./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-34.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_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/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_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/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_37f57361-dfe4-4771-9065-134367982f8f/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 a356de088718b875f6f2396a50433e83aa6fe2b03aff9fb8f00ce9106af95d3b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:06:15,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:06:15,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:06:15,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:06:15,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:06:15,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:06:15,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:06:15,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:06:15,799 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:06:15,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:06:15,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:06:15,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:06:15,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:06:15,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:06:15,800 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:06:15,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:06:15,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:06:15,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:06:15,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:06:15,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:06:15,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:06:15,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:06:15,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:06:15,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:06:15,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:06:15,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:06:15,804 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_37f57361-dfe4-4771-9065-134367982f8f/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 -> a356de088718b875f6f2396a50433e83aa6fe2b03aff9fb8f00ce9106af95d3b [2024-12-02 06:06:16,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:06:16,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:06:16,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:06:16,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:06:16,015 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:06:16,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-34.i [2024-12-02 06:06:18,658 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/data/430cbce0b/c883a4fb2979400baded7af6a96fbeea/FLAG63d5bb76d [2024-12-02 06:06:18,866 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:06:18,867 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-34.i [2024-12-02 06:06:18,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/data/430cbce0b/c883a4fb2979400baded7af6a96fbeea/FLAG63d5bb76d [2024-12-02 06:06:19,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/data/430cbce0b/c883a4fb2979400baded7af6a96fbeea [2024-12-02 06:06:19,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:06:19,236 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:06:19,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:06:19,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:06:19,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:06:19,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691b011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19, skipping insertion in model container [2024-12-02 06:06:19,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:06:19,379 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_37f57361-dfe4-4771-9065-134367982f8f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-34.i[915,928] [2024-12-02 06:06:19,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:06:19,441 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:06:19,451 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_37f57361-dfe4-4771-9065-134367982f8f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-34.i[915,928] [2024-12-02 06:06:19,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:06:19,492 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:06:19,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19 WrapperNode [2024-12-02 06:06:19,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:06:19,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:06:19,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:06:19,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:06:19,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,537 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 223 [2024-12-02 06:06:19,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:06:19,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:06:19,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:06:19,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:06:19,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,564 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 06:06:19,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,572 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:06:19,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:06:19,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:06:19,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:06:19,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (1/1) ... [2024-12-02 06:06:19,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:06:19,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:19,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:06:19,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:06:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:06:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:06:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:06:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:06:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:06:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:06:19,706 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:06:19,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:06:20,011 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-12-02 06:06:20,011 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:06:20,020 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:06:20,020 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:06:20,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:20 BoogieIcfgContainer [2024-12-02 06:06:20,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:06:20,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:06:20,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:06:20,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:06:20,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:06:19" (1/3) ... [2024-12-02 06:06:20,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003a5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:06:20, skipping insertion in model container [2024-12-02 06:06:20,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:19" (2/3) ... [2024-12-02 06:06:20,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003a5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:06:20, skipping insertion in model container [2024-12-02 06:06:20,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:20" (3/3) ... [2024-12-02 06:06:20,028 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-34.i [2024-12-02 06:06:20,039 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:06:20,040 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-34.i that has 2 procedures, 86 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:06:20,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:06:20,093 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;@71750431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:06:20,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:06:20,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 06:06:20,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 06:06:20,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:20,106 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:20,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:20,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash 795972227, now seen corresponding path program 1 times [2024-12-02 06:06:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:20,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214303173] [2024-12-02 06:06:20,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:20,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2024-12-02 06:06:20,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:20,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214303173] [2024-12-02 06:06:20,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214303173] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:06:20,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550586864] [2024-12-02 06:06:20,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:20,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:20,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:20,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:06:20,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:06:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:20,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:06:20,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:06:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2024-12-02 06:06:20,554 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:06:20,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550586864] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:20,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:06:20,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:06:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063784654] [2024-12-02 06:06:20,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:20,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:06:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:20,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:06:20,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:06:20,575 INFO L87 Difference]: Start difference. First operand has 86 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:06:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:20,599 INFO L93 Difference]: Finished difference Result 165 states and 280 transitions. [2024-12-02 06:06:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:06:20,600 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2024-12-02 06:06:20,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:20,606 INFO L225 Difference]: With dead ends: 165 [2024-12-02 06:06:20,606 INFO L226 Difference]: Without dead ends: 82 [2024-12-02 06:06:20,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 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 06:06:20,611 INFO L435 NwaCegarLoop]: 125 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, 125 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 06:06:20,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:06:20,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-02 06:06:20,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-12-02 06:06:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 06:06:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2024-12-02 06:06:20,645 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 125 transitions. Word has length 145 [2024-12-02 06:06:20,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:20,645 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 125 transitions. [2024-12-02 06:06:20,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:06:20,646 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 125 transitions. [2024-12-02 06:06:20,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 06:06:20,649 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:20,649 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:20,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:06:20,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:06:20,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:20,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:20,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1620307591, now seen corresponding path program 1 times [2024-12-02 06:06:20,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:20,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004130697] [2024-12-02 06:06:20,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:20,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:21,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:21,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004130697] [2024-12-02 06:06:21,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004130697] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:21,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:21,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:06:21,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839750131] [2024-12-02 06:06:21,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:21,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:06:21,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:21,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:06:21,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:06:21,278 INFO L87 Difference]: Start difference. First operand 82 states and 125 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:21,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:21,447 INFO L93 Difference]: Finished difference Result 270 states and 414 transitions. [2024-12-02 06:06:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:06:21,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 145 [2024-12-02 06:06:21,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:21,451 INFO L225 Difference]: With dead ends: 270 [2024-12-02 06:06:21,451 INFO L226 Difference]: Without dead ends: 191 [2024-12-02 06:06:21,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:21,453 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 135 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:21,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 393 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:06:21,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-12-02 06:06:21,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 161. [2024-12-02 06:06:21,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 114 states have (on average 1.394736842105263) internal successors, (159), 114 states have internal predecessors, (159), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 06:06:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 247 transitions. [2024-12-02 06:06:21,481 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 247 transitions. Word has length 145 [2024-12-02 06:06:21,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:21,481 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 247 transitions. [2024-12-02 06:06:21,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:21,482 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 247 transitions. [2024-12-02 06:06:21,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 06:06:21,484 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:21,484 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:21,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:06:21,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:21,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:21,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2124638106, now seen corresponding path program 1 times [2024-12-02 06:06:21,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:21,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483657736] [2024-12-02 06:06:21,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:21,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:21,809 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:21,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:21,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483657736] [2024-12-02 06:06:21,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483657736] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:21,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:21,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:06:21,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395041232] [2024-12-02 06:06:21,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:21,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:06:21,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:21,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:06:21,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:21,811 INFO L87 Difference]: Start difference. First operand 161 states and 247 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:22,107 INFO L93 Difference]: Finished difference Result 472 states and 724 transitions. [2024-12-02 06:06:22,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:06:22,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 146 [2024-12-02 06:06:22,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:22,112 INFO L225 Difference]: With dead ends: 472 [2024-12-02 06:06:22,112 INFO L226 Difference]: Without dead ends: 314 [2024-12-02 06:06:22,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 06:06:22,114 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 158 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:22,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 395 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:06:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-12-02 06:06:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 165. [2024-12-02 06:06:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 118 states have (on average 1.38135593220339) internal successors, (163), 118 states have internal predecessors, (163), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 06:06:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 251 transitions. [2024-12-02 06:06:22,160 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 251 transitions. Word has length 146 [2024-12-02 06:06:22,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:22,161 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 251 transitions. [2024-12-02 06:06:22,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:22,162 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 251 transitions. [2024-12-02 06:06:22,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 06:06:22,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:22,164 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:22,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:06:22,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:22,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:22,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1528960143, now seen corresponding path program 1 times [2024-12-02 06:06:22,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:22,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160033358] [2024-12-02 06:06:22,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:22,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:31,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:31,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160033358] [2024-12-02 06:06:31,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160033358] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:31,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:31,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 06:06:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041460138] [2024-12-02 06:06:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:31,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 06:06:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:31,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 06:06:31,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:06:31,234 INFO L87 Difference]: Start difference. First operand 165 states and 251 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:34,014 INFO L93 Difference]: Finished difference Result 610 states and 906 transitions. [2024-12-02 06:06:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:06:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2024-12-02 06:06:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:34,018 INFO L225 Difference]: With dead ends: 610 [2024-12-02 06:06:34,018 INFO L226 Difference]: Without dead ends: 448 [2024-12-02 06:06:34,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2024-12-02 06:06:34,020 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 564 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:34,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 581 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 06:06:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-12-02 06:06:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 294. [2024-12-02 06:06:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 224 states have internal predecessors, (311), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:06:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 443 transitions. [2024-12-02 06:06:34,057 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 443 transitions. Word has length 147 [2024-12-02 06:06:34,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:34,057 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 443 transitions. [2024-12-02 06:06:34,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 443 transitions. [2024-12-02 06:06:34,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 06:06:34,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:34,060 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:34,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:06:34,060 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:34,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:34,061 INFO L85 PathProgramCache]: Analyzing trace with hash -990999791, now seen corresponding path program 1 times [2024-12-02 06:06:34,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:34,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741638630] [2024-12-02 06:06:34,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:34,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:36,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:36,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741638630] [2024-12-02 06:06:36,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741638630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:36,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:36,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:06:36,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484570379] [2024-12-02 06:06:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:36,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:06:36,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:36,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:06:36,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:06:36,146 INFO L87 Difference]: Start difference. First operand 294 states and 443 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:37,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:37,309 INFO L93 Difference]: Finished difference Result 683 states and 1029 transitions. [2024-12-02 06:06:37,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:06:37,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2024-12-02 06:06:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:37,313 INFO L225 Difference]: With dead ends: 683 [2024-12-02 06:06:37,313 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 06:06:37,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:06:37,314 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 368 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:37,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 478 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 06:06:37,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 339. [2024-12-02 06:06:37,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 269 states have (on average 1.3903345724907064) internal successors, (374), 269 states have internal predecessors, (374), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:06:37,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 506 transitions. [2024-12-02 06:06:37,350 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 506 transitions. Word has length 147 [2024-12-02 06:06:37,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:37,351 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 506 transitions. [2024-12-02 06:06:37,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:37,351 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 506 transitions. [2024-12-02 06:06:37,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 06:06:37,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:37,352 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:37,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:06:37,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:37,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:37,353 INFO L85 PathProgramCache]: Analyzing trace with hash -2085948783, now seen corresponding path program 1 times [2024-12-02 06:06:37,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:37,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517609242] [2024-12-02 06:06:37,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:37,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:40,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:40,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517609242] [2024-12-02 06:06:40,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517609242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:40,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:40,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:06:40,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936448935] [2024-12-02 06:06:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:40,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:06:40,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:40,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:06:40,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:06:40,623 INFO L87 Difference]: Start difference. First operand 339 states and 506 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:41,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:41,860 INFO L93 Difference]: Finished difference Result 655 states and 973 transitions. [2024-12-02 06:06:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:06:41,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2024-12-02 06:06:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:41,865 INFO L225 Difference]: With dead ends: 655 [2024-12-02 06:06:41,865 INFO L226 Difference]: Without dead ends: 475 [2024-12-02 06:06:41,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:06:41,866 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 305 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:41,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 479 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:06:41,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-12-02 06:06:41,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 359. [2024-12-02 06:06:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 289 states have (on average 1.411764705882353) internal successors, (408), 289 states have internal predecessors, (408), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:06:41,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 540 transitions. [2024-12-02 06:06:41,896 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 540 transitions. Word has length 147 [2024-12-02 06:06:41,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:41,897 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 540 transitions. [2024-12-02 06:06:41,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:41,897 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 540 transitions. [2024-12-02 06:06:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 06:06:41,899 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:41,899 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:41,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:06:41,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:41,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash 258827072, now seen corresponding path program 1 times [2024-12-02 06:06:41,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:41,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967683688] [2024-12-02 06:06:41,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:41,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:42,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:42,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967683688] [2024-12-02 06:06:42,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967683688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:42,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:42,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:06:42,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204268023] [2024-12-02 06:06:42,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:42,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:06:42,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:42,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:06:42,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:06:42,926 INFO L87 Difference]: Start difference. First operand 359 states and 540 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:43,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:43,306 INFO L93 Difference]: Finished difference Result 675 states and 1006 transitions. [2024-12-02 06:06:43,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:06:43,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2024-12-02 06:06:43,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:43,309 INFO L225 Difference]: With dead ends: 675 [2024-12-02 06:06:43,309 INFO L226 Difference]: Without dead ends: 467 [2024-12-02 06:06:43,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:06:43,310 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 178 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:43,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 429 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:06:43,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-12-02 06:06:43,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 365. [2024-12-02 06:06:43,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 295 states have (on average 1.3966101694915254) internal successors, (412), 295 states have internal predecessors, (412), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:06:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 544 transitions. [2024-12-02 06:06:43,330 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 544 transitions. Word has length 147 [2024-12-02 06:06:43,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:43,330 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 544 transitions. [2024-12-02 06:06:43,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 544 transitions. [2024-12-02 06:06:43,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 06:06:43,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:43,332 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:43,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:06:43,332 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:43,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 517842893, now seen corresponding path program 1 times [2024-12-02 06:06:43,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:43,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191358125] [2024-12-02 06:06:43,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:43,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:43,534 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:43,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191358125] [2024-12-02 06:06:43,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191358125] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:43,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:43,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:06:43,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024843891] [2024-12-02 06:06:43,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:43,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:06:43,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:43,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:06:43,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:06:43,535 INFO L87 Difference]: Start difference. First operand 365 states and 544 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:43,757 INFO L93 Difference]: Finished difference Result 587 states and 877 transitions. [2024-12-02 06:06:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:06:43,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2024-12-02 06:06:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:43,760 INFO L225 Difference]: With dead ends: 587 [2024-12-02 06:06:43,760 INFO L226 Difference]: Without dead ends: 365 [2024-12-02 06:06:43,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:06:43,761 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 87 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:43,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 302 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:06:43,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-12-02 06:06:43,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 337. [2024-12-02 06:06:43,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 267 states have (on average 1.3558052434456929) internal successors, (362), 267 states have internal predecessors, (362), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:06:43,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 494 transitions. [2024-12-02 06:06:43,790 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 494 transitions. Word has length 147 [2024-12-02 06:06:43,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:43,790 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 494 transitions. [2024-12-02 06:06:43,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 494 transitions. [2024-12-02 06:06:43,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 06:06:43,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:43,791 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:43,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:06:43,791 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:43,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:43,792 INFO L85 PathProgramCache]: Analyzing trace with hash -577421617, now seen corresponding path program 1 times [2024-12-02 06:06:43,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:43,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455806834] [2024-12-02 06:06:43,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:43,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:46,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455806834] [2024-12-02 06:06:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455806834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:46,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:46,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:06:46,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349924966] [2024-12-02 06:06:46,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:46,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:06:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:46,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:06:46,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:06:46,305 INFO L87 Difference]: Start difference. First operand 337 states and 494 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:47,944 INFO L93 Difference]: Finished difference Result 684 states and 994 transitions. [2024-12-02 06:06:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:06:47,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 148 [2024-12-02 06:06:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:47,948 INFO L225 Difference]: With dead ends: 684 [2024-12-02 06:06:47,948 INFO L226 Difference]: Without dead ends: 522 [2024-12-02 06:06:47,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:06:47,949 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 325 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:47,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 417 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:06:47,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-12-02 06:06:47,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 365. [2024-12-02 06:06:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 293 states have (on average 1.3378839590443685) internal successors, (392), 293 states have internal predecessors, (392), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:06:47,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 524 transitions. [2024-12-02 06:06:47,988 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 524 transitions. Word has length 148 [2024-12-02 06:06:47,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:47,989 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 524 transitions. [2024-12-02 06:06:47,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 524 transitions. [2024-12-02 06:06:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 06:06:47,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:47,991 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:47,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:06:47,991 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:47,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:47,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1412513469, now seen corresponding path program 1 times [2024-12-02 06:06:47,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:47,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858003950] [2024-12-02 06:06:47,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:47,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:06:52,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:52,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858003950] [2024-12-02 06:06:52,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858003950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:52,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:06:52,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 06:06:52,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063703594] [2024-12-02 06:06:52,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:52,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:06:52,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:52,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:06:52,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:06:52,665 INFO L87 Difference]: Start difference. First operand 365 states and 524 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:55,185 INFO L93 Difference]: Finished difference Result 793 states and 1124 transitions. [2024-12-02 06:06:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:06:55,185 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 148 [2024-12-02 06:06:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:55,187 INFO L225 Difference]: With dead ends: 793 [2024-12-02 06:06:55,187 INFO L226 Difference]: Without dead ends: 518 [2024-12-02 06:06:55,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2024-12-02 06:06:55,189 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 390 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:55,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 679 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 06:06:55,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-12-02 06:06:55,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 406. [2024-12-02 06:06:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 334 states have (on average 1.3502994011976048) internal successors, (451), 334 states have internal predecessors, (451), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:06:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 583 transitions. [2024-12-02 06:06:55,234 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 583 transitions. Word has length 148 [2024-12-02 06:06:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:55,234 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 583 transitions. [2024-12-02 06:06:55,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:06:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 583 transitions. [2024-12-02 06:06:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 06:06:55,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:55,236 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:55,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:06:55,236 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:55,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash -732455099, now seen corresponding path program 1 times [2024-12-02 06:06:55,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:55,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407261458] [2024-12-02 06:06:55,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:55,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:07:00,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:00,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407261458] [2024-12-02 06:07:00,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407261458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:00,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:00,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 06:07:00,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339263487] [2024-12-02 06:07:00,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:00,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:07:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:00,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:07:00,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:07:00,591 INFO L87 Difference]: Start difference. First operand 406 states and 583 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:02,508 INFO L93 Difference]: Finished difference Result 694 states and 981 transitions. [2024-12-02 06:07:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:07:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 148 [2024-12-02 06:07:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:02,511 INFO L225 Difference]: With dead ends: 694 [2024-12-02 06:07:02,511 INFO L226 Difference]: Without dead ends: 512 [2024-12-02 06:07:02,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:07:02,512 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 285 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:02,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 740 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:07:02,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-12-02 06:07:02,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 398. [2024-12-02 06:07:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 326 states have (on average 1.3404907975460123) internal successors, (437), 326 states have internal predecessors, (437), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:07:02,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 569 transitions. [2024-12-02 06:07:02,557 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 569 transitions. Word has length 148 [2024-12-02 06:07:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:02,557 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 569 transitions. [2024-12-02 06:07:02,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 569 transitions. [2024-12-02 06:07:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 06:07:02,559 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:02,559 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:02,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:07:02,559 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:02,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:02,559 INFO L85 PathProgramCache]: Analyzing trace with hash -630512646, now seen corresponding path program 1 times [2024-12-02 06:07:02,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583517185] [2024-12-02 06:07:02,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:02,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:07:05,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583517185] [2024-12-02 06:07:05,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583517185] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:05,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:05,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:07:05,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226092863] [2024-12-02 06:07:05,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:05,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:07:05,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:05,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:07:05,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:07:05,185 INFO L87 Difference]: Start difference. First operand 398 states and 569 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:06,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:06,805 INFO L93 Difference]: Finished difference Result 801 states and 1144 transitions. [2024-12-02 06:07:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 06:07:06,806 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2024-12-02 06:07:06,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:06,808 INFO L225 Difference]: With dead ends: 801 [2024-12-02 06:07:06,808 INFO L226 Difference]: Without dead ends: 623 [2024-12-02 06:07:06,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:07:06,809 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 326 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:06,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 467 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:07:06,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-12-02 06:07:06,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 396. [2024-12-02 06:07:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 324 states have (on average 1.3425925925925926) internal successors, (435), 324 states have internal predecessors, (435), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:07:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 567 transitions. [2024-12-02 06:07:06,854 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 567 transitions. Word has length 149 [2024-12-02 06:07:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:06,854 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 567 transitions. [2024-12-02 06:07:06,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 567 transitions. [2024-12-02 06:07:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 06:07:06,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:06,856 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:06,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:07:06,856 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:06,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:06,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1855347538, now seen corresponding path program 1 times [2024-12-02 06:07:06,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:06,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991002651] [2024-12-02 06:07:06,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:06,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:07:13,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:13,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991002651] [2024-12-02 06:07:13,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991002651] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:13,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:13,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 06:07:13,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938263685] [2024-12-02 06:07:13,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:13,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:07:13,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:13,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:07:13,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:07:13,677 INFO L87 Difference]: Start difference. First operand 396 states and 567 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:17,748 INFO L93 Difference]: Finished difference Result 664 states and 947 transitions. [2024-12-02 06:07:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:07:17,749 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2024-12-02 06:07:17,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:17,750 INFO L225 Difference]: With dead ends: 664 [2024-12-02 06:07:17,750 INFO L226 Difference]: Without dead ends: 480 [2024-12-02 06:07:17,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:07:17,751 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 351 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:17,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 793 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 06:07:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-12-02 06:07:17,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 412. [2024-12-02 06:07:17,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 340 states have (on average 1.3441176470588236) internal successors, (457), 340 states have internal predecessors, (457), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:07:17,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 589 transitions. [2024-12-02 06:07:17,794 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 589 transitions. Word has length 149 [2024-12-02 06:07:17,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:17,794 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 589 transitions. [2024-12-02 06:07:17,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 589 transitions. [2024-12-02 06:07:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 06:07:17,795 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:17,796 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:17,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:07:17,796 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:17,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:17,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1344670766, now seen corresponding path program 1 times [2024-12-02 06:07:17,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:17,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963363530] [2024-12-02 06:07:17,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:17,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:07:21,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:21,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963363530] [2024-12-02 06:07:21,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963363530] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:21,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:21,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 06:07:21,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557778216] [2024-12-02 06:07:21,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:21,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 06:07:21,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:21,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 06:07:21,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:07:21,276 INFO L87 Difference]: Start difference. First operand 412 states and 589 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:23,220 INFO L93 Difference]: Finished difference Result 811 states and 1151 transitions. [2024-12-02 06:07:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:07:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2024-12-02 06:07:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:23,223 INFO L225 Difference]: With dead ends: 811 [2024-12-02 06:07:23,223 INFO L226 Difference]: Without dead ends: 556 [2024-12-02 06:07:23,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-12-02 06:07:23,225 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 326 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:23,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 493 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:07:23,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-12-02 06:07:23,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 416. [2024-12-02 06:07:23,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 344 states have internal predecessors, (458), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:07:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 590 transitions. [2024-12-02 06:07:23,272 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 590 transitions. Word has length 149 [2024-12-02 06:07:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:23,272 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 590 transitions. [2024-12-02 06:07:23,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:23,273 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 590 transitions. [2024-12-02 06:07:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 06:07:23,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:23,274 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:23,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:07:23,274 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:23,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:23,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1175289168, now seen corresponding path program 1 times [2024-12-02 06:07:23,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:23,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699027886] [2024-12-02 06:07:23,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:23,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:07:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:07:29,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:07:29,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699027886] [2024-12-02 06:07:29,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699027886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:07:29,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:07:29,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 06:07:29,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294640745] [2024-12-02 06:07:29,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:07:29,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:07:29,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:07:29,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:07:29,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:07:29,821 INFO L87 Difference]: Start difference. First operand 416 states and 590 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:32,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:07:32,075 INFO L93 Difference]: Finished difference Result 700 states and 976 transitions. [2024-12-02 06:07:32,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:07:32,075 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2024-12-02 06:07:32,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:07:32,077 INFO L225 Difference]: With dead ends: 700 [2024-12-02 06:07:32,077 INFO L226 Difference]: Without dead ends: 522 [2024-12-02 06:07:32,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:07:32,078 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 347 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:07:32,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 770 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 06:07:32,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-12-02 06:07:32,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 424. [2024-12-02 06:07:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 352 states have (on average 1.3238636363636365) internal successors, (466), 352 states have internal predecessors, (466), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:07:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 598 transitions. [2024-12-02 06:07:32,107 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 598 transitions. Word has length 149 [2024-12-02 06:07:32,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:07:32,107 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 598 transitions. [2024-12-02 06:07:32,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:07:32,108 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 598 transitions. [2024-12-02 06:07:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 06:07:32,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:07:32,109 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:32,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:07:32,109 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:07:32,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:07:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2107786441, now seen corresponding path program 1 times [2024-12-02 06:07:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:07:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149773072] [2024-12-02 06:07:32,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:07:32,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:07:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:30,346 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:08:30,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149773072] [2024-12-02 06:08:30,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149773072] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:08:30,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:08:30,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 06:08:30,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027319614] [2024-12-02 06:08:30,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:08:30,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 06:08:30,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:08:30,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 06:08:30,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:08:30,347 INFO L87 Difference]: Start difference. First operand 424 states and 598 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:08:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:08:31,424 INFO L93 Difference]: Finished difference Result 696 states and 946 transitions. [2024-12-02 06:08:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:08:31,425 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2024-12-02 06:08:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:08:31,427 INFO L225 Difference]: With dead ends: 696 [2024-12-02 06:08:31,427 INFO L226 Difference]: Without dead ends: 694 [2024-12-02 06:08:31,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-12-02 06:08:31,428 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 454 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:08:31,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 844 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:08:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-12-02 06:08:31,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 484. [2024-12-02 06:08:31,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 412 states have (on average 1.3179611650485437) internal successors, (543), 412 states have internal predecessors, (543), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:08:31,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 675 transitions. [2024-12-02 06:08:31,458 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 675 transitions. Word has length 150 [2024-12-02 06:08:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:08:31,458 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 675 transitions. [2024-12-02 06:08:31,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:08:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 675 transitions. [2024-12-02 06:08:31,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 06:08:31,459 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:08:31,459 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:08:31,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:08:31,459 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:08:31,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:08:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1290137991, now seen corresponding path program 1 times [2024-12-02 06:08:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:08:31,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121908363] [2024-12-02 06:08:31,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:31,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:08:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:09:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:09:32,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:09:32,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121908363] [2024-12-02 06:09:32,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121908363] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:09:32,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:09:32,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 06:09:32,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468246911] [2024-12-02 06:09:32,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:09:32,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:09:32,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:09:32,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:09:32,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:09:32,676 INFO L87 Difference]: Start difference. First operand 484 states and 675 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 06:09:33,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:09:33,593 INFO L93 Difference]: Finished difference Result 717 states and 971 transitions. [2024-12-02 06:09:33,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:09:33,593 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 150 [2024-12-02 06:09:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:09:33,595 INFO L225 Difference]: With dead ends: 717 [2024-12-02 06:09:33,595 INFO L226 Difference]: Without dead ends: 715 [2024-12-02 06:09:33,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:09:33,596 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 254 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:09:33,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1347 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:09:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-12-02 06:09:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 541. [2024-12-02 06:09:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 469 states have (on average 1.302771855010661) internal successors, (611), 469 states have internal predecessors, (611), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:09:33,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 743 transitions. [2024-12-02 06:09:33,627 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 743 transitions. Word has length 150 [2024-12-02 06:09:33,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:09:33,628 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 743 transitions. [2024-12-02 06:09:33,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 06:09:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 743 transitions. [2024-12-02 06:09:33,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 06:09:33,629 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:09:33,629 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:33,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:09:33,629 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:09:33,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:09:33,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1764479029, now seen corresponding path program 1 times [2024-12-02 06:09:33,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:09:33,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121242582] [2024-12-02 06:09:33,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:09:33,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:09:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:09:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:09:33,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:09:33,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121242582] [2024-12-02 06:09:33,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121242582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:09:33,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:09:33,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:09:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020398517] [2024-12-02 06:09:33,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:09:33,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:09:33,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:09:33,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:09:33,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:09:33,738 INFO L87 Difference]: Start difference. First operand 541 states and 743 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:09:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:09:33,890 INFO L93 Difference]: Finished difference Result 931 states and 1287 transitions. [2024-12-02 06:09:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:09:33,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2024-12-02 06:09:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:09:33,893 INFO L225 Difference]: With dead ends: 931 [2024-12-02 06:09:33,893 INFO L226 Difference]: Without dead ends: 568 [2024-12-02 06:09:33,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:09:33,894 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 98 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:09:33,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 467 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:09:33,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-12-02 06:09:33,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 544. [2024-12-02 06:09:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 472 states have (on average 1.3008474576271187) internal successors, (614), 472 states have internal predecessors, (614), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:09:33,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 746 transitions. [2024-12-02 06:09:33,924 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 746 transitions. Word has length 150 [2024-12-02 06:09:33,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:09:33,924 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 746 transitions. [2024-12-02 06:09:33,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:09:33,924 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 746 transitions. [2024-12-02 06:09:33,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 06:09:33,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:09:33,925 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:33,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:09:33,925 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:09:33,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:09:33,926 INFO L85 PathProgramCache]: Analyzing trace with hash -618114640, now seen corresponding path program 1 times [2024-12-02 06:09:33,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:09:33,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114076232] [2024-12-02 06:09:33,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:09:33,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:09:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:09:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:09:41,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:09:41,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114076232] [2024-12-02 06:09:41,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114076232] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:09:41,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:09:41,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 06:09:41,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694725384] [2024-12-02 06:09:41,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:09:41,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 06:09:41,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:09:41,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 06:09:41,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:09:41,862 INFO L87 Difference]: Start difference. First operand 544 states and 746 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:09:43,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:09:43,914 INFO L93 Difference]: Finished difference Result 850 states and 1167 transitions. [2024-12-02 06:09:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:09:43,914 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2024-12-02 06:09:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:09:43,916 INFO L225 Difference]: With dead ends: 850 [2024-12-02 06:09:43,916 INFO L226 Difference]: Without dead ends: 660 [2024-12-02 06:09:43,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2024-12-02 06:09:43,916 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 200 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:09:43,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 768 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 06:09:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-12-02 06:09:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 522. [2024-12-02 06:09:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 450 states have (on average 1.2977777777777777) internal successors, (584), 450 states have internal predecessors, (584), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:09:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 716 transitions. [2024-12-02 06:09:43,946 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 716 transitions. Word has length 150 [2024-12-02 06:09:43,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:09:43,946 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 716 transitions. [2024-12-02 06:09:43,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:09:43,946 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 716 transitions. [2024-12-02 06:09:43,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 06:09:43,947 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:09:43,947 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:43,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:09:43,947 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:09:43,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:09:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash 172609364, now seen corresponding path program 1 times [2024-12-02 06:09:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:09:43,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292553717] [2024-12-02 06:09:43,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:09:43,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:09:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:09:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:09:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:09:46,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292553717] [2024-12-02 06:09:46,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292553717] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:09:46,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:09:46,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 06:09:46,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406835379] [2024-12-02 06:09:46,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:09:46,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 06:09:46,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:09:46,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 06:09:46,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:09:46,425 INFO L87 Difference]: Start difference. First operand 522 states and 716 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:09:47,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:09:47,971 INFO L93 Difference]: Finished difference Result 853 states and 1182 transitions. [2024-12-02 06:09:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 06:09:47,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2024-12-02 06:09:47,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:09:47,974 INFO L225 Difference]: With dead ends: 853 [2024-12-02 06:09:47,974 INFO L226 Difference]: Without dead ends: 675 [2024-12-02 06:09:47,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:09:47,975 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 348 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:09:47,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 536 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:09:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-12-02 06:09:48,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 526. [2024-12-02 06:09:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 454 states have (on average 1.2995594713656389) internal successors, (590), 454 states have internal predecessors, (590), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:09:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 722 transitions. [2024-12-02 06:09:48,020 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 722 transitions. Word has length 150 [2024-12-02 06:09:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:09:48,021 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 722 transitions. [2024-12-02 06:09:48,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:09:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 722 transitions. [2024-12-02 06:09:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 06:09:48,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:09:48,022 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:48,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 06:09:48,023 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:09:48,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:09:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 360968841, now seen corresponding path program 1 times [2024-12-02 06:09:48,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:09:48,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148082774] [2024-12-02 06:09:48,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:09:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:09:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:10:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:10:44,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:10:44,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148082774] [2024-12-02 06:10:44,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148082774] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:10:44,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:10:44,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 06:10:44,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952017986] [2024-12-02 06:10:44,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:10:44,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 06:10:44,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:10:44,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 06:10:44,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:10:44,409 INFO L87 Difference]: Start difference. First operand 526 states and 722 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:10:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:10:46,399 INFO L93 Difference]: Finished difference Result 736 states and 984 transitions. [2024-12-02 06:10:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:10:46,400 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 151 [2024-12-02 06:10:46,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:10:46,402 INFO L225 Difference]: With dead ends: 736 [2024-12-02 06:10:46,402 INFO L226 Difference]: Without dead ends: 734 [2024-12-02 06:10:46,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 06:10:46,402 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 553 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:10:46,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 678 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 06:10:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-12-02 06:10:46,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 547. [2024-12-02 06:10:46,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 475 states have (on average 1.3073684210526315) internal successors, (621), 475 states have internal predecessors, (621), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:10:46,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 753 transitions. [2024-12-02 06:10:46,442 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 753 transitions. Word has length 151 [2024-12-02 06:10:46,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:10:46,442 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 753 transitions. [2024-12-02 06:10:46,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:10:46,442 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 753 transitions. [2024-12-02 06:10:46,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 06:10:46,443 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:10:46,443 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:46,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:10:46,444 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:10:46,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:10:46,444 INFO L85 PathProgramCache]: Analyzing trace with hash -650148409, now seen corresponding path program 1 times [2024-12-02 06:10:46,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:10:46,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16297920] [2024-12-02 06:10:46,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:10:46,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:10:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:10:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:10:46,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:10:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16297920] [2024-12-02 06:10:46,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16297920] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:10:46,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:10:46,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:10:46,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350733867] [2024-12-02 06:10:46,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:10:46,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:10:46,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:10:46,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:10:46,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:10:46,515 INFO L87 Difference]: Start difference. First operand 547 states and 753 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:10:46,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:10:46,568 INFO L93 Difference]: Finished difference Result 880 states and 1220 transitions. [2024-12-02 06:10:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:10:46,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 06:10:46,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:10:46,571 INFO L225 Difference]: With dead ends: 880 [2024-12-02 06:10:46,571 INFO L226 Difference]: Without dead ends: 602 [2024-12-02 06:10:46,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 06:10:46,573 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 10 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 226 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 06:10:46,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 226 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:10:46,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-12-02 06:10:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 547. [2024-12-02 06:10:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 475 states have (on average 1.2842105263157895) internal successors, (610), 475 states have internal predecessors, (610), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:10:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 742 transitions. [2024-12-02 06:10:46,605 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 742 transitions. Word has length 151 [2024-12-02 06:10:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:10:46,605 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 742 transitions. [2024-12-02 06:10:46,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:10:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 742 transitions. [2024-12-02 06:10:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 06:10:46,606 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:10:46,606 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:46,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:10:46,607 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:10:46,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:10:46,607 INFO L85 PathProgramCache]: Analyzing trace with hash 783670667, now seen corresponding path program 1 times [2024-12-02 06:10:46,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:10:46,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622157009] [2024-12-02 06:10:46,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:10:46,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:10:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:11:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:11:38,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:11:38,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622157009] [2024-12-02 06:11:38,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622157009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:11:38,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:11:38,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 06:11:38,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735104689] [2024-12-02 06:11:38,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:11:38,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 06:11:38,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:11:38,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 06:11:38,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:11:38,271 INFO L87 Difference]: Start difference. First operand 547 states and 742 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:11:40,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:11:40,534 INFO L93 Difference]: Finished difference Result 710 states and 933 transitions. [2024-12-02 06:11:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:11:40,534 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 151 [2024-12-02 06:11:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:11:40,536 INFO L225 Difference]: With dead ends: 710 [2024-12-02 06:11:40,536 INFO L226 Difference]: Without dead ends: 708 [2024-12-02 06:11:40,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:11:40,536 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 285 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:11:40,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 775 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 06:11:40,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-12-02 06:11:40,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 568. [2024-12-02 06:11:40,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 496 states have (on average 1.2862903225806452) internal successors, (638), 496 states have internal predecessors, (638), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:11:40,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 770 transitions. [2024-12-02 06:11:40,566 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 770 transitions. Word has length 151 [2024-12-02 06:11:40,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:11:40,566 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 770 transitions. [2024-12-02 06:11:40,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:11:40,566 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 770 transitions. [2024-12-02 06:11:40,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 06:11:40,567 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:11:40,567 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:40,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:11:40,567 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:11:40,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:11:40,568 INFO L85 PathProgramCache]: Analyzing trace with hash -565002023, now seen corresponding path program 1 times [2024-12-02 06:11:40,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:11:40,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782528090] [2024-12-02 06:11:40,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:11:40,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:11:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:11:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:11:44,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:11:44,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782528090] [2024-12-02 06:11:44,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782528090] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:11:44,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:11:44,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 06:11:44,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771441365] [2024-12-02 06:11:44,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:11:44,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:11:44,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:11:44,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:11:44,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:11:44,506 INFO L87 Difference]: Start difference. First operand 568 states and 770 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:11:51,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:11:51,383 INFO L93 Difference]: Finished difference Result 903 states and 1241 transitions. [2024-12-02 06:11:51,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 06:11:51,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 06:11:51,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:11:51,386 INFO L225 Difference]: With dead ends: 903 [2024-12-02 06:11:51,386 INFO L226 Difference]: Without dead ends: 721 [2024-12-02 06:11:51,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2024-12-02 06:11:51,387 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 182 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:11:51,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 541 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:11:51,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-12-02 06:11:51,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 558. [2024-12-02 06:11:51,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 486 states have (on average 1.2798353909465021) internal successors, (622), 486 states have internal predecessors, (622), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:11:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 754 transitions. [2024-12-02 06:11:51,418 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 754 transitions. Word has length 151 [2024-12-02 06:11:51,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:11:51,418 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 754 transitions. [2024-12-02 06:11:51,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:11:51,418 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 754 transitions. [2024-12-02 06:11:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 06:11:51,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:11:51,419 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:11:51,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:11:51,419 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:11:51,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:11:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash 115056347, now seen corresponding path program 1 times [2024-12-02 06:11:51,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:11:51,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857890193] [2024-12-02 06:11:51,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:11:51,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:11:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:02,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:02,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857890193] [2024-12-02 06:12:02,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857890193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:02,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:02,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 06:12:02,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817838808] [2024-12-02 06:12:02,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:02,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:12:02,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:02,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:12:02,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:12:02,212 INFO L87 Difference]: Start difference. First operand 558 states and 754 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:06,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:06,283 INFO L93 Difference]: Finished difference Result 976 states and 1302 transitions. [2024-12-02 06:12:06,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 06:12:06,284 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 06:12:06,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:06,286 INFO L225 Difference]: With dead ends: 976 [2024-12-02 06:12:06,286 INFO L226 Difference]: Without dead ends: 778 [2024-12-02 06:12:06,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2024-12-02 06:12:06,287 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 307 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:06,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 700 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 06:12:06,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-12-02 06:12:06,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 577. [2024-12-02 06:12:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 505 states have (on average 1.2811881188118812) internal successors, (647), 505 states have internal predecessors, (647), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 779 transitions. [2024-12-02 06:12:06,321 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 779 transitions. Word has length 151 [2024-12-02 06:12:06,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:06,321 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 779 transitions. [2024-12-02 06:12:06,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 779 transitions. [2024-12-02 06:12:06,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 06:12:06,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:06,322 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:06,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:12:06,322 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:06,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:06,323 INFO L85 PathProgramCache]: Analyzing trace with hash -393746371, now seen corresponding path program 1 times [2024-12-02 06:12:06,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:06,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833983285] [2024-12-02 06:12:06,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:06,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:06,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:06,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833983285] [2024-12-02 06:12:06,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833983285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:06,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:06,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:12:06,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242620810] [2024-12-02 06:12:06,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:06,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:12:06,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:06,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:12:06,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:12:06,743 INFO L87 Difference]: Start difference. First operand 577 states and 779 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:07,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:07,374 INFO L93 Difference]: Finished difference Result 854 states and 1161 transitions. [2024-12-02 06:12:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:12:07,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 06:12:07,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:07,377 INFO L225 Difference]: With dead ends: 854 [2024-12-02 06:12:07,377 INFO L226 Difference]: Without dead ends: 654 [2024-12-02 06:12:07,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:12:07,378 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 143 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:07,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 418 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:12:07,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-12-02 06:12:07,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 614. [2024-12-02 06:12:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 542 states have (on average 1.2730627306273063) internal successors, (690), 542 states have internal predecessors, (690), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 822 transitions. [2024-12-02 06:12:07,433 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 822 transitions. Word has length 152 [2024-12-02 06:12:07,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:07,433 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 822 transitions. [2024-12-02 06:12:07,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:07,433 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 822 transitions. [2024-12-02 06:12:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 06:12:07,434 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:07,434 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:07,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 06:12:07,434 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:07,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:07,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1721993793, now seen corresponding path program 1 times [2024-12-02 06:12:07,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:07,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485709231] [2024-12-02 06:12:07,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:07,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:07,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:07,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485709231] [2024-12-02 06:12:07,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485709231] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:07,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:07,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:12:07,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962131894] [2024-12-02 06:12:07,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:07,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:12:07,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:07,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:12:07,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:12:07,669 INFO L87 Difference]: Start difference. First operand 614 states and 822 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:08,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:08,006 INFO L93 Difference]: Finished difference Result 926 states and 1248 transitions. [2024-12-02 06:12:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:12:08,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 06:12:08,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:08,008 INFO L225 Difference]: With dead ends: 926 [2024-12-02 06:12:08,008 INFO L226 Difference]: Without dead ends: 641 [2024-12-02 06:12:08,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:12:08,009 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 98 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:08,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 334 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:12:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-12-02 06:12:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 613. [2024-12-02 06:12:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 541 states have (on average 1.2717190388170057) internal successors, (688), 541 states have internal predecessors, (688), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 820 transitions. [2024-12-02 06:12:08,043 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 820 transitions. Word has length 152 [2024-12-02 06:12:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:08,043 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 820 transitions. [2024-12-02 06:12:08,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 820 transitions. [2024-12-02 06:12:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 06:12:08,044 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:08,044 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:08,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 06:12:08,044 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:08,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:08,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1711098048, now seen corresponding path program 1 times [2024-12-02 06:12:08,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:08,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015006345] [2024-12-02 06:12:08,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:08,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:08,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:08,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015006345] [2024-12-02 06:12:08,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015006345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:08,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:08,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:12:08,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574178172] [2024-12-02 06:12:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:08,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:12:08,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:08,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:12:08,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:12:08,104 INFO L87 Difference]: Start difference. First operand 613 states and 820 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:08,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:08,217 INFO L93 Difference]: Finished difference Result 915 states and 1256 transitions. [2024-12-02 06:12:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:12:08,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 154 [2024-12-02 06:12:08,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:08,219 INFO L225 Difference]: With dead ends: 915 [2024-12-02 06:12:08,219 INFO L226 Difference]: Without dead ends: 631 [2024-12-02 06:12:08,220 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 06:12:08,220 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 40 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:08,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 219 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:12:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-12-02 06:12:08,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 575. [2024-12-02 06:12:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 503 states have (on average 1.3021868787276343) internal successors, (655), 503 states have internal predecessors, (655), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 787 transitions. [2024-12-02 06:12:08,254 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 787 transitions. Word has length 154 [2024-12-02 06:12:08,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:08,255 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 787 transitions. [2024-12-02 06:12:08,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 787 transitions. [2024-12-02 06:12:08,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 06:12:08,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:08,255 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:08,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 06:12:08,256 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:08,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:08,256 INFO L85 PathProgramCache]: Analyzing trace with hash 721053044, now seen corresponding path program 1 times [2024-12-02 06:12:08,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:08,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185063767] [2024-12-02 06:12:08,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:08,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:08,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:08,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185063767] [2024-12-02 06:12:08,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185063767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:08,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:08,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:12:08,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198292134] [2024-12-02 06:12:08,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:08,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:12:08,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:08,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:12:08,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:12:08,446 INFO L87 Difference]: Start difference. First operand 575 states and 787 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:08,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:08,935 INFO L93 Difference]: Finished difference Result 934 states and 1282 transitions. [2024-12-02 06:12:08,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:12:08,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-12-02 06:12:08,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:08,938 INFO L225 Difference]: With dead ends: 934 [2024-12-02 06:12:08,938 INFO L226 Difference]: Without dead ends: 660 [2024-12-02 06:12:08,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:12:08,939 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:08,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 524 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:12:08,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-12-02 06:12:08,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 612. [2024-12-02 06:12:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 540 states have (on average 1.2962962962962963) internal successors, (700), 540 states have internal predecessors, (700), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 832 transitions. [2024-12-02 06:12:08,974 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 832 transitions. Word has length 155 [2024-12-02 06:12:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:08,974 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 832 transitions. [2024-12-02 06:12:08,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 832 transitions. [2024-12-02 06:12:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 06:12:08,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:08,975 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:08,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 06:12:08,975 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:08,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:08,975 INFO L85 PathProgramCache]: Analyzing trace with hash 487789952, now seen corresponding path program 1 times [2024-12-02 06:12:08,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:08,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253979416] [2024-12-02 06:12:08,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:08,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:09,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:09,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253979416] [2024-12-02 06:12:09,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253979416] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:09,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:09,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:12:09,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080748429] [2024-12-02 06:12:09,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:09,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:12:09,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:09,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:12:09,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:12:09,169 INFO L87 Difference]: Start difference. First operand 612 states and 832 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:09,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:09,682 INFO L93 Difference]: Finished difference Result 940 states and 1287 transitions. [2024-12-02 06:12:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:12:09,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-12-02 06:12:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:09,687 INFO L225 Difference]: With dead ends: 940 [2024-12-02 06:12:09,687 INFO L226 Difference]: Without dead ends: 662 [2024-12-02 06:12:09,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:12:09,688 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 121 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:09,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 539 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:12:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-12-02 06:12:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 573. [2024-12-02 06:12:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 501 states have (on average 1.2954091816367266) internal successors, (649), 501 states have internal predecessors, (649), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 781 transitions. [2024-12-02 06:12:09,724 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 781 transitions. Word has length 155 [2024-12-02 06:12:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:09,724 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 781 transitions. [2024-12-02 06:12:09,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 781 transitions. [2024-12-02 06:12:09,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 06:12:09,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:09,725 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:09,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 06:12:09,725 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:09,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash -959594268, now seen corresponding path program 1 times [2024-12-02 06:12:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038245527] [2024-12-02 06:12:09,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:13,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:13,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038245527] [2024-12-02 06:12:13,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038245527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:13,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:13,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 06:12:13,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221202026] [2024-12-02 06:12:13,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:13,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 06:12:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:13,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 06:12:13,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:12:13,585 INFO L87 Difference]: Start difference. First operand 573 states and 781 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:15,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:15,974 INFO L93 Difference]: Finished difference Result 1155 states and 1582 transitions. [2024-12-02 06:12:15,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:12:15,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-12-02 06:12:15,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:15,977 INFO L225 Difference]: With dead ends: 1155 [2024-12-02 06:12:15,977 INFO L226 Difference]: Without dead ends: 885 [2024-12-02 06:12:15,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:12:15,977 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 182 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:15,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 675 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:12:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-12-02 06:12:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 570. [2024-12-02 06:12:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 498 states have (on average 1.3012048192771084) internal successors, (648), 498 states have internal predecessors, (648), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 780 transitions. [2024-12-02 06:12:16,013 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 780 transitions. Word has length 155 [2024-12-02 06:12:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:16,014 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 780 transitions. [2024-12-02 06:12:16,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 780 transitions. [2024-12-02 06:12:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 06:12:16,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:16,015 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:16,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 06:12:16,015 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:16,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:16,015 INFO L85 PathProgramCache]: Analyzing trace with hash 757404679, now seen corresponding path program 1 times [2024-12-02 06:12:16,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:16,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681517474] [2024-12-02 06:12:16,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:16,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:16,168 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:16,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:16,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681517474] [2024-12-02 06:12:16,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681517474] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:16,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:16,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:12:16,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723337873] [2024-12-02 06:12:16,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:16,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:12:16,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:16,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:12:16,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:12:16,170 INFO L87 Difference]: Start difference. First operand 570 states and 780 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:16,499 INFO L93 Difference]: Finished difference Result 910 states and 1262 transitions. [2024-12-02 06:12:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:12:16,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 158 [2024-12-02 06:12:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:16,501 INFO L225 Difference]: With dead ends: 910 [2024-12-02 06:12:16,501 INFO L226 Difference]: Without dead ends: 557 [2024-12-02 06:12:16,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:12:16,502 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 88 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:16,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 354 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:12:16,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-02 06:12:16,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 523. [2024-12-02 06:12:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 451 states have (on average 1.310421286031042) internal successors, (591), 451 states have internal predecessors, (591), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 723 transitions. [2024-12-02 06:12:16,544 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 723 transitions. Word has length 158 [2024-12-02 06:12:16,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:16,544 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 723 transitions. [2024-12-02 06:12:16,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:16,545 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 723 transitions. [2024-12-02 06:12:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 06:12:16,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:16,546 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:16,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 06:12:16,546 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:16,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1904991066, now seen corresponding path program 1 times [2024-12-02 06:12:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:16,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671798444] [2024-12-02 06:12:16,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:16,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:12:18,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:18,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671798444] [2024-12-02 06:12:18,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671798444] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:18,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:18,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 06:12:18,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119687583] [2024-12-02 06:12:18,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:18,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 06:12:18,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:18,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 06:12:18,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:12:18,471 INFO L87 Difference]: Start difference. First operand 523 states and 723 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:19,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:19,747 INFO L93 Difference]: Finished difference Result 909 states and 1256 transitions. [2024-12-02 06:12:19,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:12:19,748 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 158 [2024-12-02 06:12:19,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:19,749 INFO L225 Difference]: With dead ends: 909 [2024-12-02 06:12:19,749 INFO L226 Difference]: Without dead ends: 603 [2024-12-02 06:12:19,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:12:19,750 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 348 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:19,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 569 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:12:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-12-02 06:12:19,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 545. [2024-12-02 06:12:19,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 473 states have (on average 1.2959830866807611) internal successors, (613), 473 states have internal predecessors, (613), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:12:19,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 745 transitions. [2024-12-02 06:12:19,787 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 745 transitions. Word has length 158 [2024-12-02 06:12:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:19,788 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 745 transitions. [2024-12-02 06:12:19,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:12:19,788 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 745 transitions. [2024-12-02 06:12:19,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 06:12:19,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:19,788 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:12:19,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 06:12:19,789 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:19,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1368907876, now seen corresponding path program 1 times [2024-12-02 06:12:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:19,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482624037] [2024-12-02 06:12:19,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:19,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:13:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:13:13,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:13:13,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482624037] [2024-12-02 06:13:13,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482624037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:13:13,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:13:13,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 06:13:13,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525202140] [2024-12-02 06:13:13,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:13:13,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 06:13:13,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:13:13,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 06:13:13,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:13:13,567 INFO L87 Difference]: Start difference. First operand 545 states and 745 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:13:19,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:13:19,677 INFO L93 Difference]: Finished difference Result 737 states and 956 transitions. [2024-12-02 06:13:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 06:13:19,678 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 158 [2024-12-02 06:13:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:13:19,679 INFO L225 Difference]: With dead ends: 737 [2024-12-02 06:13:19,679 INFO L226 Difference]: Without dead ends: 735 [2024-12-02 06:13:19,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=380, Invalid=1690, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 06:13:19,680 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 482 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:13:19,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 707 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 06:13:19,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-12-02 06:13:19,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 568. [2024-12-02 06:13:19,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 496 states have (on average 1.2943548387096775) internal successors, (642), 496 states have internal predecessors, (642), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:13:19,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 774 transitions. [2024-12-02 06:13:19,720 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 774 transitions. Word has length 158 [2024-12-02 06:13:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:13:19,720 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 774 transitions. [2024-12-02 06:13:19,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:13:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 774 transitions. [2024-12-02 06:13:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 06:13:19,721 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:13:19,721 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:13:19,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 06:13:19,721 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:13:19,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:13:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1430947490, now seen corresponding path program 1 times [2024-12-02 06:13:19,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:13:19,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140352147] [2024-12-02 06:13:19,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:13:19,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:13:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:14:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:14:09,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:14:09,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140352147] [2024-12-02 06:14:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140352147] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:14:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:14:09,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 06:14:09,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545151815] [2024-12-02 06:14:09,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:14:09,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 06:14:09,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:14:09,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 06:14:09,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:14:09,435 INFO L87 Difference]: Start difference. First operand 568 states and 774 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:14:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:14:15,754 INFO L93 Difference]: Finished difference Result 788 states and 1012 transitions. [2024-12-02 06:14:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 06:14:15,755 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 158 [2024-12-02 06:14:15,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:14:15,756 INFO L225 Difference]: With dead ends: 788 [2024-12-02 06:14:15,756 INFO L226 Difference]: Without dead ends: 786 [2024-12-02 06:14:15,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=376, Invalid=1516, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 06:14:15,757 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 429 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:14:15,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 675 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 06:14:15,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-12-02 06:14:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 590. [2024-12-02 06:14:15,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 518 states have (on average 1.2895752895752897) internal successors, (668), 518 states have internal predecessors, (668), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:14:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 800 transitions. [2024-12-02 06:14:15,800 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 800 transitions. Word has length 158 [2024-12-02 06:14:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:14:15,800 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 800 transitions. [2024-12-02 06:14:15,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:14:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 800 transitions. [2024-12-02 06:14:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 06:14:15,801 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:14:15,801 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:14:15,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 06:14:15,801 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:14:15,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:14:15,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1213664744, now seen corresponding path program 1 times [2024-12-02 06:14:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:14:15,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262145692] [2024-12-02 06:14:15,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:14:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:14:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:14:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:14:16,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:14:16,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262145692] [2024-12-02 06:14:16,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262145692] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:14:16,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:14:16,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 06:14:16,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28073583] [2024-12-02 06:14:16,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:14:16,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:14:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:14:16,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:14:16,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:14:16,458 INFO L87 Difference]: Start difference. First operand 590 states and 800 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:14:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:14:17,847 INFO L93 Difference]: Finished difference Result 952 states and 1305 transitions. [2024-12-02 06:14:17,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:14:17,848 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 158 [2024-12-02 06:14:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:14:17,849 INFO L225 Difference]: With dead ends: 952 [2024-12-02 06:14:17,849 INFO L226 Difference]: Without dead ends: 634 [2024-12-02 06:14:17,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:14:17,850 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 186 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:14:17,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 784 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:14:17,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-12-02 06:14:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 586. [2024-12-02 06:14:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 514 states have (on average 1.2879377431906616) internal successors, (662), 514 states have internal predecessors, (662), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:14:17,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 794 transitions. [2024-12-02 06:14:17,891 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 794 transitions. Word has length 158 [2024-12-02 06:14:17,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:14:17,891 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 794 transitions. [2024-12-02 06:14:17,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:14:17,892 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 794 transitions. [2024-12-02 06:14:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 06:14:17,892 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:14:17,892 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:14:17,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 06:14:17,892 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:14:17,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:14:17,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1223053438, now seen corresponding path program 1 times [2024-12-02 06:14:17,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:14:17,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481047437] [2024-12-02 06:14:17,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:14:17,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:14:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:15:14,564 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:15:14,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:15:14,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481047437] [2024-12-02 06:15:14,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481047437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:15:14,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:15:14,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 06:15:14,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653066144] [2024-12-02 06:15:14,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:15:14,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 06:15:14,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:15:14,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 06:15:14,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2024-12-02 06:15:14,565 INFO L87 Difference]: Start difference. First operand 586 states and 794 transitions. Second operand has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:15:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:15:25,283 INFO L93 Difference]: Finished difference Result 730 states and 948 transitions. [2024-12-02 06:15:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 06:15:25,284 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 159 [2024-12-02 06:15:25,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:15:25,285 INFO L225 Difference]: With dead ends: 730 [2024-12-02 06:15:25,285 INFO L226 Difference]: Without dead ends: 728 [2024-12-02 06:15:25,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 06:15:25,286 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 332 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:15:25,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 920 Invalid, 1881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 06:15:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-12-02 06:15:25,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 590. [2024-12-02 06:15:25,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 518 states have (on average 1.2876447876447876) internal successors, (667), 518 states have internal predecessors, (667), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:15:25,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 799 transitions. [2024-12-02 06:15:25,331 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 799 transitions. Word has length 159 [2024-12-02 06:15:25,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:15:25,331 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 799 transitions. [2024-12-02 06:15:25,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:15:25,332 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 799 transitions. [2024-12-02 06:15:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 06:15:25,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:15:25,332 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:15:25,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 06:15:25,332 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:15:25,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:15:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1148685824, now seen corresponding path program 1 times [2024-12-02 06:15:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:15:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466440221] [2024-12-02 06:15:25,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:15:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:15:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:16:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:16:26,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:16:26,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466440221] [2024-12-02 06:16:26,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466440221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:16:26,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:16:26,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 06:16:26,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060194801] [2024-12-02 06:16:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:16:26,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 06:16:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:16:26,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 06:16:26,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:16:26,043 INFO L87 Difference]: Start difference. First operand 590 states and 799 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:16:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:16:35,732 INFO L93 Difference]: Finished difference Result 762 states and 981 transitions. [2024-12-02 06:16:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 06:16:35,733 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 159 [2024-12-02 06:16:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:16:35,734 INFO L225 Difference]: With dead ends: 762 [2024-12-02 06:16:35,734 INFO L226 Difference]: Without dead ends: 760 [2024-12-02 06:16:35,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=471, Invalid=1881, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 06:16:35,735 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 416 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:16:35,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 722 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 06:16:35,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-12-02 06:16:35,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 594. [2024-12-02 06:16:35,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 522 states have (on average 1.2873563218390804) internal successors, (672), 522 states have internal predecessors, (672), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:16:35,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 804 transitions. [2024-12-02 06:16:35,778 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 804 transitions. Word has length 159 [2024-12-02 06:16:35,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:16:35,778 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 804 transitions. [2024-12-02 06:16:35,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:16:35,779 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 804 transitions. [2024-12-02 06:16:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 06:16:35,779 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:16:35,780 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:16:35,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 06:16:35,780 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:16:35,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:16:35,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1404693957, now seen corresponding path program 1 times [2024-12-02 06:16:35,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:16:35,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624786624] [2024-12-02 06:16:35,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:16:35,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:16:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:17:29,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624786624] [2024-12-02 06:17:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624786624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:29,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:29,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 06:17:29,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615172846] [2024-12-02 06:17:29,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:29,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 06:17:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:29,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 06:17:29,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:17:29,953 INFO L87 Difference]: Start difference. First operand 594 states and 804 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:17:35,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:35,892 INFO L93 Difference]: Finished difference Result 697 states and 911 transitions. [2024-12-02 06:17:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 06:17:35,892 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 162 [2024-12-02 06:17:35,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:35,894 INFO L225 Difference]: With dead ends: 697 [2024-12-02 06:17:35,894 INFO L226 Difference]: Without dead ends: 695 [2024-12-02 06:17:35,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 06:17:35,895 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 385 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:35,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 916 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 06:17:35,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-12-02 06:17:35,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 592. [2024-12-02 06:17:35,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 520 states have (on average 1.2884615384615385) internal successors, (670), 520 states have internal predecessors, (670), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:17:35,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 802 transitions. [2024-12-02 06:17:35,938 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 802 transitions. Word has length 162 [2024-12-02 06:17:35,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:35,938 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 802 transitions. [2024-12-02 06:17:35,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:17:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 802 transitions. [2024-12-02 06:17:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 06:17:35,939 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:35,940 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:35,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 06:17:35,940 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:35,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:35,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1342654343, now seen corresponding path program 1 times [2024-12-02 06:17:35,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:35,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257324116] [2024-12-02 06:17:35,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:35,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:18:29,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:29,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257324116] [2024-12-02 06:18:29,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257324116] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:29,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:29,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 06:18:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094796005] [2024-12-02 06:18:29,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:29,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 06:18:29,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:29,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 06:18:29,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:18:29,928 INFO L87 Difference]: Start difference. First operand 592 states and 802 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:18:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:34,761 INFO L93 Difference]: Finished difference Result 722 states and 940 transitions. [2024-12-02 06:18:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 06:18:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 162 [2024-12-02 06:18:34,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:34,763 INFO L225 Difference]: With dead ends: 722 [2024-12-02 06:18:34,763 INFO L226 Difference]: Without dead ends: 720 [2024-12-02 06:18:34,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:18:34,764 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 340 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:34,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 872 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 06:18:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-12-02 06:18:34,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 590. [2024-12-02 06:18:34,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 518 states have (on average 1.2895752895752897) internal successors, (668), 518 states have internal predecessors, (668), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:18:34,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 800 transitions. [2024-12-02 06:18:34,816 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 800 transitions. Word has length 162 [2024-12-02 06:18:34,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:34,816 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 800 transitions. [2024-12-02 06:18:34,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:18:34,816 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 800 transitions. [2024-12-02 06:18:34,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 06:18:34,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:34,817 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:18:34,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 06:18:34,817 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:34,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:34,817 INFO L85 PathProgramCache]: Analyzing trace with hash 518534077, now seen corresponding path program 1 times [2024-12-02 06:18:34,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:34,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478620063] [2024-12-02 06:18:34,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:34,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:18:35,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:35,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478620063] [2024-12-02 06:18:35,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478620063] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:35,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:35,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:18:35,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399100708] [2024-12-02 06:18:35,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:35,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:18:35,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:35,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:18:35,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:18:35,343 INFO L87 Difference]: Start difference. First operand 590 states and 800 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:18:36,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:36,262 INFO L93 Difference]: Finished difference Result 976 states and 1332 transitions. [2024-12-02 06:18:36,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:18:36,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 162 [2024-12-02 06:18:36,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:36,266 INFO L225 Difference]: With dead ends: 976 [2024-12-02 06:18:36,266 INFO L226 Difference]: Without dead ends: 629 [2024-12-02 06:18:36,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:18:36,267 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 125 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:36,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 573 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:18:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-12-02 06:18:36,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 549. [2024-12-02 06:18:36,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 477 states have (on average 1.2955974842767295) internal successors, (618), 477 states have internal predecessors, (618), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:18:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 750 transitions. [2024-12-02 06:18:36,312 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 750 transitions. Word has length 162 [2024-12-02 06:18:36,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:36,312 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 750 transitions. [2024-12-02 06:18:36,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 06:18:36,312 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 750 transitions. [2024-12-02 06:18:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 06:18:36,313 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:36,313 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:18:36,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 06:18:36,313 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:36,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1140742535, now seen corresponding path program 1 times [2024-12-02 06:18:36,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:36,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469951319] [2024-12-02 06:18:36,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:36,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:19:31,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:31,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469951319] [2024-12-02 06:19:31,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469951319] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:31,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:31,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 06:19:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190256272] [2024-12-02 06:19:31,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:31,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:19:31,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:31,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:19:31,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:19:31,374 INFO L87 Difference]: Start difference. First operand 549 states and 750 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:19:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:36,290 INFO L93 Difference]: Finished difference Result 643 states and 850 transitions. [2024-12-02 06:19:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 06:19:36,291 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 163 [2024-12-02 06:19:36,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:36,293 INFO L225 Difference]: With dead ends: 643 [2024-12-02 06:19:36,293 INFO L226 Difference]: Without dead ends: 641 [2024-12-02 06:19:36,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=227, Invalid=895, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 06:19:36,294 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 371 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:36,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 836 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 06:19:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-12-02 06:19:36,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 529. [2024-12-02 06:19:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 457 states have (on average 1.2954048140043763) internal successors, (592), 457 states have internal predecessors, (592), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:19:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 724 transitions. [2024-12-02 06:19:36,340 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 724 transitions. Word has length 163 [2024-12-02 06:19:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:36,340 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 724 transitions. [2024-12-02 06:19:36,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:19:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 724 transitions. [2024-12-02 06:19:36,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 06:19:36,340 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:36,340 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:19:36,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 06:19:36,341 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:36,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:36,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1230996727, now seen corresponding path program 1 times [2024-12-02 06:19:36,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:36,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631660963] [2024-12-02 06:19:36,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:36,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 06:20:34,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:34,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631660963] [2024-12-02 06:20:34,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631660963] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:34,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:34,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 06:20:34,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302449098] [2024-12-02 06:20:34,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:34,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:20:34,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:34,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:20:34,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:20:34,814 INFO L87 Difference]: Start difference. First operand 529 states and 724 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:20:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:39,154 INFO L93 Difference]: Finished difference Result 649 states and 856 transitions. [2024-12-02 06:20:39,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 06:20:39,154 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 163 [2024-12-02 06:20:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:39,156 INFO L225 Difference]: With dead ends: 649 [2024-12-02 06:20:39,156 INFO L226 Difference]: Without dead ends: 647 [2024-12-02 06:20:39,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:20:39,157 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 216 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:39,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 959 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 06:20:39,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-12-02 06:20:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 507. [2024-12-02 06:20:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 435 states have (on average 1.296551724137931) internal successors, (564), 435 states have internal predecessors, (564), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 06:20:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 696 transitions. [2024-12-02 06:20:39,201 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 696 transitions. Word has length 163 [2024-12-02 06:20:39,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:39,201 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 696 transitions. [2024-12-02 06:20:39,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 06:20:39,201 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 696 transitions. [2024-12-02 06:20:39,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-12-02 06:20:39,203 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:39,203 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:39,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 06:20:39,203 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:39,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:39,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1203649883, now seen corresponding path program 1 times [2024-12-02 06:20:39,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:39,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456823826] [2024-12-02 06:20:39,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:39,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 06:20:39,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:39,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456823826] [2024-12-02 06:20:39,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456823826] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:39,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829846332] [2024-12-02 06:20:39,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:39,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:39,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:39,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:39,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:20:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:39,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:20:39,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 1988 proven. 2 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2024-12-02 06:20:40,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 06:20:40,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829846332] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:40,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:40,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 10 [2024-12-02 06:20:40,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143181016] [2024-12-02 06:20:40,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:40,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:20:40,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:40,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:20:40,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:20:40,342 INFO L87 Difference]: Start difference. First operand 507 states and 696 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 4 states have call predecessors, (88), 4 states have call successors, (88) [2024-12-02 06:20:40,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:40,827 INFO L93 Difference]: Finished difference Result 1675 states and 2330 transitions. [2024-12-02 06:20:40,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:20:40,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 4 states have call predecessors, (88), 4 states have call successors, (88) Word has length 293 [2024-12-02 06:20:40,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:40,832 INFO L225 Difference]: With dead ends: 1675 [2024-12-02 06:20:40,832 INFO L226 Difference]: Without dead ends: 1523 [2024-12-02 06:20:40,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:20:40,834 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 916 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:40,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 621 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:20:40,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2024-12-02 06:20:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 809. [2024-12-02 06:20:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 711 states have (on average 1.310829817158931) internal successors, (932), 713 states have internal predecessors, (932), 88 states have call successors, (88), 9 states have call predecessors, (88), 9 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2024-12-02 06:20:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1108 transitions. [2024-12-02 06:20:40,908 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1108 transitions. Word has length 293 [2024-12-02 06:20:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:40,909 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1108 transitions. [2024-12-02 06:20:40,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 4 states have call predecessors, (88), 4 states have call successors, (88) [2024-12-02 06:20:40,909 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1108 transitions. [2024-12-02 06:20:40,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-12-02 06:20:40,911 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:40,912 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:40,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 06:20:41,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-12-02 06:20:41,112 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:41,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1773921689, now seen corresponding path program 1 times [2024-12-02 06:20:41,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:41,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067259463] [2024-12-02 06:20:41,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:41,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:41,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 06:20:41,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067259463] [2024-12-02 06:20:41,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067259463] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81934938] [2024-12-02 06:20:41,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:41,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:41,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:41,554 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:41,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:20:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:41,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:20:41,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 496 proven. 2007 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2024-12-02 06:20:42,031 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 134 proven. 30 refuted. 0 times theorem prover too weak. 3674 trivial. 0 not checked. [2024-12-02 06:20:42,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81934938] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:42,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:42,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 6] total 19 [2024-12-02 06:20:42,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142124862] [2024-12-02 06:20:42,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:42,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:20:42,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:42,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:20:42,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:20:42,314 INFO L87 Difference]: Start difference. First operand 809 states and 1108 transitions. Second operand has 19 states, 19 states have (on average 8.68421052631579) internal successors, (165), 19 states have internal predecessors, (165), 5 states have call successors, (108), 3 states have call predecessors, (108), 5 states have return successors, (110), 5 states have call predecessors, (110), 5 states have call successors, (110) [2024-12-02 06:20:44,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:44,998 INFO L93 Difference]: Finished difference Result 2461 states and 3419 transitions. [2024-12-02 06:20:44,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 06:20:44,998 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.68421052631579) internal successors, (165), 19 states have internal predecessors, (165), 5 states have call successors, (108), 3 states have call predecessors, (108), 5 states have return successors, (110), 5 states have call predecessors, (110), 5 states have call successors, (110) Word has length 293 [2024-12-02 06:20:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:45,006 INFO L225 Difference]: With dead ends: 2461 [2024-12-02 06:20:45,006 INFO L226 Difference]: Without dead ends: 1853 [2024-12-02 06:20:45,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 588 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1108 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=675, Invalid=3231, Unknown=0, NotChecked=0, Total=3906 [2024-12-02 06:20:45,009 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 2883 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:45,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 1705 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 06:20:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2024-12-02 06:20:45,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1304. [2024-12-02 06:20:45,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1115 states have (on average 1.306726457399103) internal successors, (1457), 1118 states have internal predecessors, (1457), 165 states have call successors, (165), 23 states have call predecessors, (165), 23 states have return successors, (165), 162 states have call predecessors, (165), 165 states have call successors, (165) [2024-12-02 06:20:45,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1787 transitions. [2024-12-02 06:20:45,137 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1787 transitions. Word has length 293 [2024-12-02 06:20:45,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:45,137 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1787 transitions. [2024-12-02 06:20:45,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.68421052631579) internal successors, (165), 19 states have internal predecessors, (165), 5 states have call successors, (108), 3 states have call predecessors, (108), 5 states have return successors, (110), 5 states have call predecessors, (110), 5 states have call successors, (110) [2024-12-02 06:20:45,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1787 transitions. [2024-12-02 06:20:45,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-12-02 06:20:45,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:45,140 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:45,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:20:45,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-12-02 06:20:45,340 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:45,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:45,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1525286691, now seen corresponding path program 1 times [2024-12-02 06:20:45,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:45,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889727724] [2024-12-02 06:20:45,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:45,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 06:20:45,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:45,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889727724] [2024-12-02 06:20:45,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889727724] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:45,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284212196] [2024-12-02 06:20:45,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:45,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:45,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:45,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:45,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:20:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:45,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:20:45,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 1964 proven. 57 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked. [2024-12-02 06:20:46,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:46,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3838 backedges. 121 proven. 57 refuted. 0 times theorem prover too weak. 3660 trivial. 0 not checked. [2024-12-02 06:20:46,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284212196] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:46,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:46,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2024-12-02 06:20:46,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208800773] [2024-12-02 06:20:46,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:46,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:20:46,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:46,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:20:46,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:20:46,374 INFO L87 Difference]: Start difference. First operand 1304 states and 1787 transitions. Second operand has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 14 states have internal predecessors, (141), 4 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 4 states have call predecessors, (106), 4 states have call successors, (106) [2024-12-02 06:20:48,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:48,326 INFO L93 Difference]: Finished difference Result 2858 states and 3931 transitions. [2024-12-02 06:20:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 06:20:48,327 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 14 states have internal predecessors, (141), 4 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 4 states have call predecessors, (106), 4 states have call successors, (106) Word has length 294 [2024-12-02 06:20:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:48,332 INFO L225 Difference]: With dead ends: 2858 [2024-12-02 06:20:48,333 INFO L226 Difference]: Without dead ends: 1762 [2024-12-02 06:20:48,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 591 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=493, Invalid=1763, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 06:20:48,335 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 1028 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:48,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 771 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 06:20:48,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-12-02 06:20:48,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1151. [2024-12-02 06:20:48,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 953 states have (on average 1.272822665267576) internal successors, (1213), 956 states have internal predecessors, (1213), 165 states have call successors, (165), 32 states have call predecessors, (165), 32 states have return successors, (165), 162 states have call predecessors, (165), 165 states have call successors, (165) [2024-12-02 06:20:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1543 transitions. [2024-12-02 06:20:48,549 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1543 transitions. Word has length 294 [2024-12-02 06:20:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:48,549 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1543 transitions. [2024-12-02 06:20:48,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 14 states have internal predecessors, (141), 4 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 4 states have call predecessors, (106), 4 states have call successors, (106) [2024-12-02 06:20:48,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1543 transitions. [2024-12-02 06:20:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-12-02 06:20:48,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:48,552 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:48,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:20:48,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-12-02 06:20:48,753 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:48,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:48,753 INFO L85 PathProgramCache]: Analyzing trace with hash 975855892, now seen corresponding path program 1 times [2024-12-02 06:20:48,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:48,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729468303] [2024-12-02 06:20:48,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:48,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 7 proven. 48 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-12-02 06:20:51,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:51,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729468303] [2024-12-02 06:20:51,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729468303] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:51,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518405636] [2024-12-02 06:20:51,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:51,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:51,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:51,833 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:51,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f57361-dfe4-4771-9065-134367982f8f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:20:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:52,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 06:20:52,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 7 proven. 1984 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2024-12-02 06:20:53,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:54,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518405636] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:54,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:20:54,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27 [2024-12-02 06:20:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194541734] [2024-12-02 06:20:54,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:54,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 06:20:54,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:54,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 06:20:54,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:20:54,910 INFO L87 Difference]: Start difference. First operand 1151 states and 1543 transitions. Second operand has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 6 states have call successors, (88), 3 states have call predecessors, (88), 3 states have return successors, (88), 6 states have call predecessors, (88), 6 states have call successors, (88)