./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i --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_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/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_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/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_d0212f10-1d73-47bb-8243-4e49146b563d/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 5e929c4003dd56b80bb766773f31b5c9376f023636b5de2c888cd8fd3433b56e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:52:23,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:52:23,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:52:23,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:52:23,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:52:23,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:52:23,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:52:23,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:52:23,703 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:52:23,703 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:52:23,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:52:23,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:52:23,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:52:23,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:52:23,704 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:52:23,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:52:23,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:52:23,704 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:52:23,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:52:23,705 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:52:23,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:52:23,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:52:23,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:52:23,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:52:23,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:52:23,707 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_d0212f10-1d73-47bb-8243-4e49146b563d/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 -> 5e929c4003dd56b80bb766773f31b5c9376f023636b5de2c888cd8fd3433b56e [2024-12-02 06:52:23,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:52:23,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:52:23,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:52:23,951 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:52:23,951 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:52:23,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i [2024-12-02 06:52:26,581 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/data/2c56b855a/5b3c768575984498899c3a134af49bbf/FLAG4f77d6843 [2024-12-02 06:52:26,801 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:52:26,802 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i [2024-12-02 06:52:26,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/data/2c56b855a/5b3c768575984498899c3a134af49bbf/FLAG4f77d6843 [2024-12-02 06:52:27,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/data/2c56b855a/5b3c768575984498899c3a134af49bbf [2024-12-02 06:52:27,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:52:27,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:52:27,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:52:27,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:52:27,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:52:27,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42584471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27, skipping insertion in model container [2024-12-02 06:52:27,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:52:27,285 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_d0212f10-1d73-47bb-8243-4e49146b563d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i[916,929] [2024-12-02 06:52:27,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:52:27,350 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:52:27,359 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_d0212f10-1d73-47bb-8243-4e49146b563d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-85.i[916,929] [2024-12-02 06:52:27,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:52:27,411 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:52:27,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27 WrapperNode [2024-12-02 06:52:27,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:52:27,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:52:27,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:52:27,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:52:27,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,469 INFO L138 Inliner]: procedures = 26, calls = 190, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 560 [2024-12-02 06:52:27,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:52:27,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:52:27,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:52:27,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:52:27,479 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,509 INFO L175 MemorySlicer]: Split 139 memory accesses to 18 slices as follows [2, 7, 15, 14, 5, 8, 10, 6, 8, 5, 6, 6, 6, 9, 10, 6, 9, 7]. 11 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 22 writes are split as follows [0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1]. [2024-12-02 06:52:27,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,525 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,527 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:52:27,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:52:27,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:52:27,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:52:27,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (1/1) ... [2024-12-02 06:52:27,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:52:27,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:27,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:52:27,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 06:52:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 06:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 06:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:52:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 06:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 06:52:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:52:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:52:27,747 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:52:27,749 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:52:28,240 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-12-02 06:52:28,240 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:52:28,250 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:52:28,251 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:52:28,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:28 BoogieIcfgContainer [2024-12-02 06:52:28,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:52:28,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:52:28,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:52:28,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:52:28,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:27" (1/3) ... [2024-12-02 06:52:28,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec230aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:28, skipping insertion in model container [2024-12-02 06:52:28,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:27" (2/3) ... [2024-12-02 06:52:28,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec230aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:28, skipping insertion in model container [2024-12-02 06:52:28,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:28" (3/3) ... [2024-12-02 06:52:28,259 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-85.i [2024-12-02 06:52:28,270 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:52:28,272 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-85.i that has 2 procedures, 131 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:52:28,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:52:28,326 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;@77dc5c4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:52:28,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:52:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 06:52:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 06:52:28,340 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:28,341 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:28,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:28,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash -632733008, now seen corresponding path program 1 times [2024-12-02 06:52:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:28,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078919942] [2024-12-02 06:52:28,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-12-02 06:52:28,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:28,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078919942] [2024-12-02 06:52:28,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078919942] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:28,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782609005] [2024-12-02 06:52:28,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:28,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:28,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:28,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:28,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:52:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:28,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:52:28,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-12-02 06:52:28,981 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:28,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782609005] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:28,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:28,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:52:28,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758825980] [2024-12-02 06:52:28,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:28,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:52:28,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:29,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:52:29,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:52:29,012 INFO L87 Difference]: Start difference. First operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 06:52:29,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:29,046 INFO L93 Difference]: Finished difference Result 255 states and 399 transitions. [2024-12-02 06:52:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:52:29,048 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2024-12-02 06:52:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:29,054 INFO L225 Difference]: With dead ends: 255 [2024-12-02 06:52:29,054 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 06:52:29,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:52:29,061 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:29,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:29,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 06:52:29,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-12-02 06:52:29,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 102 states have internal predecessors, (138), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 06:52:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 184 transitions. [2024-12-02 06:52:29,110 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 184 transitions. Word has length 179 [2024-12-02 06:52:29,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:29,111 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 184 transitions. [2024-12-02 06:52:29,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 06:52:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 184 transitions. [2024-12-02 06:52:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 06:52:29,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:29,116 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:29,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:52:29,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:52:29,317 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:29,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash -493224382, now seen corresponding path program 1 times [2024-12-02 06:52:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:29,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267997554] [2024-12-02 06:52:29,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:29,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:31,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:31,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267997554] [2024-12-02 06:52:31,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267997554] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:31,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:31,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:52:31,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828792211] [2024-12-02 06:52:31,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:31,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:52:31,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:31,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:52:31,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:31,010 INFO L87 Difference]: Start difference. First operand 127 states and 184 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:52:31,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:31,620 INFO L93 Difference]: Finished difference Result 470 states and 679 transitions. [2024-12-02 06:52:31,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:52:31,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 179 [2024-12-02 06:52:31,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:31,625 INFO L225 Difference]: With dead ends: 470 [2024-12-02 06:52:31,625 INFO L226 Difference]: Without dead ends: 346 [2024-12-02 06:52:31,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:52:31,626 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 746 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:31,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 893 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:52:31,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-12-02 06:52:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 199. [2024-12-02 06:52:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 171 states have (on average 1.391812865497076) internal successors, (238), 172 states have internal predecessors, (238), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:31,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 288 transitions. [2024-12-02 06:52:31,658 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 288 transitions. Word has length 179 [2024-12-02 06:52:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:31,659 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 288 transitions. [2024-12-02 06:52:31,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:52:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 288 transitions. [2024-12-02 06:52:31,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:31,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:31,663 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:31,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:52:31,663 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:31,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:31,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1535301185, now seen corresponding path program 1 times [2024-12-02 06:52:31,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:31,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900981138] [2024-12-02 06:52:31,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:31,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:32,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:32,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900981138] [2024-12-02 06:52:32,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900981138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:32,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:32,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:32,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620181598] [2024-12-02 06:52:32,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:32,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:32,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:32,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:32,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:32,054 INFO L87 Difference]: Start difference. First operand 199 states and 288 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:32,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:32,259 INFO L93 Difference]: Finished difference Result 575 states and 834 transitions. [2024-12-02 06:52:32,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:32,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:32,264 INFO L225 Difference]: With dead ends: 575 [2024-12-02 06:52:32,264 INFO L226 Difference]: Without dead ends: 379 [2024-12-02 06:52:32,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:32,266 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 169 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:32,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 638 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:32,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-12-02 06:52:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 203. [2024-12-02 06:52:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 175 states have (on average 1.3828571428571428) internal successors, (242), 176 states have internal predecessors, (242), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2024-12-02 06:52:32,293 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 180 [2024-12-02 06:52:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:32,294 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2024-12-02 06:52:32,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2024-12-02 06:52:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:32,297 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:32,297 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:32,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:52:32,297 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:32,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:32,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1213410666, now seen corresponding path program 1 times [2024-12-02 06:52:32,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:32,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015234119] [2024-12-02 06:52:32,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:32,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:32,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:32,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015234119] [2024-12-02 06:52:32,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015234119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:32,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:32,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:52:32,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597701631] [2024-12-02 06:52:32,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:32,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:52:32,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:32,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:52:32,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:52:32,935 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:33,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:33,385 INFO L93 Difference]: Finished difference Result 782 states and 1124 transitions. [2024-12-02 06:52:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:33,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:33,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:33,389 INFO L225 Difference]: With dead ends: 782 [2024-12-02 06:52:33,390 INFO L226 Difference]: Without dead ends: 582 [2024-12-02 06:52:33,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:52:33,391 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 325 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:33,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1336 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:52:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-12-02 06:52:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 249. [2024-12-02 06:52:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 221 states have (on average 1.3936651583710407) internal successors, (308), 222 states have internal predecessors, (308), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 358 transitions. [2024-12-02 06:52:33,425 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 358 transitions. Word has length 180 [2024-12-02 06:52:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:33,425 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 358 transitions. [2024-12-02 06:52:33,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 358 transitions. [2024-12-02 06:52:33,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:33,428 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:33,428 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:33,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:52:33,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:33,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2060488276, now seen corresponding path program 1 times [2024-12-02 06:52:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:33,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740331785] [2024-12-02 06:52:33,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:33,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:52:34,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:34,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740331785] [2024-12-02 06:52:34,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740331785] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:34,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462819480] [2024-12-02 06:52:34,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:34,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:34,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:34,549 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:34,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:52:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:34,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 06:52:34,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:34,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-12-02 06:52:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:34,959 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:34,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462819480] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:34,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:34,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-12-02 06:52:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334036304] [2024-12-02 06:52:34,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:34,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:52:34,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:34,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:52:34,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:52:34,961 INFO L87 Difference]: Start difference. First operand 249 states and 358 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:35,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:35,167 INFO L93 Difference]: Finished difference Result 737 states and 1062 transitions. [2024-12-02 06:52:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:35,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:35,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:35,171 INFO L225 Difference]: With dead ends: 737 [2024-12-02 06:52:35,171 INFO L226 Difference]: Without dead ends: 491 [2024-12-02 06:52:35,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-12-02 06:52:35,172 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 177 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:35,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1843 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-12-02 06:52:35,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 263. [2024-12-02 06:52:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 235 states have (on average 1.3787234042553191) internal successors, (324), 236 states have internal predecessors, (324), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 374 transitions. [2024-12-02 06:52:35,193 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 374 transitions. Word has length 180 [2024-12-02 06:52:35,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:35,194 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 374 transitions. [2024-12-02 06:52:35,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:35,194 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 374 transitions. [2024-12-02 06:52:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:35,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:35,196 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:35,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:52:35,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:35,396 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:35,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash -395762216, now seen corresponding path program 1 times [2024-12-02 06:52:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:35,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672240416] [2024-12-02 06:52:35,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:52:36,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:36,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672240416] [2024-12-02 06:52:36,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672240416] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:36,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365180568] [2024-12-02 06:52:36,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:36,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:36,153 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:36,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:52:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:36,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 06:52:36,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:36,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:52:36,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-12-02 06:52:36,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-12-02 06:52:36,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-12-02 06:52:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:36,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:36,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365180568] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:36,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:36,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2024-12-02 06:52:36,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329685790] [2024-12-02 06:52:36,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:36,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:52:36,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:36,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:52:36,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:52:36,641 INFO L87 Difference]: Start difference. First operand 263 states and 374 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:37,214 INFO L93 Difference]: Finished difference Result 870 states and 1238 transitions. [2024-12-02 06:52:37,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:52:37,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:37,218 INFO L225 Difference]: With dead ends: 870 [2024-12-02 06:52:37,218 INFO L226 Difference]: Without dead ends: 610 [2024-12-02 06:52:37,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:52:37,220 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 413 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:37,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 2025 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:52:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-12-02 06:52:37,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 271. [2024-12-02 06:52:37,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 243 states have (on average 1.374485596707819) internal successors, (334), 244 states have internal predecessors, (334), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 384 transitions. [2024-12-02 06:52:37,258 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 384 transitions. Word has length 180 [2024-12-02 06:52:37,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:37,258 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 384 transitions. [2024-12-02 06:52:37,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 384 transitions. [2024-12-02 06:52:37,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:37,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:37,261 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:37,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:52:37,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 06:52:37,462 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:37,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:37,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1416830570, now seen corresponding path program 1 times [2024-12-02 06:52:37,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:37,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880526204] [2024-12-02 06:52:37,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:37,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:37,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:37,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880526204] [2024-12-02 06:52:37,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880526204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:37,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:37,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:52:37,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444083292] [2024-12-02 06:52:37,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:37,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:52:37,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:37,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:52:37,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:52:37,891 INFO L87 Difference]: Start difference. First operand 271 states and 384 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:38,301 INFO L93 Difference]: Finished difference Result 872 states and 1238 transitions. [2024-12-02 06:52:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:38,304 INFO L225 Difference]: With dead ends: 872 [2024-12-02 06:52:38,305 INFO L226 Difference]: Without dead ends: 604 [2024-12-02 06:52:38,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:52:38,306 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 325 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:38,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1712 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:52:38,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-12-02 06:52:38,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 271. [2024-12-02 06:52:38,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 243 states have (on average 1.3662551440329218) internal successors, (332), 244 states have internal predecessors, (332), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:38,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 382 transitions. [2024-12-02 06:52:38,325 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 382 transitions. Word has length 180 [2024-12-02 06:52:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:38,326 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 382 transitions. [2024-12-02 06:52:38,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:38,326 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 382 transitions. [2024-12-02 06:52:38,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:38,327 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:38,327 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:38,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:52:38,327 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:38,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:38,328 INFO L85 PathProgramCache]: Analyzing trace with hash 576235292, now seen corresponding path program 1 times [2024-12-02 06:52:38,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:38,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460647683] [2024-12-02 06:52:38,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:38,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:38,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:38,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460647683] [2024-12-02 06:52:38,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460647683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:38,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:38,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:52:38,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727653616] [2024-12-02 06:52:38,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:38,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:52:38,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:38,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:52:38,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:38,661 INFO L87 Difference]: Start difference. First operand 271 states and 382 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:38,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:38,774 INFO L93 Difference]: Finished difference Result 701 states and 992 transitions. [2024-12-02 06:52:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:52:38,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:38,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:38,777 INFO L225 Difference]: With dead ends: 701 [2024-12-02 06:52:38,778 INFO L226 Difference]: Without dead ends: 433 [2024-12-02 06:52:38,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:38,779 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 148 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:38,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1241 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-12-02 06:52:38,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 279. [2024-12-02 06:52:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 251 states have (on average 1.3705179282868525) internal successors, (344), 252 states have internal predecessors, (344), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:38,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 394 transitions. [2024-12-02 06:52:38,799 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 394 transitions. Word has length 180 [2024-12-02 06:52:38,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:38,800 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 394 transitions. [2024-12-02 06:52:38,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:38,800 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 394 transitions. [2024-12-02 06:52:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:38,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:38,802 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:38,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:52:38,802 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:38,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash -444833062, now seen corresponding path program 1 times [2024-12-02 06:52:38,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:38,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795990149] [2024-12-02 06:52:38,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:38,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:39,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:39,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795990149] [2024-12-02 06:52:39,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795990149] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:39,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:39,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:52:39,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901908042] [2024-12-02 06:52:39,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:39,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:52:39,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:39,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:52:39,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:39,018 INFO L87 Difference]: Start difference. First operand 279 states and 394 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:39,186 INFO L93 Difference]: Finished difference Result 831 states and 1172 transitions. [2024-12-02 06:52:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:52:39,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:39,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:39,189 INFO L225 Difference]: With dead ends: 831 [2024-12-02 06:52:39,189 INFO L226 Difference]: Without dead ends: 555 [2024-12-02 06:52:39,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:52:39,190 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 166 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:39,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1098 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:39,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-12-02 06:52:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 339. [2024-12-02 06:52:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 311 states have (on average 1.3954983922829582) internal successors, (434), 312 states have internal predecessors, (434), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 484 transitions. [2024-12-02 06:52:39,212 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 484 transitions. Word has length 180 [2024-12-02 06:52:39,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:39,213 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 484 transitions. [2024-12-02 06:52:39,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,213 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 484 transitions. [2024-12-02 06:52:39,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:39,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:39,214 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:39,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:52:39,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:39,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:39,215 INFO L85 PathProgramCache]: Analyzing trace with hash 898125811, now seen corresponding path program 1 times [2024-12-02 06:52:39,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:39,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829643089] [2024-12-02 06:52:39,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:39,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:39,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829643089] [2024-12-02 06:52:39,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829643089] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:39,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:39,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012214790] [2024-12-02 06:52:39,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:39,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:39,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:39,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:39,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:39,359 INFO L87 Difference]: Start difference. First operand 339 states and 484 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:39,551 INFO L93 Difference]: Finished difference Result 925 states and 1332 transitions. [2024-12-02 06:52:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:39,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:39,554 INFO L225 Difference]: With dead ends: 925 [2024-12-02 06:52:39,554 INFO L226 Difference]: Without dead ends: 589 [2024-12-02 06:52:39,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:39,555 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 167 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:39,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 988 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-12-02 06:52:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 339. [2024-12-02 06:52:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 311 states have (on average 1.3762057877813505) internal successors, (428), 312 states have internal predecessors, (428), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2024-12-02 06:52:39,578 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 180 [2024-12-02 06:52:39,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:39,578 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2024-12-02 06:52:39,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2024-12-02 06:52:39,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:52:39,579 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:39,580 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:39,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:52:39,580 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:39,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:39,580 INFO L85 PathProgramCache]: Analyzing trace with hash 256766812, now seen corresponding path program 1 times [2024-12-02 06:52:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:39,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973962605] [2024-12-02 06:52:39,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:39,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:39,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:39,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973962605] [2024-12-02 06:52:39,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973962605] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:39,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:39,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:52:39,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845964161] [2024-12-02 06:52:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:39,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:52:39,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:39,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:52:39,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:39,660 INFO L87 Difference]: Start difference. First operand 339 states and 478 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:39,694 INFO L93 Difference]: Finished difference Result 641 states and 902 transitions. [2024-12-02 06:52:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:52:39,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-12-02 06:52:39,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:39,697 INFO L225 Difference]: With dead ends: 641 [2024-12-02 06:52:39,697 INFO L226 Difference]: Without dead ends: 305 [2024-12-02 06:52:39,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:39,698 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 1 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:39,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 534 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-12-02 06:52:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-12-02 06:52:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 277 states have (on average 1.3537906137184115) internal successors, (375), 278 states have internal predecessors, (375), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 425 transitions. [2024-12-02 06:52:39,716 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 425 transitions. Word has length 180 [2024-12-02 06:52:39,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:39,716 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 425 transitions. [2024-12-02 06:52:39,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 425 transitions. [2024-12-02 06:52:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 06:52:39,718 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:39,718 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:39,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:52:39,718 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:39,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1900634344, now seen corresponding path program 1 times [2024-12-02 06:52:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:39,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849294481] [2024-12-02 06:52:39,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:39,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:39,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849294481] [2024-12-02 06:52:39,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849294481] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:39,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:39,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:39,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070134893] [2024-12-02 06:52:39,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:39,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:39,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:39,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:39,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:39,827 INFO L87 Difference]: Start difference. First operand 305 states and 425 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:39,878 INFO L93 Difference]: Finished difference Result 613 states and 855 transitions. [2024-12-02 06:52:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:39,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-12-02 06:52:39,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:39,881 INFO L225 Difference]: With dead ends: 613 [2024-12-02 06:52:39,881 INFO L226 Difference]: Without dead ends: 311 [2024-12-02 06:52:39,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 06:52:39,882 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 1 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 707 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 06:52:39,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 707 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:39,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-12-02 06:52:39,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-12-02 06:52:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 283 states have (on average 1.3462897526501767) internal successors, (381), 284 states have internal predecessors, (381), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 431 transitions. [2024-12-02 06:52:39,915 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 431 transitions. Word has length 181 [2024-12-02 06:52:39,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:39,915 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 431 transitions. [2024-12-02 06:52:39,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:39,915 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 431 transitions. [2024-12-02 06:52:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 06:52:39,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:39,918 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:39,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:52:39,918 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:39,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:39,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1973020902, now seen corresponding path program 1 times [2024-12-02 06:52:39,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:39,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518354720] [2024-12-02 06:52:39,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:39,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:40,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:40,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518354720] [2024-12-02 06:52:40,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518354720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:40,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:40,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:52:40,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647272121] [2024-12-02 06:52:40,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:40,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:52:40,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:40,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:52:40,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:40,450 INFO L87 Difference]: Start difference. First operand 311 states and 431 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:40,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:40,731 INFO L93 Difference]: Finished difference Result 789 states and 1094 transitions. [2024-12-02 06:52:40,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:52:40,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-12-02 06:52:40,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:40,733 INFO L225 Difference]: With dead ends: 789 [2024-12-02 06:52:40,733 INFO L226 Difference]: Without dead ends: 481 [2024-12-02 06:52:40,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:52:40,734 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 322 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:40,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 996 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:52:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-12-02 06:52:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 308. [2024-12-02 06:52:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 280 states have (on average 1.3464285714285715) internal successors, (377), 281 states have internal predecessors, (377), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:40,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 427 transitions. [2024-12-02 06:52:40,754 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 427 transitions. Word has length 181 [2024-12-02 06:52:40,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:40,755 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 427 transitions. [2024-12-02 06:52:40,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:40,755 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 427 transitions. [2024-12-02 06:52:40,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 06:52:40,756 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:40,756 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:40,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:52:40,756 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:40,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1654071006, now seen corresponding path program 1 times [2024-12-02 06:52:40,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:40,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134666352] [2024-12-02 06:52:40,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:41,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:41,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:41,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134666352] [2024-12-02 06:52:41,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134666352] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:41,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:41,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:52:41,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420742403] [2024-12-02 06:52:41,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:41,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:52:41,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:41,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:52:41,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:41,081 INFO L87 Difference]: Start difference. First operand 308 states and 427 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:41,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:41,335 INFO L93 Difference]: Finished difference Result 737 states and 1023 transitions. [2024-12-02 06:52:41,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:52:41,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-12-02 06:52:41,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:41,338 INFO L225 Difference]: With dead ends: 737 [2024-12-02 06:52:41,338 INFO L226 Difference]: Without dead ends: 432 [2024-12-02 06:52:41,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:52:41,339 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 322 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:41,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 640 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:52:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-12-02 06:52:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 308. [2024-12-02 06:52:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 281 states have internal predecessors, (376), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 426 transitions. [2024-12-02 06:52:41,368 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 426 transitions. Word has length 181 [2024-12-02 06:52:41,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:41,369 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 426 transitions. [2024-12-02 06:52:41,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:41,369 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 426 transitions. [2024-12-02 06:52:41,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 06:52:41,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:41,370 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:41,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:52:41,371 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:41,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:41,371 INFO L85 PathProgramCache]: Analyzing trace with hash 633002652, now seen corresponding path program 1 times [2024-12-02 06:52:41,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:41,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219655920] [2024-12-02 06:52:41,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:52:41,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219655920] [2024-12-02 06:52:41,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219655920] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200596683] [2024-12-02 06:52:41,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:41,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:41,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:41,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:41,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:52:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:42,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 06:52:42,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:42,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:52:42,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:52:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:42,372 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:42,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200596683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:42,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:42,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-12-02 06:52:42,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061152640] [2024-12-02 06:52:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:42,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:52:42,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:42,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:52:42,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:52:42,373 INFO L87 Difference]: Start difference. First operand 308 states and 426 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:42,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:42,727 INFO L93 Difference]: Finished difference Result 932 states and 1297 transitions. [2024-12-02 06:52:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:52:42,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-12-02 06:52:42,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:42,731 INFO L225 Difference]: With dead ends: 932 [2024-12-02 06:52:42,731 INFO L226 Difference]: Without dead ends: 627 [2024-12-02 06:52:42,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:52:42,732 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 332 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:42,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 2556 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:52:42,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-12-02 06:52:42,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 312. [2024-12-02 06:52:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 284 states have (on average 1.341549295774648) internal successors, (381), 285 states have internal predecessors, (381), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 431 transitions. [2024-12-02 06:52:42,780 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 431 transitions. Word has length 181 [2024-12-02 06:52:42,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:42,780 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 431 transitions. [2024-12-02 06:52:42,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:42,781 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 431 transitions. [2024-12-02 06:52:42,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 06:52:42,783 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:42,783 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:42,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:52:42,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 06:52:42,983 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:42,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2112639665, now seen corresponding path program 1 times [2024-12-02 06:52:42,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:42,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476126145] [2024-12-02 06:52:42,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:42,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:43,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:43,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476126145] [2024-12-02 06:52:43,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476126145] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:43,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:43,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:52:43,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301091401] [2024-12-02 06:52:43,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:43,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:52:43,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:43,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:52:43,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:52:43,097 INFO L87 Difference]: Start difference. First operand 312 states and 431 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:43,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:43,124 INFO L93 Difference]: Finished difference Result 622 states and 861 transitions. [2024-12-02 06:52:43,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:52:43,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-12-02 06:52:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:43,126 INFO L225 Difference]: With dead ends: 622 [2024-12-02 06:52:43,126 INFO L226 Difference]: Without dead ends: 313 [2024-12-02 06:52:43,127 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 06:52:43,127 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:43,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 360 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-12-02 06:52:43,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-12-02 06:52:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 285 states have (on average 1.3403508771929824) internal successors, (382), 286 states have internal predecessors, (382), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 432 transitions. [2024-12-02 06:52:43,157 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 432 transitions. Word has length 182 [2024-12-02 06:52:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:43,157 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 432 transitions. [2024-12-02 06:52:43,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 432 transitions. [2024-12-02 06:52:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 06:52:43,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:43,159 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:43,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:52:43,159 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:43,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1083280367, now seen corresponding path program 1 times [2024-12-02 06:52:43,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:43,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146398714] [2024-12-02 06:52:43,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:43,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:43,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:43,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146398714] [2024-12-02 06:52:43,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146398714] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:43,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:43,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:52:43,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598148953] [2024-12-02 06:52:43,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:43,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:52:43,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:43,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:52:43,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:43,328 INFO L87 Difference]: Start difference. First operand 313 states and 432 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:43,371 INFO L93 Difference]: Finished difference Result 540 states and 744 transitions. [2024-12-02 06:52:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:52:43,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-12-02 06:52:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:43,374 INFO L225 Difference]: With dead ends: 540 [2024-12-02 06:52:43,374 INFO L226 Difference]: Without dead ends: 230 [2024-12-02 06:52:43,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:43,375 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:43,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 513 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:43,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-12-02 06:52:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2024-12-02 06:52:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 201 states have (on average 1.308457711442786) internal successors, (263), 202 states have internal predecessors, (263), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 313 transitions. [2024-12-02 06:52:43,406 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 313 transitions. Word has length 182 [2024-12-02 06:52:43,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:43,406 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 313 transitions. [2024-12-02 06:52:43,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:43,407 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 313 transitions. [2024-12-02 06:52:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-12-02 06:52:43,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:43,408 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:43,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:52:43,408 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:43,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash -621272487, now seen corresponding path program 1 times [2024-12-02 06:52:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:43,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376678796] [2024-12-02 06:52:43,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:43,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:43,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:43,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:43,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376678796] [2024-12-02 06:52:43,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376678796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:43,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:43,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:52:43,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590579697] [2024-12-02 06:52:43,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:43,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:52:43,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:43,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:52:43,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:52:43,869 INFO L87 Difference]: Start difference. First operand 229 states and 313 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:44,037 INFO L93 Difference]: Finished difference Result 517 states and 710 transitions. [2024-12-02 06:52:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:44,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 183 [2024-12-02 06:52:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:44,039 INFO L225 Difference]: With dead ends: 517 [2024-12-02 06:52:44,039 INFO L226 Difference]: Without dead ends: 291 [2024-12-02 06:52:44,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:52:44,040 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 164 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:44,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1502 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:44,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-12-02 06:52:44,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 235. [2024-12-02 06:52:44,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 207 states have (on average 1.2995169082125604) internal successors, (269), 208 states have internal predecessors, (269), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 319 transitions. [2024-12-02 06:52:44,071 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 319 transitions. Word has length 183 [2024-12-02 06:52:44,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:44,071 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 319 transitions. [2024-12-02 06:52:44,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 319 transitions. [2024-12-02 06:52:44,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 06:52:44,073 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:44,073 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:44,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:52:44,073 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:44,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash -67911810, now seen corresponding path program 1 times [2024-12-02 06:52:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:44,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360305977] [2024-12-02 06:52:44,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:44,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:44,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:44,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360305977] [2024-12-02 06:52:44,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360305977] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:44,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:44,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:52:44,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408095874] [2024-12-02 06:52:44,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:44,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:52:44,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:44,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:52:44,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:52:44,169 INFO L87 Difference]: Start difference. First operand 235 states and 319 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:44,200 INFO L93 Difference]: Finished difference Result 469 states and 639 transitions. [2024-12-02 06:52:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:52:44,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-12-02 06:52:44,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:44,202 INFO L225 Difference]: With dead ends: 469 [2024-12-02 06:52:44,202 INFO L226 Difference]: Without dead ends: 237 [2024-12-02 06:52:44,203 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 06:52:44,203 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:44,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:44,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-12-02 06:52:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-12-02 06:52:44,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 209 states have (on average 1.2966507177033493) internal successors, (271), 210 states have internal predecessors, (271), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:44,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 321 transitions. [2024-12-02 06:52:44,231 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 321 transitions. Word has length 185 [2024-12-02 06:52:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:44,232 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 321 transitions. [2024-12-02 06:52:44,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 321 transitions. [2024-12-02 06:52:44,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 06:52:44,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:44,233 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:44,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:52:44,233 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:44,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:44,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1656259712, now seen corresponding path program 1 times [2024-12-02 06:52:44,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:44,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834801619] [2024-12-02 06:52:44,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:44,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:44,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:44,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:44,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834801619] [2024-12-02 06:52:44,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834801619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:44,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:44,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:44,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441136164] [2024-12-02 06:52:44,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:44,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:44,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:44,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:44,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:44,455 INFO L87 Difference]: Start difference. First operand 237 states and 321 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:44,525 INFO L93 Difference]: Finished difference Result 539 states and 732 transitions. [2024-12-02 06:52:44,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:44,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-12-02 06:52:44,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:44,527 INFO L225 Difference]: With dead ends: 539 [2024-12-02 06:52:44,528 INFO L226 Difference]: Without dead ends: 305 [2024-12-02 06:52:44,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:44,528 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 51 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:44,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 712 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-12-02 06:52:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 237. [2024-12-02 06:52:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 209 states have (on average 1.2870813397129186) internal successors, (269), 210 states have internal predecessors, (269), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 319 transitions. [2024-12-02 06:52:44,556 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 319 transitions. Word has length 185 [2024-12-02 06:52:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:44,557 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 319 transitions. [2024-12-02 06:52:44,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 319 transitions. [2024-12-02 06:52:44,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 06:52:44,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:44,558 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:44,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 06:52:44,558 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:44,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:44,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1358843906, now seen corresponding path program 1 times [2024-12-02 06:52:44,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:44,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662277958] [2024-12-02 06:52:44,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:44,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:44,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:44,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662277958] [2024-12-02 06:52:44,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662277958] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:44,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:44,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:44,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348616432] [2024-12-02 06:52:44,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:44,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:44,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:44,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:44,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:44,841 INFO L87 Difference]: Start difference. First operand 237 states and 319 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:44,908 INFO L93 Difference]: Finished difference Result 634 states and 852 transitions. [2024-12-02 06:52:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:44,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-12-02 06:52:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:44,910 INFO L225 Difference]: With dead ends: 634 [2024-12-02 06:52:44,910 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 06:52:44,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:44,912 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 73 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:44,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 755 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:44,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 06:52:44,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 330. [2024-12-02 06:52:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 302 states have (on average 1.2880794701986755) internal successors, (389), 303 states have internal predecessors, (389), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 439 transitions. [2024-12-02 06:52:44,942 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 439 transitions. Word has length 185 [2024-12-02 06:52:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:44,942 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 439 transitions. [2024-12-02 06:52:44,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 439 transitions. [2024-12-02 06:52:44,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 06:52:44,944 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:44,944 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:44,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:52:44,944 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:44,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:44,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1782490628, now seen corresponding path program 1 times [2024-12-02 06:52:44,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:44,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275104461] [2024-12-02 06:52:44,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:44,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:45,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:45,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275104461] [2024-12-02 06:52:45,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275104461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:45,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:45,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:52:45,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264822664] [2024-12-02 06:52:45,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:45,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:52:45,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:45,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:52:45,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:45,161 INFO L87 Difference]: Start difference. First operand 330 states and 439 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:45,207 INFO L93 Difference]: Finished difference Result 647 states and 863 transitions. [2024-12-02 06:52:45,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:52:45,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-12-02 06:52:45,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:45,209 INFO L225 Difference]: With dead ends: 647 [2024-12-02 06:52:45,209 INFO L226 Difference]: Without dead ends: 320 [2024-12-02 06:52:45,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:45,211 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:45,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:45,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-12-02 06:52:45,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 318. [2024-12-02 06:52:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 290 states have (on average 1.2862068965517242) internal successors, (373), 291 states have internal predecessors, (373), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:45,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2024-12-02 06:52:45,238 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 185 [2024-12-02 06:52:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:45,239 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2024-12-02 06:52:45,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:45,239 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2024-12-02 06:52:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 06:52:45,240 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:45,240 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:45,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:52:45,241 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:45,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:45,241 INFO L85 PathProgramCache]: Analyzing trace with hash -730884783, now seen corresponding path program 1 times [2024-12-02 06:52:45,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:45,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077728502] [2024-12-02 06:52:45,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:45,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:45,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:45,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077728502] [2024-12-02 06:52:45,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077728502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:45,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:45,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:52:45,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538548378] [2024-12-02 06:52:45,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:45,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:52:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:45,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:52:45,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:45,769 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:45,930 INFO L93 Difference]: Finished difference Result 791 states and 1047 transitions. [2024-12-02 06:52:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:45,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-12-02 06:52:45,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:45,932 INFO L225 Difference]: With dead ends: 791 [2024-12-02 06:52:45,932 INFO L226 Difference]: Without dead ends: 476 [2024-12-02 06:52:45,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:52:45,933 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 157 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:45,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1913 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:45,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-12-02 06:52:45,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 367. [2024-12-02 06:52:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 339 states have (on average 1.2625368731563422) internal successors, (428), 340 states have internal predecessors, (428), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:45,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 478 transitions. [2024-12-02 06:52:45,956 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 478 transitions. Word has length 187 [2024-12-02 06:52:45,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:45,956 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 478 transitions. [2024-12-02 06:52:45,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:45,956 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 478 transitions. [2024-12-02 06:52:45,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 06:52:45,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:45,958 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:45,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:52:45,958 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:45,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:45,958 INFO L85 PathProgramCache]: Analyzing trace with hash -472719345, now seen corresponding path program 1 times [2024-12-02 06:52:45,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:45,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422530246] [2024-12-02 06:52:45,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:45,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:46,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:46,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422530246] [2024-12-02 06:52:46,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422530246] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:46,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:46,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:52:46,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913588675] [2024-12-02 06:52:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:46,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:52:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:46,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:52:46,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:46,034 INFO L87 Difference]: Start difference. First operand 367 states and 478 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:46,067 INFO L93 Difference]: Finished difference Result 738 states and 963 transitions. [2024-12-02 06:52:46,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:52:46,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-12-02 06:52:46,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:46,069 INFO L225 Difference]: With dead ends: 738 [2024-12-02 06:52:46,069 INFO L226 Difference]: Without dead ends: 374 [2024-12-02 06:52:46,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:46,070 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:46,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 502 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:46,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-12-02 06:52:46,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 373. [2024-12-02 06:52:46,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 345 states have (on average 1.2579710144927536) internal successors, (434), 346 states have internal predecessors, (434), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 06:52:46,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 484 transitions. [2024-12-02 06:52:46,091 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 484 transitions. Word has length 187 [2024-12-02 06:52:46,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:46,091 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 484 transitions. [2024-12-02 06:52:46,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 484 transitions. [2024-12-02 06:52:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-12-02 06:52:46,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:46,092 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:46,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:52:46,092 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:46,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:46,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1725337417, now seen corresponding path program 1 times [2024-12-02 06:52:46,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:46,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017842898] [2024-12-02 06:52:46,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:46,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:46,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017842898] [2024-12-02 06:52:46,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017842898] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:46,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:46,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549547207] [2024-12-02 06:52:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:46,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:46,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:46,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:46,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:46,277 INFO L87 Difference]: Start difference. First operand 373 states and 484 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:46,347 INFO L93 Difference]: Finished difference Result 746 states and 966 transitions. [2024-12-02 06:52:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:46,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 188 [2024-12-02 06:52:46,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:46,348 INFO L225 Difference]: With dead ends: 746 [2024-12-02 06:52:46,348 INFO L226 Difference]: Without dead ends: 376 [2024-12-02 06:52:46,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:46,349 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 77 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:46,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 794 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:46,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-12-02 06:52:46,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 334. [2024-12-02 06:52:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 308 states have (on average 1.2435064935064934) internal successors, (383), 308 states have internal predecessors, (383), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 06:52:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 429 transitions. [2024-12-02 06:52:46,368 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 429 transitions. Word has length 188 [2024-12-02 06:52:46,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:46,369 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 429 transitions. [2024-12-02 06:52:46,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,369 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 429 transitions. [2024-12-02 06:52:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-12-02 06:52:46,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:46,371 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:46,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:52:46,371 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:46,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:46,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1831826601, now seen corresponding path program 1 times [2024-12-02 06:52:46,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:46,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548898883] [2024-12-02 06:52:46,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:46,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:46,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:46,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548898883] [2024-12-02 06:52:46,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548898883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:46,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:46,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:46,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835222017] [2024-12-02 06:52:46,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:46,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:46,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:46,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:46,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:46,468 INFO L87 Difference]: Start difference. First operand 334 states and 429 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:46,499 INFO L93 Difference]: Finished difference Result 672 states and 864 transitions. [2024-12-02 06:52:46,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:46,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 189 [2024-12-02 06:52:46,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:46,502 INFO L225 Difference]: With dead ends: 672 [2024-12-02 06:52:46,502 INFO L226 Difference]: Without dead ends: 341 [2024-12-02 06:52:46,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 06:52:46,502 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:46,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 664 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:46,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-12-02 06:52:46,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2024-12-02 06:52:46,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 312 states have (on average 1.2403846153846154) internal successors, (387), 312 states have internal predecessors, (387), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 06:52:46,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 433 transitions. [2024-12-02 06:52:46,522 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 433 transitions. Word has length 189 [2024-12-02 06:52:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:46,522 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 433 transitions. [2024-12-02 06:52:46,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 433 transitions. [2024-12-02 06:52:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-12-02 06:52:46,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:46,524 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:46,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 06:52:46,524 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:46,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash 551962923, now seen corresponding path program 1 times [2024-12-02 06:52:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:46,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604080094] [2024-12-02 06:52:46,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:46,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:46,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:46,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604080094] [2024-12-02 06:52:46,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604080094] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:46,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:46,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:46,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176209649] [2024-12-02 06:52:46,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:46,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:46,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:46,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:46,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:46,751 INFO L87 Difference]: Start difference. First operand 338 states and 433 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:46,857 INFO L93 Difference]: Finished difference Result 710 states and 909 transitions. [2024-12-02 06:52:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 189 [2024-12-02 06:52:46,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:46,859 INFO L225 Difference]: With dead ends: 710 [2024-12-02 06:52:46,859 INFO L226 Difference]: Without dead ends: 375 [2024-12-02 06:52:46,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:46,860 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 65 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:46,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 718 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-12-02 06:52:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 338. [2024-12-02 06:52:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 312 states have (on average 1.2371794871794872) internal successors, (386), 312 states have internal predecessors, (386), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 06:52:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 432 transitions. [2024-12-02 06:52:46,878 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 432 transitions. Word has length 189 [2024-12-02 06:52:46,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:46,878 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 432 transitions. [2024-12-02 06:52:46,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 432 transitions. [2024-12-02 06:52:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 06:52:46,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:46,880 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:46,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 06:52:46,880 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:46,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:46,880 INFO L85 PathProgramCache]: Analyzing trace with hash 346704995, now seen corresponding path program 1 times [2024-12-02 06:52:46,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:46,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161119987] [2024-12-02 06:52:46,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:46,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:47,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:47,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161119987] [2024-12-02 06:52:47,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161119987] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:47,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:47,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:47,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545229389] [2024-12-02 06:52:47,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:47,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:47,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:47,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:47,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:47,084 INFO L87 Difference]: Start difference. First operand 338 states and 432 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:47,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:47,168 INFO L93 Difference]: Finished difference Result 787 states and 1003 transitions. [2024-12-02 06:52:47,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:52:47,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-12-02 06:52:47,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:47,171 INFO L225 Difference]: With dead ends: 787 [2024-12-02 06:52:47,171 INFO L226 Difference]: Without dead ends: 452 [2024-12-02 06:52:47,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:47,172 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 137 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:47,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 667 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:47,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-12-02 06:52:47,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 449. [2024-12-02 06:52:47,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 417 states have (on average 1.2398081534772183) internal successors, (517), 418 states have internal predecessors, (517), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 06:52:47,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 571 transitions. [2024-12-02 06:52:47,208 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 571 transitions. Word has length 190 [2024-12-02 06:52:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:47,209 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 571 transitions. [2024-12-02 06:52:47,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 571 transitions. [2024-12-02 06:52:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 06:52:47,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:47,210 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:47,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 06:52:47,210 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:47,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:47,211 INFO L85 PathProgramCache]: Analyzing trace with hash 594851489, now seen corresponding path program 1 times [2024-12-02 06:52:47,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:47,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227004756] [2024-12-02 06:52:47,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:47,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:47,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227004756] [2024-12-02 06:52:47,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227004756] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:47,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:47,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:52:47,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610481438] [2024-12-02 06:52:47,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:47,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:52:47,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:47,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:52:47,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:47,650 INFO L87 Difference]: Start difference. First operand 449 states and 571 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:47,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:47,849 INFO L93 Difference]: Finished difference Result 945 states and 1201 transitions. [2024-12-02 06:52:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:52:47,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-12-02 06:52:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:47,851 INFO L225 Difference]: With dead ends: 945 [2024-12-02 06:52:47,851 INFO L226 Difference]: Without dead ends: 499 [2024-12-02 06:52:47,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:52:47,853 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 277 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:47,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1501 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-12-02 06:52:47,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 492. [2024-12-02 06:52:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 452 states have (on average 1.238938053097345) internal successors, (560), 454 states have internal predecessors, (560), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 06:52:47,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 626 transitions. [2024-12-02 06:52:47,901 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 626 transitions. Word has length 190 [2024-12-02 06:52:47,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:47,902 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 626 transitions. [2024-12-02 06:52:47,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 626 transitions. [2024-12-02 06:52:47,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 06:52:47,903 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:47,903 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:47,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 06:52:47,903 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:47,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:47,904 INFO L85 PathProgramCache]: Analyzing trace with hash -228817437, now seen corresponding path program 1 times [2024-12-02 06:52:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148326782] [2024-12-02 06:52:47,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:48,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148326782] [2024-12-02 06:52:48,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148326782] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:48,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:48,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:48,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817113719] [2024-12-02 06:52:48,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:48,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:48,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:48,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:48,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:48,107 INFO L87 Difference]: Start difference. First operand 492 states and 626 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:48,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:48,197 INFO L93 Difference]: Finished difference Result 1022 states and 1299 transitions. [2024-12-02 06:52:48,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:48,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-12-02 06:52:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:48,199 INFO L225 Difference]: With dead ends: 1022 [2024-12-02 06:52:48,199 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 06:52:48,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:48,200 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 80 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:48,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 737 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 06:52:48,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 493. [2024-12-02 06:52:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 452 states have (on average 1.2345132743362832) internal successors, (558), 454 states have internal predecessors, (558), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 06:52:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 624 transitions. [2024-12-02 06:52:48,229 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 624 transitions. Word has length 190 [2024-12-02 06:52:48,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:48,230 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 624 transitions. [2024-12-02 06:52:48,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 624 transitions. [2024-12-02 06:52:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 06:52:48,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:48,231 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:48,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 06:52:48,231 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:48,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:48,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1508681115, now seen corresponding path program 1 times [2024-12-02 06:52:48,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:48,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709941810] [2024-12-02 06:52:48,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:48,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:48,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:48,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709941810] [2024-12-02 06:52:48,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709941810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:48,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:48,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:52:48,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087852972] [2024-12-02 06:52:48,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:48,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:52:48,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:48,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:52:48,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:48,540 INFO L87 Difference]: Start difference. First operand 493 states and 624 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:48,691 INFO L93 Difference]: Finished difference Result 1031 states and 1304 transitions. [2024-12-02 06:52:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:48,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-12-02 06:52:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:48,694 INFO L225 Difference]: With dead ends: 1031 [2024-12-02 06:52:48,694 INFO L226 Difference]: Without dead ends: 541 [2024-12-02 06:52:48,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:52:48,695 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 223 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:48,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 1303 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-12-02 06:52:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 493. [2024-12-02 06:52:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 452 states have (on average 1.2323008849557522) internal successors, (557), 454 states have internal predecessors, (557), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 06:52:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 623 transitions. [2024-12-02 06:52:48,747 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 623 transitions. Word has length 190 [2024-12-02 06:52:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:48,747 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 623 transitions. [2024-12-02 06:52:48,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 623 transitions. [2024-12-02 06:52:48,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 06:52:48,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:48,749 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:48,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 06:52:48,749 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:48,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:48,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1250515677, now seen corresponding path program 1 times [2024-12-02 06:52:48,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:48,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790936426] [2024-12-02 06:52:48,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:48,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:49,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:49,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790936426] [2024-12-02 06:52:49,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790936426] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:49,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:49,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:52:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741247887] [2024-12-02 06:52:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:49,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:52:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:49,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:52:49,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:52:49,568 INFO L87 Difference]: Start difference. First operand 493 states and 623 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:49,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:49,978 INFO L93 Difference]: Finished difference Result 1115 states and 1401 transitions. [2024-12-02 06:52:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:52:49,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-12-02 06:52:49,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:49,981 INFO L225 Difference]: With dead ends: 1115 [2024-12-02 06:52:49,981 INFO L226 Difference]: Without dead ends: 625 [2024-12-02 06:52:49,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:52:49,982 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 179 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:49,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1730 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:52:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-12-02 06:52:50,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 566. [2024-12-02 06:52:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 513 states have (on average 1.2241715399610136) internal successors, (628), 516 states have internal predecessors, (628), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 06:52:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 710 transitions. [2024-12-02 06:52:50,070 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 710 transitions. Word has length 190 [2024-12-02 06:52:50,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:50,070 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 710 transitions. [2024-12-02 06:52:50,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 710 transitions. [2024-12-02 06:52:50,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 06:52:50,072 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:50,072 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:50,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 06:52:50,073 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:50,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1619440157, now seen corresponding path program 1 times [2024-12-02 06:52:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:50,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058575006] [2024-12-02 06:52:50,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:50,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:50,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058575006] [2024-12-02 06:52:50,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058575006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:50,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:50,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:52:50,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048895612] [2024-12-02 06:52:50,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:50,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:52:50,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:50,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:52:50,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:52:50,838 INFO L87 Difference]: Start difference. First operand 566 states and 710 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:51,241 INFO L93 Difference]: Finished difference Result 1207 states and 1508 transitions. [2024-12-02 06:52:51,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:52:51,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 190 [2024-12-02 06:52:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:51,244 INFO L225 Difference]: With dead ends: 1207 [2024-12-02 06:52:51,244 INFO L226 Difference]: Without dead ends: 644 [2024-12-02 06:52:51,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:52:51,245 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 234 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:51,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1351 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:52:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-12-02 06:52:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 568. [2024-12-02 06:52:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 514 states have (on average 1.2237354085603114) internal successors, (629), 517 states have internal predecessors, (629), 41 states have call successors, (41), 12 states have call predecessors, (41), 12 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 06:52:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 711 transitions. [2024-12-02 06:52:51,300 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 711 transitions. Word has length 190 [2024-12-02 06:52:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:51,300 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 711 transitions. [2024-12-02 06:52:51,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 711 transitions. [2024-12-02 06:52:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 06:52:51,301 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:51,301 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:51,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 06:52:51,302 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:51,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:51,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2017948219, now seen corresponding path program 1 times [2024-12-02 06:52:51,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:51,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608931677] [2024-12-02 06:52:51,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:51,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:51,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:51,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608931677] [2024-12-02 06:52:51,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608931677] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:51,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:51,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:52:51,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426571103] [2024-12-02 06:52:51,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:51,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:52:51,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:51,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:52:51,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:51,713 INFO L87 Difference]: Start difference. First operand 568 states and 711 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:52:52,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:52,406 INFO L93 Difference]: Finished difference Result 1535 states and 1938 transitions. [2024-12-02 06:52:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:52:52,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 191 [2024-12-02 06:52:52,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:52,408 INFO L225 Difference]: With dead ends: 1535 [2024-12-02 06:52:52,408 INFO L226 Difference]: Without dead ends: 970 [2024-12-02 06:52:52,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:52:52,409 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 542 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:52,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1506 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:52:52,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-12-02 06:52:52,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 730. [2024-12-02 06:52:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 656 states have (on average 1.2057926829268293) internal successors, (791), 661 states have internal predecessors, (791), 55 states have call successors, (55), 18 states have call predecessors, (55), 18 states have return successors, (55), 50 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 06:52:52,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 901 transitions. [2024-12-02 06:52:52,468 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 901 transitions. Word has length 191 [2024-12-02 06:52:52,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:52,469 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 901 transitions. [2024-12-02 06:52:52,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:52:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 901 transitions. [2024-12-02 06:52:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 06:52:52,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:52,470 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:52,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 06:52:52,470 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:52,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash -196934681, now seen corresponding path program 1 times [2024-12-02 06:52:52,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:52,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969926106] [2024-12-02 06:52:52,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:52,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:52,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:52,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969926106] [2024-12-02 06:52:52,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969926106] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:52,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:52,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:52:52,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23665964] [2024-12-02 06:52:52,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:52,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:52:52,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:52,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:52:52,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:52,552 INFO L87 Difference]: Start difference. First operand 730 states and 901 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:52,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:52,624 INFO L93 Difference]: Finished difference Result 1475 states and 1823 transitions. [2024-12-02 06:52:52,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:52:52,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-12-02 06:52:52,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:52,628 INFO L225 Difference]: With dead ends: 1475 [2024-12-02 06:52:52,628 INFO L226 Difference]: Without dead ends: 748 [2024-12-02 06:52:52,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:52:52,628 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:52,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:52:52,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-12-02 06:52:52,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 742. [2024-12-02 06:52:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 668 states have (on average 1.2020958083832336) internal successors, (803), 673 states have internal predecessors, (803), 55 states have call successors, (55), 18 states have call predecessors, (55), 18 states have return successors, (55), 50 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 06:52:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 913 transitions. [2024-12-02 06:52:52,712 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 913 transitions. Word has length 191 [2024-12-02 06:52:52,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:52,712 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 913 transitions. [2024-12-02 06:52:52,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 913 transitions. [2024-12-02 06:52:52,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 06:52:52,713 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:52,713 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:52,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 06:52:52,713 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:52,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash -589961691, now seen corresponding path program 1 times [2024-12-02 06:52:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:52,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952486135] [2024-12-02 06:52:52,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:52,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:52,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:52,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:52,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952486135] [2024-12-02 06:52:52,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952486135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:52,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:52,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:52,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273325651] [2024-12-02 06:52:52,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:52,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:52,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:52,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:52,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:52,944 INFO L87 Difference]: Start difference. First operand 742 states and 913 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:53,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:53,143 INFO L93 Difference]: Finished difference Result 2140 states and 2625 transitions. [2024-12-02 06:52:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:53,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-12-02 06:52:53,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:53,148 INFO L225 Difference]: With dead ends: 2140 [2024-12-02 06:52:53,148 INFO L226 Difference]: Without dead ends: 1401 [2024-12-02 06:52:53,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:53,149 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 157 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:53,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 566 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:53,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-12-02 06:52:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1398. [2024-12-02 06:52:53,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1264 states have (on average 1.196993670886076) internal successors, (1513), 1275 states have internal predecessors, (1513), 97 states have call successors, (97), 36 states have call predecessors, (97), 36 states have return successors, (97), 86 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 06:52:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1707 transitions. [2024-12-02 06:52:53,290 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1707 transitions. Word has length 191 [2024-12-02 06:52:53,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:53,290 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 1707 transitions. [2024-12-02 06:52:53,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1707 transitions. [2024-12-02 06:52:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 06:52:53,292 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:53,292 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:53,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 06:52:53,293 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:53,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:53,293 INFO L85 PathProgramCache]: Analyzing trace with hash -455100119, now seen corresponding path program 1 times [2024-12-02 06:52:53,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:53,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379127770] [2024-12-02 06:52:53,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:53,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:53,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:53,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379127770] [2024-12-02 06:52:53,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379127770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:53,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:53,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:52:53,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530818765] [2024-12-02 06:52:53,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:53,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:52:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:53,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:52:53,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:53,895 INFO L87 Difference]: Start difference. First operand 1398 states and 1707 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:54,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:54,462 INFO L93 Difference]: Finished difference Result 4098 states and 4985 transitions. [2024-12-02 06:52:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:54,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-12-02 06:52:54,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:54,468 INFO L225 Difference]: With dead ends: 4098 [2024-12-02 06:52:54,468 INFO L226 Difference]: Without dead ends: 2703 [2024-12-02 06:52:54,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:52:54,470 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 167 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:54,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1377 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:52:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2024-12-02 06:52:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2670. [2024-12-02 06:52:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2412 states have (on average 1.1828358208955223) internal successors, (2853), 2435 states have internal predecessors, (2853), 185 states have call successors, (185), 72 states have call predecessors, (185), 72 states have return successors, (185), 162 states have call predecessors, (185), 185 states have call successors, (185) [2024-12-02 06:52:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3223 transitions. [2024-12-02 06:52:54,758 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3223 transitions. Word has length 191 [2024-12-02 06:52:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:54,758 INFO L471 AbstractCegarLoop]: Abstraction has 2670 states and 3223 transitions. [2024-12-02 06:52:54,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3223 transitions. [2024-12-02 06:52:54,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 06:52:54,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:54,760 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:54,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 06:52:54,761 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:54,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:54,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1484459417, now seen corresponding path program 1 times [2024-12-02 06:52:54,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:54,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797683841] [2024-12-02 06:52:54,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:54,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:54,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:54,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797683841] [2024-12-02 06:52:54,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797683841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:54,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:54,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:52:54,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199826038] [2024-12-02 06:52:54,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:54,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:52:54,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:54,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:52:54,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:52:54,986 INFO L87 Difference]: Start difference. First operand 2670 states and 3223 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:55,366 INFO L93 Difference]: Finished difference Result 6033 states and 7267 transitions. [2024-12-02 06:52:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:52:55,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-12-02 06:52:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:55,377 INFO L225 Difference]: With dead ends: 6033 [2024-12-02 06:52:55,377 INFO L226 Difference]: Without dead ends: 3366 [2024-12-02 06:52:55,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:52:55,379 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 231 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:55,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 982 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:55,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2024-12-02 06:52:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3339. [2024-12-02 06:52:55,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 3004 states have (on average 1.1774300932090547) internal successors, (3537), 3034 states have internal predecessors, (3537), 239 states have call successors, (239), 95 states have call predecessors, (239), 95 states have return successors, (239), 209 states have call predecessors, (239), 239 states have call successors, (239) [2024-12-02 06:52:55,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 4015 transitions. [2024-12-02 06:52:55,719 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 4015 transitions. Word has length 191 [2024-12-02 06:52:55,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:55,720 INFO L471 AbstractCegarLoop]: Abstraction has 3339 states and 4015 transitions. [2024-12-02 06:52:55,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 4015 transitions. [2024-12-02 06:52:55,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 06:52:55,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:55,723 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:55,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 06:52:55,724 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:55,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:55,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1877486427, now seen corresponding path program 1 times [2024-12-02 06:52:55,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:55,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540627890] [2024-12-02 06:52:55,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:55,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:56,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:56,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540627890] [2024-12-02 06:52:56,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540627890] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:56,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:56,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:52:56,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304981514] [2024-12-02 06:52:56,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:56,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:52:56,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:56,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:52:56,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:52:56,147 INFO L87 Difference]: Start difference. First operand 3339 states and 4015 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:56,690 INFO L93 Difference]: Finished difference Result 7405 states and 8914 transitions. [2024-12-02 06:52:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:52:56,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-12-02 06:52:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:56,703 INFO L225 Difference]: With dead ends: 7405 [2024-12-02 06:52:56,703 INFO L226 Difference]: Without dead ends: 4106 [2024-12-02 06:52:56,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:52:56,706 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 150 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:56,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 2597 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4106 states. [2024-12-02 06:52:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4106 to 3707. [2024-12-02 06:52:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3369 states have (on average 1.1656277827248442) internal successors, (3927), 3399 states have internal predecessors, (3927), 241 states have call successors, (241), 96 states have call predecessors, (241), 96 states have return successors, (241), 211 states have call predecessors, (241), 241 states have call successors, (241) [2024-12-02 06:52:57,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 4409 transitions. [2024-12-02 06:52:57,018 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 4409 transitions. Word has length 191 [2024-12-02 06:52:57,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:57,019 INFO L471 AbstractCegarLoop]: Abstraction has 3707 states and 4409 transitions. [2024-12-02 06:52:57,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:57,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 4409 transitions. [2024-12-02 06:52:57,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 06:52:57,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:57,021 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:57,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 06:52:57,021 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:57,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:57,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1438700581, now seen corresponding path program 1 times [2024-12-02 06:52:57,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:57,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398359385] [2024-12-02 06:52:57,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:57,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:57,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:57,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:57,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398359385] [2024-12-02 06:52:57,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398359385] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:57,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:57,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:52:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114512734] [2024-12-02 06:52:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:57,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:57,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:57,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:57,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:52:57,214 INFO L87 Difference]: Start difference. First operand 3707 states and 4409 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:57,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:57,651 INFO L93 Difference]: Finished difference Result 7346 states and 8721 transitions. [2024-12-02 06:52:57,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:57,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-12-02 06:52:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:57,659 INFO L225 Difference]: With dead ends: 7346 [2024-12-02 06:52:57,660 INFO L226 Difference]: Without dead ends: 3687 [2024-12-02 06:52:57,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:52:57,663 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 159 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:57,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 643 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:57,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2024-12-02 06:52:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3104. [2024-12-02 06:52:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 2901 states have (on average 1.1527059634608756) internal successors, (3344), 2918 states have internal predecessors, (3344), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-12-02 06:52:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 3634 transitions. [2024-12-02 06:52:57,874 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 3634 transitions. Word has length 191 [2024-12-02 06:52:57,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:57,874 INFO L471 AbstractCegarLoop]: Abstraction has 3104 states and 3634 transitions. [2024-12-02 06:52:57,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:52:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 3634 transitions. [2024-12-02 06:52:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-12-02 06:52:57,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:57,877 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:52:57,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 06:52:57,877 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:57,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:57,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1633060821, now seen corresponding path program 1 times [2024-12-02 06:52:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:57,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313719068] [2024-12-02 06:52:57,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:57,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:52:58,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:58,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313719068] [2024-12-02 06:52:58,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313719068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:58,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:52:58,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 06:52:58,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633243581] [2024-12-02 06:52:58,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:58,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:52:58,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:58,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:52:58,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:52:58,797 INFO L87 Difference]: Start difference. First operand 3104 states and 3634 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:53:00,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:00,329 INFO L93 Difference]: Finished difference Result 9207 states and 10719 transitions. [2024-12-02 06:53:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:53:00,329 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 192 [2024-12-02 06:53:00,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:00,346 INFO L225 Difference]: With dead ends: 9207 [2024-12-02 06:53:00,346 INFO L226 Difference]: Without dead ends: 6106 [2024-12-02 06:53:00,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:53:00,350 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 428 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2723 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:00,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2723 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:53:00,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2024-12-02 06:53:00,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 3248. [2024-12-02 06:53:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 3045 states have (on average 1.1533661740558292) internal successors, (3512), 3062 states have internal predecessors, (3512), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-12-02 06:53:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 3802 transitions. [2024-12-02 06:53:00,590 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 3802 transitions. Word has length 192 [2024-12-02 06:53:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:00,591 INFO L471 AbstractCegarLoop]: Abstraction has 3248 states and 3802 transitions. [2024-12-02 06:53:00,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:53:00,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 3802 transitions. [2024-12-02 06:53:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-12-02 06:53:00,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:00,595 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:00,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 06:53:00,595 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:00,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1358301207, now seen corresponding path program 1 times [2024-12-02 06:53:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:00,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182199266] [2024-12-02 06:53:00,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:00,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:00,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:00,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:00,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182199266] [2024-12-02 06:53:00,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182199266] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:00,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:00,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:53:00,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063455979] [2024-12-02 06:53:00,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:00,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:53:00,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:00,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:53:00,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:53:00,891 INFO L87 Difference]: Start difference. First operand 3248 states and 3802 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:01,401 INFO L93 Difference]: Finished difference Result 7392 states and 8752 transitions. [2024-12-02 06:53:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:53:01,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 192 [2024-12-02 06:53:01,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:01,410 INFO L225 Difference]: With dead ends: 7392 [2024-12-02 06:53:01,410 INFO L226 Difference]: Without dead ends: 4147 [2024-12-02 06:53:01,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:53:01,413 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 329 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:01,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1258 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2024-12-02 06:53:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 3166. [2024-12-02 06:53:01,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2963 states have (on average 1.1468106648666891) internal successors, (3398), 2980 states have internal predecessors, (3398), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-12-02 06:53:01,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 3688 transitions. [2024-12-02 06:53:01,670 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 3688 transitions. Word has length 192 [2024-12-02 06:53:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:01,670 INFO L471 AbstractCegarLoop]: Abstraction has 3166 states and 3688 transitions. [2024-12-02 06:53:01,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 3688 transitions. [2024-12-02 06:53:01,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-12-02 06:53:01,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:01,673 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:01,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 06:53:01,673 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:01,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:01,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1417294, now seen corresponding path program 1 times [2024-12-02 06:53:01,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:01,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137742291] [2024-12-02 06:53:01,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:01,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:02,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:02,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:02,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137742291] [2024-12-02 06:53:02,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137742291] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:02,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:02,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:53:02,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027400214] [2024-12-02 06:53:02,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:02,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:53:02,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:02,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:53:02,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:53:02,457 INFO L87 Difference]: Start difference. First operand 3166 states and 3688 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:02,929 INFO L93 Difference]: Finished difference Result 6608 states and 7720 transitions. [2024-12-02 06:53:02,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:53:02,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 193 [2024-12-02 06:53:02,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:02,946 INFO L225 Difference]: With dead ends: 6608 [2024-12-02 06:53:02,946 INFO L226 Difference]: Without dead ends: 3445 [2024-12-02 06:53:02,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:53:02,948 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 170 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:02,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1501 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:02,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2024-12-02 06:53:03,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3166. [2024-12-02 06:53:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 2963 states have (on average 1.1468106648666891) internal successors, (3398), 2980 states have internal predecessors, (3398), 145 states have call successors, (145), 57 states have call predecessors, (145), 57 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-12-02 06:53:03,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 3688 transitions. [2024-12-02 06:53:03,275 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 3688 transitions. Word has length 193 [2024-12-02 06:53:03,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:03,275 INFO L471 AbstractCegarLoop]: Abstraction has 3166 states and 3688 transitions. [2024-12-02 06:53:03,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:03,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 3688 transitions. [2024-12-02 06:53:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-12-02 06:53:03,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:03,278 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:03,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 06:53:03,278 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:03,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:03,278 INFO L85 PathProgramCache]: Analyzing trace with hash -391609716, now seen corresponding path program 1 times [2024-12-02 06:53:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227118932] [2024-12-02 06:53:03,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:03,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:03,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227118932] [2024-12-02 06:53:03,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227118932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:03,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:03,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:53:03,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25884683] [2024-12-02 06:53:03,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:03,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:53:03,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:03,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:53:03,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:53:03,510 INFO L87 Difference]: Start difference. First operand 3166 states and 3688 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:03,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:03,845 INFO L93 Difference]: Finished difference Result 6335 states and 7377 transitions. [2024-12-02 06:53:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:53:03,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 193 [2024-12-02 06:53:03,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:03,851 INFO L225 Difference]: With dead ends: 6335 [2024-12-02 06:53:03,851 INFO L226 Difference]: Without dead ends: 3172 [2024-12-02 06:53:03,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:53:03,854 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 226 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:03,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 923 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:03,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2024-12-02 06:53:04,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2815. [2024-12-02 06:53:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2611 states have (on average 1.1463040980467254) internal successors, (2993), 2628 states have internal predecessors, (2993), 145 states have call successors, (145), 58 states have call predecessors, (145), 58 states have return successors, (145), 128 states have call predecessors, (145), 145 states have call successors, (145) [2024-12-02 06:53:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3283 transitions. [2024-12-02 06:53:04,086 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3283 transitions. Word has length 193 [2024-12-02 06:53:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:04,087 INFO L471 AbstractCegarLoop]: Abstraction has 2815 states and 3283 transitions. [2024-12-02 06:53:04,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3283 transitions. [2024-12-02 06:53:04,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-12-02 06:53:04,089 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:04,090 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:04,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 06:53:04,090 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:04,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:04,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1819775333, now seen corresponding path program 1 times [2024-12-02 06:53:04,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:04,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167666446] [2024-12-02 06:53:04,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:04,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:04,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:04,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167666446] [2024-12-02 06:53:04,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167666446] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:04,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898328507] [2024-12-02 06:53:04,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:04,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:04,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:04,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:04,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:53:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:04,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 06:53:04,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:04,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:53:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 8 proven. 528 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-12-02 06:53:05,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:05,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-12-02 06:53:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:05,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898328507] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:53:05,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:53:05,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-12-02 06:53:05,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889183881] [2024-12-02 06:53:05,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:05,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:53:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:05,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:53:05,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:53:05,489 INFO L87 Difference]: Start difference. First operand 2815 states and 3283 transitions. Second operand has 19 states, 16 states have (on average 8.625) internal successors, (138), 19 states have internal predecessors, (138), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-12-02 06:53:06,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:06,815 INFO L93 Difference]: Finished difference Result 5059 states and 5883 transitions. [2024-12-02 06:53:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 06:53:06,816 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 8.625) internal successors, (138), 19 states have internal predecessors, (138), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) Word has length 193 [2024-12-02 06:53:06,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:06,819 INFO L225 Difference]: With dead ends: 5059 [2024-12-02 06:53:06,820 INFO L226 Difference]: Without dead ends: 2247 [2024-12-02 06:53:06,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 06:53:06,822 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 761 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:06,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1347 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:53:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2024-12-02 06:53:07,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1614. [2024-12-02 06:53:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1464 states have (on average 1.144808743169399) internal successors, (1676), 1473 states have internal predecessors, (1676), 105 states have call successors, (105), 44 states have call predecessors, (105), 44 states have return successors, (105), 96 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 06:53:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1886 transitions. [2024-12-02 06:53:07,017 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1886 transitions. Word has length 193 [2024-12-02 06:53:07,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:07,017 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 1886 transitions. [2024-12-02 06:53:07,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 8.625) internal successors, (138), 19 states have internal predecessors, (138), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-12-02 06:53:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1886 transitions. [2024-12-02 06:53:07,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 06:53:07,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:07,019 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:07,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:53:07,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-12-02 06:53:07,220 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:07,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:07,220 INFO L85 PathProgramCache]: Analyzing trace with hash 320602541, now seen corresponding path program 1 times [2024-12-02 06:53:07,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:07,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228643966] [2024-12-02 06:53:07,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:07,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:07,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:07,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228643966] [2024-12-02 06:53:07,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228643966] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:07,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391774665] [2024-12-02 06:53:07,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:07,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:07,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:07,765 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:07,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:53:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:08,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:53:08,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:08,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:53:08,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-12-02 06:53:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 17 proven. 411 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-12-02 06:53:08,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:08,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-12-02 06:53:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:08,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391774665] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:53:08,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:53:08,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 19 [2024-12-02 06:53:08,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168413993] [2024-12-02 06:53:08,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:08,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:53:08,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:08,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:53:08,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:53:08,647 INFO L87 Difference]: Start difference. First operand 1614 states and 1886 transitions. Second operand has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 18 states have internal predecessors, (139), 9 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 6 states have call predecessors, (69), 9 states have call successors, (69) [2024-12-02 06:53:09,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:09,853 INFO L93 Difference]: Finished difference Result 2524 states and 2937 transitions. [2024-12-02 06:53:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 06:53:09,853 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 18 states have internal predecessors, (139), 9 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 6 states have call predecessors, (69), 9 states have call successors, (69) Word has length 196 [2024-12-02 06:53:09,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:09,856 INFO L225 Difference]: With dead ends: 2524 [2024-12-02 06:53:09,856 INFO L226 Difference]: Without dead ends: 966 [2024-12-02 06:53:09,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 387 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 06:53:09,858 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 562 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:09,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1197 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:53:09,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-12-02 06:53:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 710. [2024-12-02 06:53:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 635 states have (on average 1.1448818897637796) internal successors, (727), 637 states have internal predecessors, (727), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 06:53:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 829 transitions. [2024-12-02 06:53:09,959 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 829 transitions. Word has length 196 [2024-12-02 06:53:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:09,959 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 829 transitions. [2024-12-02 06:53:09,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 18 states have internal predecessors, (139), 9 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 6 states have call predecessors, (69), 9 states have call successors, (69) [2024-12-02 06:53:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 829 transitions. [2024-12-02 06:53:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 06:53:09,960 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:09,960 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:09,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:53:10,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-12-02 06:53:10,160 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:10,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:10,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1936284236, now seen corresponding path program 1 times [2024-12-02 06:53:10,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:10,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503236132] [2024-12-02 06:53:10,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:10,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:10,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:10,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503236132] [2024-12-02 06:53:10,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503236132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:10,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:10,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:53:10,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198980869] [2024-12-02 06:53:10,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:10,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:53:10,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:10,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:53:10,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:53:10,269 INFO L87 Difference]: Start difference. First operand 710 states and 829 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:10,406 INFO L93 Difference]: Finished difference Result 1211 states and 1417 transitions. [2024-12-02 06:53:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:53:10,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 196 [2024-12-02 06:53:10,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:10,408 INFO L225 Difference]: With dead ends: 1211 [2024-12-02 06:53:10,408 INFO L226 Difference]: Without dead ends: 561 [2024-12-02 06:53:10,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:53:10,409 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:10,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 489 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:53:10,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-12-02 06:53:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-12-02 06:53:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 486 states have (on average 1.1296296296296295) internal successors, (549), 488 states have internal predecessors, (549), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 06:53:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 651 transitions. [2024-12-02 06:53:10,511 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 651 transitions. Word has length 196 [2024-12-02 06:53:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:10,512 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 651 transitions. [2024-12-02 06:53:10,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:10,512 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 651 transitions. [2024-12-02 06:53:10,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 06:53:10,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:10,512 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:10,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 06:53:10,513 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:10,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash 773955885, now seen corresponding path program 1 times [2024-12-02 06:53:10,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:10,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058345617] [2024-12-02 06:53:10,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:10,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:10,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:10,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:10,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058345617] [2024-12-02 06:53:10,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058345617] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:10,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168424291] [2024-12-02 06:53:10,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:10,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:10,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:10,916 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:10,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:53:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:11,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 06:53:11,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:11,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:53:11,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-12-02 06:53:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 493 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-12-02 06:53:11,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:11,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-12-02 06:53:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:11,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168424291] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:53:11,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:53:11,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 16 [2024-12-02 06:53:11,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094589305] [2024-12-02 06:53:11,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:11,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:53:11,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:11,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:53:11,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:53:11,790 INFO L87 Difference]: Start difference. First operand 561 states and 651 transitions. Second operand has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 16 states have internal predecessors, (100), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-12-02 06:53:12,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:12,289 INFO L93 Difference]: Finished difference Result 952 states and 1103 transitions. [2024-12-02 06:53:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:53:12,290 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 16 states have internal predecessors, (100), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) Word has length 196 [2024-12-02 06:53:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:12,292 INFO L225 Difference]: With dead ends: 952 [2024-12-02 06:53:12,292 INFO L226 Difference]: Without dead ends: 451 [2024-12-02 06:53:12,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 387 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:53:12,293 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 307 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:12,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 961 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:53:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-12-02 06:53:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 419. [2024-12-02 06:53:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 344 states have (on average 1.1133720930232558) internal successors, (383), 346 states have internal predecessors, (383), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 06:53:12,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 485 transitions. [2024-12-02 06:53:12,387 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 485 transitions. Word has length 196 [2024-12-02 06:53:12,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:12,387 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 485 transitions. [2024-12-02 06:53:12,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 16 states have internal predecessors, (100), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-12-02 06:53:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 485 transitions. [2024-12-02 06:53:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 06:53:12,388 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:12,388 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:12,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:53:12,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-12-02 06:53:12,589 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:12,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:12,589 INFO L85 PathProgramCache]: Analyzing trace with hash -326702483, now seen corresponding path program 1 times [2024-12-02 06:53:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:12,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071444907] [2024-12-02 06:53:12,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:12,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:13,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:13,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071444907] [2024-12-02 06:53:13,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071444907] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:13,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439549698] [2024-12-02 06:53:13,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:13,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:13,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:13,066 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:13,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 06:53:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:13,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 06:53:13,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:13,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:53:13,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:53:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 13 proven. 543 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-12-02 06:53:13,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:14,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-12-02 06:53:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:14,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439549698] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:53:14,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:53:14,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 21 [2024-12-02 06:53:14,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606946056] [2024-12-02 06:53:14,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:14,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 06:53:14,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:14,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 06:53:14,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:53:14,112 INFO L87 Difference]: Start difference. First operand 419 states and 485 transitions. Second operand has 21 states, 18 states have (on average 6.833333333333333) internal successors, (123), 21 states have internal predecessors, (123), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-12-02 06:53:14,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:14,704 INFO L93 Difference]: Finished difference Result 798 states and 923 transitions. [2024-12-02 06:53:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:53:14,704 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 6.833333333333333) internal successors, (123), 21 states have internal predecessors, (123), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) Word has length 196 [2024-12-02 06:53:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:14,706 INFO L225 Difference]: With dead ends: 798 [2024-12-02 06:53:14,706 INFO L226 Difference]: Without dead ends: 439 [2024-12-02 06:53:14,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:53:14,707 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 851 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:14,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1018 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:53:14,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-12-02 06:53:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 407. [2024-12-02 06:53:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 332 states have (on average 1.105421686746988) internal successors, (367), 334 states have internal predecessors, (367), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 06:53:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 469 transitions. [2024-12-02 06:53:14,802 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 469 transitions. Word has length 196 [2024-12-02 06:53:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:14,802 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 469 transitions. [2024-12-02 06:53:14,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 6.833333333333333) internal successors, (123), 21 states have internal predecessors, (123), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-12-02 06:53:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 469 transitions. [2024-12-02 06:53:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 06:53:14,803 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:14,803 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:14,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 06:53:15,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-12-02 06:53:15,003 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:15,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1869085907, now seen corresponding path program 1 times [2024-12-02 06:53:15,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:15,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939595294] [2024-12-02 06:53:15,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 60 proven. 66 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-12-02 06:53:15,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:15,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939595294] [2024-12-02 06:53:15,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939595294] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:15,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515797559] [2024-12-02 06:53:15,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:15,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:15,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:15,494 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:15,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 06:53:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:15,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:53:15,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:15,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:53:16,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 12 proven. 556 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-12-02 06:53:16,162 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:16,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-12-02 06:53:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:16,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515797559] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:53:16,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:53:16,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 16 [2024-12-02 06:53:16,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272332194] [2024-12-02 06:53:16,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:16,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:53:16,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:16,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:53:16,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:53:16,414 INFO L87 Difference]: Start difference. First operand 407 states and 469 transitions. Second operand has 16 states, 12 states have (on average 11.25) internal successors, (135), 15 states have internal predecessors, (135), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-12-02 06:53:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:17,074 INFO L93 Difference]: Finished difference Result 641 states and 733 transitions. [2024-12-02 06:53:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 06:53:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 11.25) internal successors, (135), 15 states have internal predecessors, (135), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) Word has length 196 [2024-12-02 06:53:17,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:17,077 INFO L225 Difference]: With dead ends: 641 [2024-12-02 06:53:17,077 INFO L226 Difference]: Without dead ends: 294 [2024-12-02 06:53:17,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-12-02 06:53:17,078 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 308 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:17,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 790 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:53:17,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-12-02 06:53:17,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 272. [2024-12-02 06:53:17,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 215 states have (on average 1.083720930232558) internal successors, (233), 216 states have internal predecessors, (233), 37 states have call successors, (37), 19 states have call predecessors, (37), 19 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 06:53:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 307 transitions. [2024-12-02 06:53:17,180 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 307 transitions. Word has length 196 [2024-12-02 06:53:17,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:17,180 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 307 transitions. [2024-12-02 06:53:17,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 11.25) internal successors, (135), 15 states have internal predecessors, (135), 8 states have call successors, (69), 3 states have call predecessors, (69), 5 states have return successors, (69), 5 states have call predecessors, (69), 8 states have call successors, (69) [2024-12-02 06:53:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 307 transitions. [2024-12-02 06:53:17,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 06:53:17,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:17,181 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:17,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 06:53:17,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-12-02 06:53:17,382 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:17,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:17,382 INFO L85 PathProgramCache]: Analyzing trace with hash 956246760, now seen corresponding path program 1 times [2024-12-02 06:53:17,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:17,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970983666] [2024-12-02 06:53:17,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:17,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:17,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970983666] [2024-12-02 06:53:17,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970983666] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:17,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:17,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:53:17,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17077338] [2024-12-02 06:53:17,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:17,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:53:17,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:17,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:53:17,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:53:17,655 INFO L87 Difference]: Start difference. First operand 272 states and 307 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:17,829 INFO L93 Difference]: Finished difference Result 480 states and 544 transitions. [2024-12-02 06:53:17,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:53:17,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 198 [2024-12-02 06:53:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:17,831 INFO L225 Difference]: With dead ends: 480 [2024-12-02 06:53:17,831 INFO L226 Difference]: Without dead ends: 272 [2024-12-02 06:53:17,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:53:17,832 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 124 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:17,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 407 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:17,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-12-02 06:53:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-12-02 06:53:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 215 states have (on average 1.0790697674418606) internal successors, (232), 216 states have internal predecessors, (232), 37 states have call successors, (37), 19 states have call predecessors, (37), 19 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 06:53:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 306 transitions. [2024-12-02 06:53:17,935 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 306 transitions. Word has length 198 [2024-12-02 06:53:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:17,935 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 306 transitions. [2024-12-02 06:53:17,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 306 transitions. [2024-12-02 06:53:17,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 06:53:17,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:17,936 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:17,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 06:53:17,936 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:17,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:17,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1721855795, now seen corresponding path program 1 times [2024-12-02 06:53:17,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:17,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909953049] [2024-12-02 06:53:17,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:17,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:18,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:18,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:18,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909953049] [2024-12-02 06:53:18,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909953049] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:18,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:18,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:53:18,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093835551] [2024-12-02 06:53:18,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:18,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:53:18,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:18,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:53:18,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:53:18,879 INFO L87 Difference]: Start difference. First operand 272 states and 306 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:19,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:19,472 INFO L93 Difference]: Finished difference Result 648 states and 729 transitions. [2024-12-02 06:53:19,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:53:19,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-12-02 06:53:19,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:19,475 INFO L225 Difference]: With dead ends: 648 [2024-12-02 06:53:19,475 INFO L226 Difference]: Without dead ends: 440 [2024-12-02 06:53:19,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:53:19,476 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 90 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:19,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1589 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:53:19,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-12-02 06:53:19,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 437. [2024-12-02 06:53:19,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 353 states have (on average 1.0878186968838528) internal successors, (384), 355 states have internal predecessors, (384), 53 states have call successors, (53), 30 states have call predecessors, (53), 30 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 06:53:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 490 transitions. [2024-12-02 06:53:19,620 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 490 transitions. Word has length 200 [2024-12-02 06:53:19,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:19,620 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 490 transitions. [2024-12-02 06:53:19,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 490 transitions. [2024-12-02 06:53:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 06:53:19,621 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:19,621 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:19,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 06:53:19,621 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:19,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:19,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1041797425, now seen corresponding path program 1 times [2024-12-02 06:53:19,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:19,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690181100] [2024-12-02 06:53:19,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:19,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:19,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:19,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690181100] [2024-12-02 06:53:19,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690181100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:19,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:19,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:53:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745563801] [2024-12-02 06:53:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:19,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:53:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:19,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:53:19,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:53:19,760 INFO L87 Difference]: Start difference. First operand 437 states and 490 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:19,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:20,000 INFO L93 Difference]: Finished difference Result 821 states and 919 transitions. [2024-12-02 06:53:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:53:20,000 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), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-12-02 06:53:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:20,002 INFO L225 Difference]: With dead ends: 821 [2024-12-02 06:53:20,002 INFO L226 Difference]: Without dead ends: 448 [2024-12-02 06:53:20,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:53:20,003 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 84 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:20,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 581 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:20,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-12-02 06:53:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 439. [2024-12-02 06:53:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 353 states have (on average 1.0821529745042493) internal successors, (382), 355 states have internal predecessors, (382), 54 states have call successors, (54), 31 states have call predecessors, (54), 31 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 06:53:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 490 transitions. [2024-12-02 06:53:20,127 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 490 transitions. Word has length 200 [2024-12-02 06:53:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:20,127 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 490 transitions. [2024-12-02 06:53:20,127 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), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 490 transitions. [2024-12-02 06:53:20,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 06:53:20,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:20,128 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:20,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 06:53:20,128 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:20,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1473709301, now seen corresponding path program 1 times [2024-12-02 06:53:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:20,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534416515] [2024-12-02 06:53:20,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:20,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:20,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:20,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534416515] [2024-12-02 06:53:20,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534416515] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:20,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:20,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:53:20,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177931717] [2024-12-02 06:53:20,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:20,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:53:20,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:20,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:53:20,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:53:20,235 INFO L87 Difference]: Start difference. First operand 439 states and 490 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:20,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:20,500 INFO L93 Difference]: Finished difference Result 815 states and 909 transitions. [2024-12-02 06:53:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:53:20,501 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), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-12-02 06:53:20,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:20,503 INFO L225 Difference]: With dead ends: 815 [2024-12-02 06:53:20,504 INFO L226 Difference]: Without dead ends: 446 [2024-12-02 06:53:20,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:53:20,505 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 83 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:20,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 879 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:20,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-12-02 06:53:20,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 358. [2024-12-02 06:53:20,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 298 states have (on average 1.0838926174496644) internal successors, (323), 299 states have internal predecessors, (323), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 06:53:20,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 399 transitions. [2024-12-02 06:53:20,663 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 399 transitions. Word has length 200 [2024-12-02 06:53:20,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:20,664 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 399 transitions. [2024-12-02 06:53:20,664 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), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:20,664 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 399 transitions. [2024-12-02 06:53:20,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 06:53:20,665 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:20,665 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:20,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 06:53:20,665 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:20,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash -793650931, now seen corresponding path program 1 times [2024-12-02 06:53:20,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:20,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909655735] [2024-12-02 06:53:20,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:20,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:21,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:21,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909655735] [2024-12-02 06:53:21,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909655735] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:21,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:21,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:53:21,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661481240] [2024-12-02 06:53:21,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:21,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:53:21,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:21,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:53:21,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:53:21,163 INFO L87 Difference]: Start difference. First operand 358 states and 399 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:21,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:21,429 INFO L93 Difference]: Finished difference Result 786 states and 878 transitions. [2024-12-02 06:53:21,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:53:21,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 200 [2024-12-02 06:53:21,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:21,432 INFO L225 Difference]: With dead ends: 786 [2024-12-02 06:53:21,432 INFO L226 Difference]: Without dead ends: 498 [2024-12-02 06:53:21,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:53:21,432 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 123 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:21,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 2184 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-12-02 06:53:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 354. [2024-12-02 06:53:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 294 states have (on average 1.0816326530612246) internal successors, (318), 295 states have internal predecessors, (318), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 06:53:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 394 transitions. [2024-12-02 06:53:21,521 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 394 transitions. Word has length 200 [2024-12-02 06:53:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:21,521 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 394 transitions. [2024-12-02 06:53:21,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:21,521 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 394 transitions. [2024-12-02 06:53:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 06:53:21,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:21,522 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:21,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 06:53:21,522 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:21,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:21,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1661340575, now seen corresponding path program 1 times [2024-12-02 06:53:21,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:21,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999333834] [2024-12-02 06:53:21,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:21,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:22,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:22,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999333834] [2024-12-02 06:53:22,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999333834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:22,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:22,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:53:22,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983859330] [2024-12-02 06:53:22,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:22,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:53:22,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:22,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:53:22,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:53:22,098 INFO L87 Difference]: Start difference. First operand 354 states and 394 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:22,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:22,366 INFO L93 Difference]: Finished difference Result 444 states and 489 transitions. [2024-12-02 06:53:22,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:53:22,366 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 202 [2024-12-02 06:53:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:22,368 INFO L225 Difference]: With dead ends: 444 [2024-12-02 06:53:22,368 INFO L226 Difference]: Without dead ends: 442 [2024-12-02 06:53:22,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:53:22,369 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 113 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:22,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1032 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:53:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-12-02 06:53:22,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 415. [2024-12-02 06:53:22,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 355 states have (on average 1.076056338028169) internal successors, (382), 356 states have internal predecessors, (382), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 06:53:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 458 transitions. [2024-12-02 06:53:22,455 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 458 transitions. Word has length 202 [2024-12-02 06:53:22,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:22,456 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 458 transitions. [2024-12-02 06:53:22,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:22,456 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 458 transitions. [2024-12-02 06:53:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 06:53:22,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:22,457 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:22,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-12-02 06:53:22,457 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:22,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1570221796, now seen corresponding path program 1 times [2024-12-02 06:53:22,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:22,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303458237] [2024-12-02 06:53:22,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:22,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:23,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:23,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:23,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303458237] [2024-12-02 06:53:23,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303458237] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:23,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:23,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 06:53:23,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779429617] [2024-12-02 06:53:23,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:23,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:53:23,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:23,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:53:23,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:53:23,106 INFO L87 Difference]: Start difference. First operand 415 states and 458 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:23,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:23,606 INFO L93 Difference]: Finished difference Result 465 states and 513 transitions. [2024-12-02 06:53:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:53:23,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-12-02 06:53:23,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:23,609 INFO L225 Difference]: With dead ends: 465 [2024-12-02 06:53:23,609 INFO L226 Difference]: Without dead ends: 463 [2024-12-02 06:53:23,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:53:23,609 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 212 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:23,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1350 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:53:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-12-02 06:53:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 417. [2024-12-02 06:53:23,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 357 states have (on average 1.0784313725490196) internal successors, (385), 358 states have internal predecessors, (385), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 06:53:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 461 transitions. [2024-12-02 06:53:23,705 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 461 transitions. Word has length 204 [2024-12-02 06:53:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:23,705 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 461 transitions. [2024-12-02 06:53:23,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 461 transitions. [2024-12-02 06:53:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 06:53:23,706 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:23,706 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:23,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-12-02 06:53:23,706 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:23,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:23,706 INFO L85 PathProgramCache]: Analyzing trace with hash -949738138, now seen corresponding path program 1 times [2024-12-02 06:53:23,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:23,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366830662] [2024-12-02 06:53:23,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:23,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-12-02 06:53:23,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:23,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366830662] [2024-12-02 06:53:23,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366830662] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:23,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:53:23,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:53:23,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422598638] [2024-12-02 06:53:23,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:23,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:53:23,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:23,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:53:23,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:53:23,992 INFO L87 Difference]: Start difference. First operand 417 states and 461 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:24,124 INFO L93 Difference]: Finished difference Result 764 states and 846 transitions. [2024-12-02 06:53:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:53:24,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-12-02 06:53:24,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:24,126 INFO L225 Difference]: With dead ends: 764 [2024-12-02 06:53:24,126 INFO L226 Difference]: Without dead ends: 417 [2024-12-02 06:53:24,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:53:24,126 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 78 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:24,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 358 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:53:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-12-02 06:53:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-12-02 06:53:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 357 states have (on average 1.072829131652661) internal successors, (383), 358 states have internal predecessors, (383), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 06:53:24,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 459 transitions. [2024-12-02 06:53:24,212 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 459 transitions. Word has length 204 [2024-12-02 06:53:24,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:24,212 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 459 transitions. [2024-12-02 06:53:24,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-12-02 06:53:24,213 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 459 transitions. [2024-12-02 06:53:24,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 06:53:24,213 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:24,213 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:24,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-12-02 06:53:24,214 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:24,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:24,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1264711975, now seen corresponding path program 1 times [2024-12-02 06:53:24,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:24,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964579189] [2024-12-02 06:53:24,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:24,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:24,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964579189] [2024-12-02 06:53:24,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964579189] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024620213] [2024-12-02 06:53:24,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:24,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:24,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:24,630 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:24,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 06:53:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:24,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 06:53:24,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:25,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:53:25,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-12-02 06:53:25,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 06:53:25,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 13 proven. 543 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-12-02 06:53:25,328 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:25,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-12-02 06:53:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-12-02 06:53:25,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024620213] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:53:25,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:53:25,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2024-12-02 06:53:25,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884329825] [2024-12-02 06:53:25,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:25,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 06:53:25,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:25,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 06:53:25,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:53:25,671 INFO L87 Difference]: Start difference. First operand 417 states and 459 transitions. Second operand has 17 states, 14 states have (on average 8.285714285714286) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-12-02 06:53:26,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:26,668 INFO L93 Difference]: Finished difference Result 919 states and 1015 transitions. [2024-12-02 06:53:26,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 06:53:26,668 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 8.285714285714286) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) Word has length 204 [2024-12-02 06:53:26,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:26,670 INFO L225 Difference]: With dead ends: 919 [2024-12-02 06:53:26,670 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 06:53:26,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 400 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 06:53:26,671 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 480 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:26,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1459 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:53:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 06:53:26,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 06:53:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 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 06:53:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 06:53:26,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2024-12-02 06:53:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:26,672 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:53:26,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 8.285714285714286) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 7 states have call successors, (48) [2024-12-02 06:53:26,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 06:53:26,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 06:53:26,675 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:53:26,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 06:53:26,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0212f10-1d73-47bb-8243-4e49146b563d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-12-02 06:53:26,877 INFO L422 BasicCegarLoop]: Path program 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] [2024-12-02 06:53:26,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.