02 06:49:01,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:01,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:49:01,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:01,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:49:01,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:49:01,057 INFO L87 Difference]: Start difference. First operand 23967 states and 37905 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 06:49:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:01,195 INFO L93 Difference]: Finished difference Result 24743 states and 39067 transitions. [2024-12-02 06:49:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:49:01,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2024-12-02 06:49:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:01,240 INFO L225 Difference]: With dead ends: 24743 [2024-12-02 06:49:01,240 INFO L226 Difference]: Without dead ends: 24741 [2024-12-02 06:49:01,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:49:01,250 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:01,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 820 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:49:01,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24741 states. [2024-12-02 06:49:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24741 to 24741. [2024-12-02 06:49:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24741 states, 24740 states have (on average 1.563055780113177) internal successors, (38670), 24740 states have internal predecessors, (38670), 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 06:49:01,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24741 states to 24741 states and 38670 transitions. [2024-12-02 06:49:01,734 INFO L78 Accepts]: Start accepts. Automaton has 24741 states and 38670 transitions. Word has length 71 [2024-12-02 06:49:01,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:01,734 INFO L471 AbstractCegarLoop]: Abstraction has 24741 states and 38670 transitions. [2024-12-02 06:49:01,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 06:49:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 24741 states and 38670 transitions. [2024-12-02 06:49:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 06:49:01,736 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:01,737 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:01,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:49:01,737 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:01,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:01,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1613729099, now seen corresponding path program 1 times [2024-12-02 06:49:01,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:01,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682724594] [2024-12-02 06:49:01,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:01,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:49:01,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:01,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682724594] [2024-12-02 06:49:01,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682724594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:01,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:01,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:49:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552377444] [2024-12-02 06:49:01,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:01,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:49:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:01,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:49:01,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:49:01,930 INFO L87 Difference]: Start difference. First operand 24741 states and 38670 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 06:49:02,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:02,198 INFO L93 Difference]: Finished difference Result 61558 states and 96524 transitions. [2024-12-02 06:49:02,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:49:02,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 06:49:02,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:02,277 INFO L225 Difference]: With dead ends: 61558 [2024-12-02 06:49:02,277 INFO L226 Difference]: Without dead ends: 50224 [2024-12-02 06:49:02,297 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 06:49:02,297 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 512 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:02,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 934 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:49:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50224 states. [2024-12-02 06:49:03,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50224 to 38776. [2024-12-02 06:49:03,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38776 states, 38775 states have (on average 1.5599742101869762) internal successors, (60488), 38775 states have internal predecessors, (60488), 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 06:49:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38776 states to 38776 states and 60488 transitions. [2024-12-02 06:49:03,098 INFO L78 Accepts]: Start accepts. Automaton has 38776 states and 60488 transitions. Word has length 93 [2024-12-02 06:49:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:03,098 INFO L471 AbstractCegarLoop]: Abstraction has 38776 states and 60488 transitions. [2024-12-02 06:49:03,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 06:49:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 38776 states and 60488 transitions. [2024-12-02 06:49:03,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 06:49:03,099 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:03,100 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:03,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:49:03,100 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:03,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:03,100 INFO L85 PathProgramCache]: Analyzing trace with hash 351294822, now seen corresponding path program 1 times [2024-12-02 06:49:03,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:03,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777057621] [2024-12-02 06:49:03,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:03,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 06:49:03,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:03,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777057621] [2024-12-02 06:49:03,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777057621] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:03,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:03,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:49:03,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310622423] [2024-12-02 06:49:03,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:03,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:49:03,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:03,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:49:03,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:49:03,227 INFO L87 Difference]: Start difference. First operand 38776 states and 60488 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:03,498 INFO L93 Difference]: Finished difference Result 66062 states and 103636 transitions. [2024-12-02 06:49:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:49:03,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 06:49:03,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:03,720 INFO L225 Difference]: With dead ends: 66062 [2024-12-02 06:49:03,720 INFO L226 Difference]: Without dead ends: 54728 [2024-12-02 06:49:03,735 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 06:49:03,738 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 515 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:03,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 931 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:49:03,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54728 states. [2024-12-02 06:49:04,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54728 to 52462. [2024-12-02 06:49:04,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52462 states, 52461 states have (on average 1.5615409542326681) internal successors, (81920), 52461 states have internal predecessors, (81920), 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 06:49:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52462 states to 52462 states and 81920 transitions. [2024-12-02 06:49:04,791 INFO L78 Accepts]: Start accepts. Automaton has 52462 states and 81920 transitions. Word has length 93 [2024-12-02 06:49:04,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:04,791 INFO L471 AbstractCegarLoop]: Abstraction has 52462 states and 81920 transitions. [2024-12-02 06:49:04,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 52462 states and 81920 transitions. [2024-12-02 06:49:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 06:49:04,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:04,794 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:04,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:49:04,794 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:04,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1758122900, now seen corresponding path program 1 times [2024-12-02 06:49:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:04,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207987020] [2024-12-02 06:49:04,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:49:04,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:04,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207987020] [2024-12-02 06:49:04,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207987020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:04,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:04,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:49:04,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65978814] [2024-12-02 06:49:04,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:04,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:49:04,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:04,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:49:04,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:49:04,964 INFO L87 Difference]: Start difference. First operand 52462 states and 81920 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:05,377 INFO L93 Difference]: Finished difference Result 78147 states and 122550 transitions. [2024-12-02 06:49:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:49:05,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 06:49:05,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:05,455 INFO L225 Difference]: With dead ends: 78147 [2024-12-02 06:49:05,455 INFO L226 Difference]: Without dead ends: 63840 [2024-12-02 06:49:05,470 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 06:49:05,470 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 509 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:05,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1027 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:49:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63840 states. [2024-12-02 06:49:06,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63840 to 61574. [2024-12-02 06:49:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61574 states, 61573 states have (on average 1.5631851623276436) internal successors, (96250), 61573 states have internal predecessors, (96250), 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 06:49:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61574 states to 61574 states and 96250 transitions. [2024-12-02 06:49:06,306 INFO L78 Accepts]: Start accepts. Automaton has 61574 states and 96250 transitions. Word has length 93 [2024-12-02 06:49:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:06,306 INFO L471 AbstractCegarLoop]: Abstraction has 61574 states and 96250 transitions. [2024-12-02 06:49:06,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand 61574 states and 96250 transitions. [2024-12-02 06:49:06,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 06:49:06,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:06,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:06,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:49:06,308 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:06,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:06,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1270260760, now seen corresponding path program 1 times [2024-12-02 06:49:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:06,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059728467] [2024-12-02 06:49:06,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:06,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:49:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059728467] [2024-12-02 06:49:06,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059728467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:06,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:06,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:49:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525057988] [2024-12-02 06:49:06,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:06,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:49:06,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:06,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:49:06,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:49:06,409 INFO L87 Difference]: Start difference. First operand 61574 states and 96250 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 06:49:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:06,889 INFO L93 Difference]: Finished difference Result 105950 states and 166135 transitions. [2024-12-02 06:49:06,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:49:06,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 94 [2024-12-02 06:49:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:07,041 INFO L225 Difference]: With dead ends: 105950 [2024-12-02 06:49:07,041 INFO L226 Difference]: Without dead ends: 82531 [2024-12-02 06:49:07,069 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 06:49:07,069 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 227 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:07,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 731 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:49:07,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82531 states. [2024-12-02 06:49:08,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82531 to 80267. [2024-12-02 06:49:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80267 states, 80266 states have (on average 1.5606358856801137) internal successors, (125266), 80266 states have internal predecessors, (125266), 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 06:49:08,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80267 states to 80267 states and 125266 transitions. [2024-12-02 06:49:08,390 INFO L78 Accepts]: Start accepts. Automaton has 80267 states and 125266 transitions. Word has length 94 [2024-12-02 06:49:08,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:08,390 INFO L471 AbstractCegarLoop]: Abstraction has 80267 states and 125266 transitions. [2024-12-02 06:49:08,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 06:49:08,390 INFO L276 IsEmpty]: Start isEmpty. Operand 80267 states and 125266 transitions. [2024-12-02 06:49:08,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 06:49:08,392 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:08,393 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:08,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:49:08,393 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:08,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:08,394 INFO L85 PathProgramCache]: Analyzing trace with hash 36164624, now seen corresponding path program 1 times [2024-12-02 06:49:08,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:08,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179616039] [2024-12-02 06:49:08,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:08,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:08,509 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:49:08,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:08,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179616039] [2024-12-02 06:49:08,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179616039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:08,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:08,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:49:08,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506193004] [2024-12-02 06:49:08,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:08,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:49:08,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:08,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:49:08,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:49:08,511 INFO L87 Difference]: Start difference. First operand 80267 states and 125266 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 06:49:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:09,246 INFO L93 Difference]: Finished difference Result 183872 states and 287242 transitions. [2024-12-02 06:49:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:49:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 06:49:09,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:09,391 INFO L225 Difference]: With dead ends: 183872 [2024-12-02 06:49:09,391 INFO L226 Difference]: Without dead ends: 141816 [2024-12-02 06:49:09,423 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 06:49:09,424 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 103 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:09,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 386 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:49:09,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141816 states. [2024-12-02 06:49:10,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141816 to 141538. [2024-12-02 06:49:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141538 states, 141537 states have (on average 1.5580872845969604) internal successors, (220527), 141537 states have internal predecessors, (220527), 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 06:49:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141538 states to 141538 states and 220527 transitions. [2024-12-02 06:49:11,411 INFO L78 Accepts]: Start accepts. Automaton has 141538 states and 220527 transitions. Word has length 94 [2024-12-02 06:49:11,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:11,411 INFO L471 AbstractCegarLoop]: Abstraction has 141538 states and 220527 transitions. [2024-12-02 06:49:11,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 06:49:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 141538 states and 220527 transitions. [2024-12-02 06:49:11,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:49:11,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:11,413 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:11,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:49:11,414 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:11,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:11,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1988921020, now seen corresponding path program 1 times [2024-12-02 06:49:11,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:11,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619656709] [2024-12-02 06:49:11,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:11,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:49:11,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:11,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619656709] [2024-12-02 06:49:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619656709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:49:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609210126] [2024-12-02 06:49:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:11,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:49:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:11,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:49:11,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:49:11,552 INFO L87 Difference]: Start difference. First operand 141538 states and 220527 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:12,336 INFO L93 Difference]: Finished difference Result 214586 states and 335904 transitions. [2024-12-02 06:49:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:49:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 06:49:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:12,552 INFO L225 Difference]: With dead ends: 214586 [2024-12-02 06:49:12,552 INFO L226 Difference]: Without dead ends: 174862 [2024-12-02 06:49:12,595 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 06:49:12,595 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 238 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:12,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 659 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:49:12,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174862 states. [2024-12-02 06:49:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174862 to 165834. [2024-12-02 06:49:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165834 states, 165833 states have (on average 1.5575971006976899) internal successors, (258301), 165833 states have internal predecessors, (258301), 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 06:49:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165834 states to 165834 states and 258301 transitions. [2024-12-02 06:49:14,577 INFO L78 Accepts]: Start accepts. Automaton has 165834 states and 258301 transitions. Word has length 95 [2024-12-02 06:49:14,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:14,577 INFO L471 AbstractCegarLoop]: Abstraction has 165834 states and 258301 transitions. [2024-12-02 06:49:14,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 165834 states and 258301 transitions. [2024-12-02 06:49:14,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:49:14,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:14,578 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:14,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:49:14,579 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:14,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1437742065, now seen corresponding path program 1 times [2024-12-02 06:49:14,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:14,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862875705] [2024-12-02 06:49:14,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:14,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:49:14,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:14,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862875705] [2024-12-02 06:49:14,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862875705] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:14,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:14,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:49:14,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723951933] [2024-12-02 06:49:14,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:14,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:49:14,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:14,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:49:14,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:49:14,652 INFO L87 Difference]: Start difference. First operand 165834 states and 258301 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:15,908 INFO L93 Difference]: Finished difference Result 349216 states and 545551 transitions. [2024-12-02 06:49:15,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:49:15,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 06:49:15,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:16,531 INFO L225 Difference]: With dead ends: 349216 [2024-12-02 06:49:16,531 INFO L226 Difference]: Without dead ends: 271380 [2024-12-02 06:49:16,565 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 06:49:16,566 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 103 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:16,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 385 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:49:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271380 states. [2024-12-02 06:49:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271380 to 270646. [2024-12-02 06:49:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270646 states, 270645 states have (on average 1.5566258382752314) internal successors, (421293), 270645 states have internal predecessors, (421293), 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 06:49:20,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270646 states to 270646 states and 421293 transitions. [2024-12-02 06:49:20,269 INFO L78 Accepts]: Start accepts. Automaton has 270646 states and 421293 transitions. Word has length 95 [2024-12-02 06:49:20,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:20,269 INFO L471 AbstractCegarLoop]: Abstraction has 270646 states and 421293 transitions. [2024-12-02 06:49:20,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:49:20,270 INFO L276 IsEmpty]: Start isEmpty. Operand 270646 states and 421293 transitions. [2024-12-02 06:49:20,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:49:20,271 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:20,271 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:20,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 06:49:20,271 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:20,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:20,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1035854142, now seen corresponding path program 1 times [2024-12-02 06:49:20,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:20,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801422006] [2024-12-02 06:49:20,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:20,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:49:20,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:20,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801422006] [2024-12-02 06:49:20,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801422006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:20,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:20,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:49:20,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138680319] [2024-12-02 06:49:20,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:20,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:49:20,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:20,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:49:20,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:49:20,344 INFO L87 Difference]: Start difference. First operand 270646 states and 421293 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 06:49:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:22,726 INFO L93 Difference]: Finished difference Result 797627 states and 1241466 transitions. [2024-12-02 06:49:22,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:49:22,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 06:49:22,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:23,393 INFO L225 Difference]: With dead ends: 797627 [2024-12-02 06:49:23,393 INFO L226 Difference]: Without dead ends: 527051 [2024-12-02 06:49:23,477 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 06:49:23,478 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 142 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:23,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 472 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:49:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527051 states. [2024-12-02 06:49:29,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527051 to 527049. [2024-12-02 06:49:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527049 states, 527048 states have (on average 1.5468875700125986) internal successors, (815284), 527048 states have internal predecessors, (815284), 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 06:49:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527049 states to 527049 states and 815284 transitions. [2024-12-02 06:49:31,112 INFO L78 Accepts]: Start accepts. Automaton has 527049 states and 815284 transitions. Word has length 95 [2024-12-02 06:49:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:31,112 INFO L471 AbstractCegarLoop]: Abstraction has 527049 states and 815284 transitions. [2024-12-02 06:49:31,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 06:49:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 527049 states and 815284 transitions. [2024-12-02 06:49:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:49:31,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:31,115 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:31,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:49:31,115 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:31,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:31,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1015816888, now seen corresponding path program 1 times [2024-12-02 06:49:31,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:31,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944067084] [2024-12-02 06:49:31,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:31,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:49:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:31,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944067084] [2024-12-02 06:49:31,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944067084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:31,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:31,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:49:31,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879476918] [2024-12-02 06:49:31,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:31,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:49:31,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:31,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:49:31,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:49:31,199 INFO L87 Difference]: Start difference. First operand 527049 states and 815284 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 06:49:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:36,204 INFO L93 Difference]: Finished difference Result 1550549 states and 2398075 transitions. [2024-12-02 06:49:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:49:36,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 06:49:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:49:37,708 INFO L225 Difference]: With dead ends: 1550549 [2024-12-02 06:49:37,708 INFO L226 Difference]: Without dead ends: 1023637 [2024-12-02 06:49:37,885 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 06:49:37,887 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 160 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:49:37,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 506 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:49:38,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023637 states. [2024-12-02 06:49:49,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023637 to 1023635. [2024-12-02 06:49:49,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023635 states, 1023634 states have (on average 1.5361945773587045) internal successors, (1572501), 1023634 states have internal predecessors, (1572501), 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 06:49:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023635 states to 1023635 states and 1572501 transitions. [2024-12-02 06:49:52,223 INFO L78 Accepts]: Start accepts. Automaton has 1023635 states and 1572501 transitions. Word has length 95 [2024-12-02 06:49:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:49:52,223 INFO L471 AbstractCegarLoop]: Abstraction has 1023635 states and 1572501 transitions. [2024-12-02 06:49:52,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 06:49:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1023635 states and 1572501 transitions. [2024-12-02 06:49:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 06:49:52,227 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:52,227 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:52,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:49:52,227 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:52,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:52,228 INFO L85 PathProgramCache]: Analyzing trace with hash 393120711, now seen corresponding path program 1 times [2024-12-02 06:49:52,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:52,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084678669] [2024-12-02 06:49:52,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:52,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:49:52,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:52,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084678669] [2024-12-02 06:49:52,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084678669] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:49:52,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:49:52,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:49:52,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231482629] [2024-12-02 06:49:52,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:49:52,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:49:52,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:49:52,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:49:52,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:49:52,357 INFO L87 Difference]: Start difference. First operand 1023635 states and 1572501 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 06:49:58,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:49:58,677 INFO L93 Difference]: Finished difference Result 2039395 states and 3137051 transitions. [2024-12-02 06:49:58,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:49:58,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2024-12-02 06:49:58,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:00,189 INFO L225 Difference]: With dead ends: 2039395 [2024-12-02 06:50:00,189 INFO L226 Difference]: Without dead ends: 1016021 [2024-12-02 06:50:00,493 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 06:50:00,494 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 96 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 451 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 06:50:00,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 451 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:01,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016021 states. [2024-12-02 06:50:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016021 to 1016019. [2024-12-02 06:50:11,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016019 states, 1016018 states have (on average 1.5252219940985297) internal successors, (1549653), 1016018 states have internal predecessors, (1549653), 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 06:50:13,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016019 states to 1016019 states and 1549653 transitions. [2024-12-02 06:50:13,540 INFO L78 Accepts]: Start accepts. Automaton has 1016019 states and 1549653 transitions. Word has length 96 [2024-12-02 06:50:13,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:13,540 INFO L471 AbstractCegarLoop]: Abstraction has 1016019 states and 1549653 transitions. [2024-12-02 06:50:13,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 06:50:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1016019 states and 1549653 transitions. [2024-12-02 06:50:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 06:50:13,543 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:13,543 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:13,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:50:13,543 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:13,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:13,544 INFO L85 PathProgramCache]: Analyzing trace with hash 349601791, now seen corresponding path program 1 times [2024-12-02 06:50:13,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:13,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812090453] [2024-12-02 06:50:13,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:50:13,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:13,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812090453] [2024-12-02 06:50:13,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812090453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:13,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:13,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543209137] [2024-12-02 06:50:13,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:13,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:13,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:13,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:13,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:13,628 INFO L87 Difference]: Start difference. First operand 1016019 states and 1549653 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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)