./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.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_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/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_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/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_61e05013-1f9d-4623-99db-696bafb9f138/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 56df4eb5f1ce718ca5531ff4f8afda450f18f02286533668c4676eba9d6cba09 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:43:44,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:43:44,783 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:43:44,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:43:44,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:43:44,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:43:44,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:43:44,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:43:44,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:43:44,807 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:43:44,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:43:44,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:43:44,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:43:44,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:43:44,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:43:44,809 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:43:44,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:43:44,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:43:44,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:43:44,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:43:44,811 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:43:44,811 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:43:44,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:43:44,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:43:44,811 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_61e05013-1f9d-4623-99db-696bafb9f138/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 -> 56df4eb5f1ce718ca5531ff4f8afda450f18f02286533668c4676eba9d6cba09 [2024-12-02 13:43:45,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:43:45,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:43:45,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:43:45,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:43:45,018 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:43:45,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i [2024-12-02 13:43:47,629 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/data/cd5a12867/d60c8ceaef6a44f8acb490c5904a4809/FLAGef4489e90 [2024-12-02 13:43:47,843 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:43:47,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i [2024-12-02 13:43:47,852 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/data/cd5a12867/d60c8ceaef6a44f8acb490c5904a4809/FLAGef4489e90 [2024-12-02 13:43:48,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/data/cd5a12867/d60c8ceaef6a44f8acb490c5904a4809 [2024-12-02 13:43:48,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:43:48,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:43:48,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:43:48,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:43:48,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:43:48,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78fb692e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48, skipping insertion in model container [2024-12-02 13:43:48,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:43:48,317 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_61e05013-1f9d-4623-99db-696bafb9f138/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i[919,932] [2024-12-02 13:43:48,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:43:48,389 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:43:48,397 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_61e05013-1f9d-4623-99db-696bafb9f138/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i[919,932] [2024-12-02 13:43:48,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:43:48,445 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:43:48,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48 WrapperNode [2024-12-02 13:43:48,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:43:48,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:43:48,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:43:48,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:43:48,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,495 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-12-02 13:43:48,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:43:48,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:43:48,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:43:48,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:43:48,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,522 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 13:43:48,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,532 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:43:48,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:43:48,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:43:48,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:43:48,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (1/1) ... [2024-12-02 13:43:48,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:43:48,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:43:48,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:43:48,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:43:48,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:43:48,604 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:43:48,604 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:43:48,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:43:48,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:43:48,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:43:48,679 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:43:48,680 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:43:49,093 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-02 13:43:49,093 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:43:49,104 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:43:49,104 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:43:49,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:43:49 BoogieIcfgContainer [2024-12-02 13:43:49,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:43:49,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:43:49,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:43:49,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:43:49,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:43:48" (1/3) ... [2024-12-02 13:43:49,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea72f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:43:49, skipping insertion in model container [2024-12-02 13:43:49,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:43:48" (2/3) ... [2024-12-02 13:43:49,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea72f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:43:49, skipping insertion in model container [2024-12-02 13:43:49,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:43:49" (3/3) ... [2024-12-02 13:43:49,113 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i [2024-12-02 13:43:49,125 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:43:49,126 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-86.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:43:49,179 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:43:49,190 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;@21abb992, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:43:49,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:43:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 13:43:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 13:43:49,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:49,206 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:49,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:49,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:49,211 INFO L85 PathProgramCache]: Analyzing trace with hash 690971058, now seen corresponding path program 1 times [2024-12-02 13:43:49,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:49,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272462723] [2024-12-02 13:43:49,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:49,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-12-02 13:43:49,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:43:49,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272462723] [2024-12-02 13:43:49,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272462723] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:43:49,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508508160] [2024-12-02 13:43:49,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:49,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:43:49,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:43:49,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:43:49,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:43:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:49,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:43:49,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:43:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-12-02 13:43:49,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:43:49,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508508160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:49,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:43:49,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:43:49,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413858022] [2024-12-02 13:43:49,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:49,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:43:49,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:43:49,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:43:49,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:43:49,745 INFO L87 Difference]: Start difference. First operand has 103 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:43:49,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:49,769 INFO L93 Difference]: Finished difference Result 199 states and 353 transitions. [2024-12-02 13:43:49,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:43:49,771 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 196 [2024-12-02 13:43:49,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:49,776 INFO L225 Difference]: With dead ends: 199 [2024-12-02 13:43:49,776 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 13:43:49,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 197 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 13:43:49,795 INFO L435 NwaCegarLoop]: 156 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, 156 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 13:43:49,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:43:49,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 13:43:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-12-02 13:43:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 13:43:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 156 transitions. [2024-12-02 13:43:49,833 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 156 transitions. Word has length 196 [2024-12-02 13:43:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:49,834 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 156 transitions. [2024-12-02 13:43:49,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:43:49,834 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 156 transitions. [2024-12-02 13:43:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 13:43:49,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:49,838 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:49,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:43:50,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:43:50,039 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:50,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1419951696, now seen corresponding path program 1 times [2024-12-02 13:43:50,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:50,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4221455] [2024-12-02 13:43:50,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:50,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:43:50,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:43:50,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4221455] [2024-12-02 13:43:50,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4221455] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:50,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:50,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:43:50,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589078234] [2024-12-02 13:43:50,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:50,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:43:50,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:43:50,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:43:50,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:43:50,293 INFO L87 Difference]: Start difference. First operand 99 states and 156 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:50,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:50,327 INFO L93 Difference]: Finished difference Result 196 states and 311 transitions. [2024-12-02 13:43:50,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:43:50,328 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 13:43:50,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:50,330 INFO L225 Difference]: With dead ends: 196 [2024-12-02 13:43:50,330 INFO L226 Difference]: Without dead ends: 100 [2024-12-02 13:43:50,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:43:50,332 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:50,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:43:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-12-02 13:43:50,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-12-02 13:43:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 13:43:50,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2024-12-02 13:43:50,345 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 196 [2024-12-02 13:43:50,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:50,347 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2024-12-02 13:43:50,347 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2024-12-02 13:43:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 13:43:50,350 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:50,350 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:50,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:43:50,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:50,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1595151922, now seen corresponding path program 1 times [2024-12-02 13:43:50,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:50,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603615289] [2024-12-02 13:43:50,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:50,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:43:50,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:43:50,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603615289] [2024-12-02 13:43:50,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603615289] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:50,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:50,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:43:50,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619878230] [2024-12-02 13:43:50,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:50,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:43:50,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:43:50,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:43:50,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:43:50,671 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:50,942 INFO L93 Difference]: Finished difference Result 295 states and 466 transitions. [2024-12-02 13:43:50,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:43:50,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 13:43:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:50,946 INFO L225 Difference]: With dead ends: 295 [2024-12-02 13:43:50,946 INFO L226 Difference]: Without dead ends: 198 [2024-12-02 13:43:50,947 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 13:43:50,948 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 153 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:50,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 532 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:43:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-12-02 13:43:50,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 153. [2024-12-02 13:43:50,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 88 states have internal predecessors, (116), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 13:43:50,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 240 transitions. [2024-12-02 13:43:50,979 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 240 transitions. Word has length 196 [2024-12-02 13:43:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:50,979 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 240 transitions. [2024-12-02 13:43:50,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 240 transitions. [2024-12-02 13:43:50,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 13:43:50,982 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:50,982 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:50,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:43:50,982 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:50,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:50,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2017853748, now seen corresponding path program 1 times [2024-12-02 13:43:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:50,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33406004] [2024-12-02 13:43:50,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:50,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:43:55,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:43:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33406004] [2024-12-02 13:43:55,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33406004] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 13:43:55,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143272149] [2024-12-02 13:43:55,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:55,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 13:43:55,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:43:55,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 13:43:55,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:43:55,516 INFO L87 Difference]: Start difference. First operand 153 states and 240 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:56,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:56,825 INFO L93 Difference]: Finished difference Result 395 states and 618 transitions. [2024-12-02 13:43:56,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 13:43:56,827 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 13:43:56,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:56,829 INFO L225 Difference]: With dead ends: 395 [2024-12-02 13:43:56,830 INFO L226 Difference]: Without dead ends: 298 [2024-12-02 13:43:56,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:43:56,831 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 493 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:56,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1321 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:43:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-12-02 13:43:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 195. [2024-12-02 13:43:56,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.3923076923076922) internal successors, (181), 130 states have internal predecessors, (181), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 13:43:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 305 transitions. [2024-12-02 13:43:56,856 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 305 transitions. Word has length 196 [2024-12-02 13:43:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:56,857 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 305 transitions. [2024-12-02 13:43:56,857 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), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 305 transitions. [2024-12-02 13:43:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 13:43:56,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:56,860 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:56,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:43:56,860 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:56,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1006736498, now seen corresponding path program 1 times [2024-12-02 13:43:56,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:56,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465807499] [2024-12-02 13:43:56,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:43:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:43:56,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:43:56,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465807499] [2024-12-02 13:43:56,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465807499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:43:56,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:43:56,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:43:56,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721536125] [2024-12-02 13:43:56,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:43:56,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:43:56,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:43:56,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:43:56,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:43:56,971 INFO L87 Difference]: Start difference. First operand 195 states and 305 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:57,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:43:57,019 INFO L93 Difference]: Finished difference Result 388 states and 611 transitions. [2024-12-02 13:43:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:43:57,020 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 13:43:57,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:43:57,023 INFO L225 Difference]: With dead ends: 388 [2024-12-02 13:43:57,023 INFO L226 Difference]: Without dead ends: 291 [2024-12-02 13:43:57,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:43:57,024 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 148 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:43:57,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 351 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:43:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-12-02 13:43:57,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 289. [2024-12-02 13:43:57,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 192 states have (on average 1.390625) internal successors, (267), 192 states have internal predecessors, (267), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:43:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 453 transitions. [2024-12-02 13:43:57,057 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 453 transitions. Word has length 196 [2024-12-02 13:43:57,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:43:57,058 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 453 transitions. [2024-12-02 13:43:57,058 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, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:43:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 453 transitions. [2024-12-02 13:43:57,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 13:43:57,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:43:57,061 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:43:57,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:43:57,061 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:43:57,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:43:57,062 INFO L85 PathProgramCache]: Analyzing trace with hash -498753333, now seen corresponding path program 1 times [2024-12-02 13:43:57,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:43:57,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074538323] [2024-12-02 13:43:57,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:43:57,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:43:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:44:02,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:02,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074538323] [2024-12-02 13:44:02,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074538323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:02,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:02,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 13:44:02,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001482555] [2024-12-02 13:44:02,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:02,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 13:44:02,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:02,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 13:44:02,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:44:02,051 INFO L87 Difference]: Start difference. First operand 289 states and 453 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:03,092 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2024-12-02 13:44:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:44:03,093 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-12-02 13:44:03,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:03,096 INFO L225 Difference]: With dead ends: 376 [2024-12-02 13:44:03,096 INFO L226 Difference]: Without dead ends: 374 [2024-12-02 13:44:03,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:44:03,097 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 698 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:03,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1094 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:44:03,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-12-02 13:44:03,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 290. [2024-12-02 13:44:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 193 states have (on average 1.38860103626943) internal successors, (268), 193 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:44:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 454 transitions. [2024-12-02 13:44:03,132 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 454 transitions. Word has length 197 [2024-12-02 13:44:03,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:03,133 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 454 transitions. [2024-12-02 13:44:03,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 454 transitions. [2024-12-02 13:44:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 13:44:03,136 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:03,136 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:03,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:44:03,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:03,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1514301425, now seen corresponding path program 1 times [2024-12-02 13:44:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:03,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659240788] [2024-12-02 13:44:03,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:03,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:44:03,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:03,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659240788] [2024-12-02 13:44:03,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659240788] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:03,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:03,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:44:03,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170355528] [2024-12-02 13:44:03,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:03,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:44:03,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:03,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:44:03,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:44:03,376 INFO L87 Difference]: Start difference. First operand 290 states and 454 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:03,462 INFO L93 Difference]: Finished difference Result 504 states and 785 transitions. [2024-12-02 13:44:03,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:44:03,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-12-02 13:44:03,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:03,465 INFO L225 Difference]: With dead ends: 504 [2024-12-02 13:44:03,465 INFO L226 Difference]: Without dead ends: 310 [2024-12-02 13:44:03,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:44:03,467 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 56 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:03,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 433 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:44:03,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-12-02 13:44:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 298. [2024-12-02 13:44:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 199 states have (on average 1.3618090452261307) internal successors, (271), 199 states have internal predecessors, (271), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:44:03,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 457 transitions. [2024-12-02 13:44:03,490 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 457 transitions. Word has length 197 [2024-12-02 13:44:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:03,491 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 457 transitions. [2024-12-02 13:44:03,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 457 transitions. [2024-12-02 13:44:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 13:44:03,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:03,494 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:03,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:44:03,494 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:03,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash 704954799, now seen corresponding path program 1 times [2024-12-02 13:44:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:03,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690630749] [2024-12-02 13:44:03,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:44:07,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:07,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690630749] [2024-12-02 13:44:07,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690630749] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:07,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:07,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 13:44:07,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692894450] [2024-12-02 13:44:07,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:07,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:44:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:07,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:44:07,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:44:07,468 INFO L87 Difference]: Start difference. First operand 298 states and 457 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:44:09,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:09,088 INFO L93 Difference]: Finished difference Result 391 states and 585 transitions. [2024-12-02 13:44:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:44:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 197 [2024-12-02 13:44:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:09,091 INFO L225 Difference]: With dead ends: 391 [2024-12-02 13:44:09,091 INFO L226 Difference]: Without dead ends: 389 [2024-12-02 13:44:09,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=319, Invalid=941, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 13:44:09,092 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 551 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:09,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1400 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:44:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-12-02 13:44:09,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 298. [2024-12-02 13:44:09,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 199 states have (on average 1.3618090452261307) internal successors, (271), 199 states have internal predecessors, (271), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:44:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 457 transitions. [2024-12-02 13:44:09,118 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 457 transitions. Word has length 197 [2024-12-02 13:44:09,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:09,119 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 457 transitions. [2024-12-02 13:44:09,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:44:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 457 transitions. [2024-12-02 13:44:09,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 13:44:09,121 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:09,121 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:09,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:44:09,122 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:09,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash -383393271, now seen corresponding path program 1 times [2024-12-02 13:44:09,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:09,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083435782] [2024-12-02 13:44:09,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:09,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:44:14,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:14,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083435782] [2024-12-02 13:44:14,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083435782] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:14,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:14,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 13:44:14,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517066423] [2024-12-02 13:44:14,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:14,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:44:14,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:14,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:44:14,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:44:14,156 INFO L87 Difference]: Start difference. First operand 298 states and 457 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:16,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:16,422 INFO L93 Difference]: Finished difference Result 416 states and 620 transitions. [2024-12-02 13:44:16,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:44:16,423 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-12-02 13:44:16,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:16,425 INFO L225 Difference]: With dead ends: 416 [2024-12-02 13:44:16,425 INFO L226 Difference]: Without dead ends: 414 [2024-12-02 13:44:16,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 13:44:16,426 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 666 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:16,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1186 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:44:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-12-02 13:44:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 317. [2024-12-02 13:44:16,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 218 states have (on average 1.3761467889908257) internal successors, (300), 218 states have internal predecessors, (300), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:44:16,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 486 transitions. [2024-12-02 13:44:16,445 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 486 transitions. Word has length 197 [2024-12-02 13:44:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:16,445 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 486 transitions. [2024-12-02 13:44:16,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:16,446 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 486 transitions. [2024-12-02 13:44:16,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 13:44:16,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:16,447 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:16,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:44:16,447 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:16,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:16,448 INFO L85 PathProgramCache]: Analyzing trace with hash -125227833, now seen corresponding path program 1 times [2024-12-02 13:44:16,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:16,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864411137] [2024-12-02 13:44:16,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:44:23,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:23,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864411137] [2024-12-02 13:44:23,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864411137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:23,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:23,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 13:44:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953946265] [2024-12-02 13:44:23,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:23,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:44:23,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:23,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:44:23,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:44:23,928 INFO L87 Difference]: Start difference. First operand 317 states and 486 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:33,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:33,262 INFO L93 Difference]: Finished difference Result 410 states and 614 transitions. [2024-12-02 13:44:33,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 13:44:33,262 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-12-02 13:44:33,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:33,264 INFO L225 Difference]: With dead ends: 410 [2024-12-02 13:44:33,264 INFO L226 Difference]: Without dead ends: 408 [2024-12-02 13:44:33,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 13:44:33,265 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 481 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:33,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1300 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 13:44:33,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-12-02 13:44:33,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 317. [2024-12-02 13:44:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 218 states have (on average 1.3761467889908257) internal successors, (300), 218 states have internal predecessors, (300), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:44:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 486 transitions. [2024-12-02 13:44:33,287 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 486 transitions. Word has length 197 [2024-12-02 13:44:33,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:33,287 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 486 transitions. [2024-12-02 13:44:33,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:44:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 486 transitions. [2024-12-02 13:44:33,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 13:44:33,289 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:33,289 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:33,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:44:33,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:33,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:33,290 INFO L85 PathProgramCache]: Analyzing trace with hash -523749818, now seen corresponding path program 1 times [2024-12-02 13:44:33,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:33,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869594834] [2024-12-02 13:44:33,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:33,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:44:50,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869594834] [2024-12-02 13:44:50,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869594834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:50,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:50,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 13:44:50,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501426777] [2024-12-02 13:44:50,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:50,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:44:50,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:50,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:44:50,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:44:50,280 INFO L87 Difference]: Start difference. First operand 317 states and 486 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:45:02,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:02,168 INFO L93 Difference]: Finished difference Result 421 states and 629 transitions. [2024-12-02 13:45:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:45:02,169 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 13:45:02,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:02,171 INFO L225 Difference]: With dead ends: 421 [2024-12-02 13:45:02,171 INFO L226 Difference]: Without dead ends: 419 [2024-12-02 13:45:02,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=388, Invalid=1018, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 13:45:02,173 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 430 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:02,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1423 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 13:45:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-12-02 13:45:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 336. [2024-12-02 13:45:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 237 states have (on average 1.3881856540084387) internal successors, (329), 237 states have internal predecessors, (329), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:45:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 515 transitions. [2024-12-02 13:45:02,205 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 515 transitions. Word has length 198 [2024-12-02 13:45:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:02,206 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 515 transitions. [2024-12-02 13:45:02,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:45:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 515 transitions. [2024-12-02 13:45:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 13:45:02,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:02,208 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:02,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:45:02,208 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:02,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:02,208 INFO L85 PathProgramCache]: Analyzing trace with hash -265584380, now seen corresponding path program 1 times [2024-12-02 13:45:02,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:02,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710852960] [2024-12-02 13:45:02,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:02,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:45:17,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:17,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710852960] [2024-12-02 13:45:17,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710852960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:17,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:17,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 13:45:17,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953898596] [2024-12-02 13:45:17,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:17,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:45:17,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:17,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:45:17,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:45:17,541 INFO L87 Difference]: Start difference. First operand 336 states and 515 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:45:28,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:28,851 INFO L93 Difference]: Finished difference Result 415 states and 623 transitions. [2024-12-02 13:45:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:45:28,851 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 13:45:28,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:28,853 INFO L225 Difference]: With dead ends: 415 [2024-12-02 13:45:28,853 INFO L226 Difference]: Without dead ends: 413 [2024-12-02 13:45:28,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=387, Invalid=945, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 13:45:28,854 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 389 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:28,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1563 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 13:45:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-12-02 13:45:28,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 333. [2024-12-02 13:45:28,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 234 states have (on average 1.3888888888888888) internal successors, (325), 234 states have internal predecessors, (325), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:45:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 511 transitions. [2024-12-02 13:45:28,879 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 511 transitions. Word has length 198 [2024-12-02 13:45:28,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:28,879 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 511 transitions. [2024-12-02 13:45:28,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:45:28,879 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 511 transitions. [2024-12-02 13:45:28,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 13:45:28,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:28,881 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:28,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:45:28,881 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:28,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:28,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1751052208, now seen corresponding path program 1 times [2024-12-02 13:45:28,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:28,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145185894] [2024-12-02 13:45:28,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:28,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:31,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:45:31,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:31,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145185894] [2024-12-02 13:45:31,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145185894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:31,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:31,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 13:45:31,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577918904] [2024-12-02 13:45:31,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:31,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:45:31,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:31,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:45:31,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:45:31,741 INFO L87 Difference]: Start difference. First operand 333 states and 511 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:45:32,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:32,851 INFO L93 Difference]: Finished difference Result 396 states and 594 transitions. [2024-12-02 13:45:32,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 13:45:32,852 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-12-02 13:45:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:32,853 INFO L225 Difference]: With dead ends: 396 [2024-12-02 13:45:32,854 INFO L226 Difference]: Without dead ends: 394 [2024-12-02 13:45:32,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 13:45:32,854 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 700 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:32,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1355 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:45:32,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-12-02 13:45:32,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 330. [2024-12-02 13:45:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 231 states have (on average 1.3896103896103895) internal successors, (321), 231 states have internal predecessors, (321), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:45:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 507 transitions. [2024-12-02 13:45:32,870 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 507 transitions. Word has length 198 [2024-12-02 13:45:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:32,870 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 507 transitions. [2024-12-02 13:45:32,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:45:32,870 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 507 transitions. [2024-12-02 13:45:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 13:45:32,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:32,871 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:32,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:45:32,871 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:32,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1865708588, now seen corresponding path program 1 times [2024-12-02 13:45:32,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:32,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085010758] [2024-12-02 13:45:32,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:32,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:45:44,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:45:44,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085010758] [2024-12-02 13:45:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085010758] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:45:44,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:45:44,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 13:45:44,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511414465] [2024-12-02 13:45:44,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:45:44,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:45:44,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:45:44,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:45:44,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:45:44,025 INFO L87 Difference]: Start difference. First operand 330 states and 507 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:45:53,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:53,957 INFO L93 Difference]: Finished difference Result 418 states and 625 transitions. [2024-12-02 13:45:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:45:53,958 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 13:45:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:45:53,960 INFO L225 Difference]: With dead ends: 418 [2024-12-02 13:45:53,960 INFO L226 Difference]: Without dead ends: 416 [2024-12-02 13:45:53,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=337, Invalid=853, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 13:45:53,961 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 665 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:45:53,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1172 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 13:45:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-12-02 13:45:53,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 345. [2024-12-02 13:45:53,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 246 states have (on average 1.3983739837398375) internal successors, (344), 246 states have internal predecessors, (344), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:45:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 530 transitions. [2024-12-02 13:45:53,976 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 530 transitions. Word has length 198 [2024-12-02 13:45:53,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:45:53,976 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 530 transitions. [2024-12-02 13:45:53,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:45:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 530 transitions. [2024-12-02 13:45:53,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 13:45:53,977 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:45:53,978 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:45:53,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:45:53,978 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:45:53,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:53,978 INFO L85 PathProgramCache]: Analyzing trace with hash -719258758, now seen corresponding path program 1 times [2024-12-02 13:45:53,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:45:53,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455508423] [2024-12-02 13:45:53,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:53,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:46:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:46:02,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:46:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455508423] [2024-12-02 13:46:02,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455508423] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:46:02,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:46:02,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 13:46:02,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057362156] [2024-12-02 13:46:02,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:46:02,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:46:02,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:46:02,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:46:02,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:46:02,003 INFO L87 Difference]: Start difference. First operand 345 states and 530 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:46:19,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:46:19,684 INFO L93 Difference]: Finished difference Result 425 states and 634 transitions. [2024-12-02 13:46:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 13:46:19,685 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 13:46:19,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:46:19,686 INFO L225 Difference]: With dead ends: 425 [2024-12-02 13:46:19,686 INFO L226 Difference]: Without dead ends: 423 [2024-12-02 13:46:19,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=446, Invalid=1114, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 13:46:19,687 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 558 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:46:19,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1268 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 13:46:19,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-12-02 13:46:19,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 346. [2024-12-02 13:46:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 247 states have (on average 1.3967611336032388) internal successors, (345), 247 states have internal predecessors, (345), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:46:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 531 transitions. [2024-12-02 13:46:19,705 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 531 transitions. Word has length 198 [2024-12-02 13:46:19,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:46:19,705 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 531 transitions. [2024-12-02 13:46:19,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:46:19,705 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 531 transitions. [2024-12-02 13:46:19,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 13:46:19,706 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:46:19,706 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:46:19,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:46:19,706 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:46:19,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:46:19,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1842452694, now seen corresponding path program 1 times [2024-12-02 13:46:19,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:46:19,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788742244] [2024-12-02 13:46:19,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:46:19,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:46:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:46:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:46:24,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:46:24,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788742244] [2024-12-02 13:46:24,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788742244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:46:24,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:46:24,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 13:46:24,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936464881] [2024-12-02 13:46:24,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:46:24,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:46:24,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:46:24,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:46:24,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:46:24,890 INFO L87 Difference]: Start difference. First operand 346 states and 531 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:46:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:46:27,414 INFO L93 Difference]: Finished difference Result 414 states and 621 transitions. [2024-12-02 13:46:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:46:27,415 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 13:46:27,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:46:27,416 INFO L225 Difference]: With dead ends: 414 [2024-12-02 13:46:27,416 INFO L226 Difference]: Without dead ends: 412 [2024-12-02 13:46:27,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=358, Invalid=902, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 13:46:27,417 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 651 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:46:27,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1102 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:46:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-12-02 13:46:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 355. [2024-12-02 13:46:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 256 states have (on average 1.40625) internal successors, (360), 256 states have internal predecessors, (360), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:46:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 546 transitions. [2024-12-02 13:46:27,443 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 546 transitions. Word has length 198 [2024-12-02 13:46:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:46:27,443 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 546 transitions. [2024-12-02 13:46:27,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:46:27,443 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 546 transitions. [2024-12-02 13:46:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 13:46:27,444 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:46:27,444 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:46:27,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:46:27,444 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:46:27,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:46:27,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1306064772, now seen corresponding path program 1 times [2024-12-02 13:46:27,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:46:27,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825155035] [2024-12-02 13:46:27,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:46:27,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:46:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:46:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:46:35,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:46:35,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825155035] [2024-12-02 13:46:35,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825155035] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:46:35,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:46:35,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 13:46:35,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707111787] [2024-12-02 13:46:35,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:46:35,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:46:35,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:46:35,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:46:35,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:46:35,136 INFO L87 Difference]: Start difference. First operand 355 states and 546 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:46:44,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:46:44,122 INFO L93 Difference]: Finished difference Result 402 states and 604 transitions. [2024-12-02 13:46:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:46:44,123 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-12-02 13:46:44,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:46:44,125 INFO L225 Difference]: With dead ends: 402 [2024-12-02 13:46:44,126 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 13:46:44,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 13:46:44,127 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 507 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:46:44,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 1731 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 13:46:44,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 13:46:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 346. [2024-12-02 13:46:44,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 247 states have (on average 1.3967611336032388) internal successors, (345), 247 states have internal predecessors, (345), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:46:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 531 transitions. [2024-12-02 13:46:44,146 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 531 transitions. Word has length 198 [2024-12-02 13:46:44,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:46:44,147 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 531 transitions. [2024-12-02 13:46:44,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:46:44,147 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 531 transitions. [2024-12-02 13:46:44,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 13:46:44,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:46:44,149 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:46:44,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:46:44,149 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:46:44,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:46:44,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1921794249, now seen corresponding path program 1 times [2024-12-02 13:46:44,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:46:44,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806884784] [2024-12-02 13:46:44,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:46:44,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:46:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:00,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:47:00,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:00,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806884784] [2024-12-02 13:47:00,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806884784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:00,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:00,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 13:47:00,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638441313] [2024-12-02 13:47:00,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:00,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:47:00,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:00,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:47:00,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:47:00,725 INFO L87 Difference]: Start difference. First operand 346 states and 531 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:47:15,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:47:15,032 INFO L93 Difference]: Finished difference Result 419 states and 626 transitions. [2024-12-02 13:47:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:47:15,032 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-12-02 13:47:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:47:15,034 INFO L225 Difference]: With dead ends: 419 [2024-12-02 13:47:15,034 INFO L226 Difference]: Without dead ends: 417 [2024-12-02 13:47:15,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=428, Invalid=1132, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 13:47:15,035 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 483 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:47:15,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1493 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 13:47:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-12-02 13:47:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 355. [2024-12-02 13:47:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 256 states have (on average 1.40625) internal successors, (360), 256 states have internal predecessors, (360), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:47:15,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 546 transitions. [2024-12-02 13:47:15,058 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 546 transitions. Word has length 199 [2024-12-02 13:47:15,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:47:15,058 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 546 transitions. [2024-12-02 13:47:15,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:47:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 546 transitions. [2024-12-02 13:47:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 13:47:15,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:47:15,060 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:15,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:47:15,060 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:47:15,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:15,061 INFO L85 PathProgramCache]: Analyzing trace with hash -775344419, now seen corresponding path program 1 times [2024-12-02 13:47:15,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:15,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46571152] [2024-12-02 13:47:15,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:15,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:28,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:47:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:28,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46571152] [2024-12-02 13:47:28,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46571152] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:28,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:28,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 13:47:28,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788752562] [2024-12-02 13:47:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:28,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:47:28,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:28,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:47:28,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:47:28,513 INFO L87 Difference]: Start difference. First operand 355 states and 546 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:47:38,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:47:38,018 INFO L93 Difference]: Finished difference Result 419 states and 626 transitions. [2024-12-02 13:47:38,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:47:38,019 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-12-02 13:47:38,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:47:38,020 INFO L225 Difference]: With dead ends: 419 [2024-12-02 13:47:38,021 INFO L226 Difference]: Without dead ends: 417 [2024-12-02 13:47:38,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=432, Invalid=1128, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 13:47:38,021 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 489 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:47:38,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1247 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 13:47:38,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-12-02 13:47:38,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 346. [2024-12-02 13:47:38,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 247 states have (on average 1.3967611336032388) internal successors, (345), 247 states have internal predecessors, (345), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:47:38,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 531 transitions. [2024-12-02 13:47:38,038 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 531 transitions. Word has length 199 [2024-12-02 13:47:38,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:47:38,038 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 531 transitions. [2024-12-02 13:47:38,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:47:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 531 transitions. [2024-12-02 13:47:38,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 13:47:38,039 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:47:38,039 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:47:38,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:47:38,039 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:47:38,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:47:38,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1786367033, now seen corresponding path program 1 times [2024-12-02 13:47:38,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:47:38,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874912908] [2024-12-02 13:47:38,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:47:38,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:47:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:47:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:47:55,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:47:55,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874912908] [2024-12-02 13:47:55,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874912908] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:47:55,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:47:55,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 13:47:55,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807600463] [2024-12-02 13:47:55,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:47:55,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:47:55,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:47:55,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:47:55,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:47:55,625 INFO L87 Difference]: Start difference. First operand 346 states and 531 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:48:08,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:48:08,926 INFO L93 Difference]: Finished difference Result 415 states and 622 transitions. [2024-12-02 13:48:08,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:48:08,926 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-12-02 13:48:08,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:48:08,928 INFO L225 Difference]: With dead ends: 415 [2024-12-02 13:48:08,928 INFO L226 Difference]: Without dead ends: 413 [2024-12-02 13:48:08,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 13:48:08,928 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 315 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:48:08,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1509 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 13:48:08,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-12-02 13:48:08,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 346. [2024-12-02 13:48:08,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 247 states have (on average 1.3967611336032388) internal successors, (345), 247 states have internal predecessors, (345), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:48:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 531 transitions. [2024-12-02 13:48:08,946 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 531 transitions. Word has length 199 [2024-12-02 13:48:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:48:08,946 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 531 transitions. [2024-12-02 13:48:08,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:48:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 531 transitions. [2024-12-02 13:48:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 13:48:08,947 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:48:08,947 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:48:08,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:48:08,948 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:48:08,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:48:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1362150433, now seen corresponding path program 1 times [2024-12-02 13:48:08,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:48:08,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032087613] [2024-12-02 13:48:08,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:48:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:48:20,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:48:20,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032087613] [2024-12-02 13:48:20,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032087613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:48:20,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:48:20,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 13:48:20,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106915745] [2024-12-02 13:48:20,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:48:20,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:48:20,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:48:20,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:48:20,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:48:20,653 INFO L87 Difference]: Start difference. First operand 346 states and 531 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:48:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:48:42,192 INFO L93 Difference]: Finished difference Result 414 states and 620 transitions. [2024-12-02 13:48:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 13:48:42,193 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-12-02 13:48:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:48:42,194 INFO L225 Difference]: With dead ends: 414 [2024-12-02 13:48:42,194 INFO L226 Difference]: Without dead ends: 412 [2024-12-02 13:48:42,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=553, Invalid=1339, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 13:48:42,195 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 322 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:48:42,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1436 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 13:48:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-12-02 13:48:42,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 334. [2024-12-02 13:48:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 235 states have (on average 1.3872340425531915) internal successors, (326), 235 states have internal predecessors, (326), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:48:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 512 transitions. [2024-12-02 13:48:42,211 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 512 transitions. Word has length 199 [2024-12-02 13:48:42,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:48:42,211 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 512 transitions. [2024-12-02 13:48:42,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:48:42,211 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 512 transitions. [2024-12-02 13:48:42,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 13:48:42,212 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:48:42,212 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:48:42,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:48:42,212 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:48:42,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:48:42,213 INFO L85 PathProgramCache]: Analyzing trace with hash 607363203, now seen corresponding path program 1 times [2024-12-02 13:48:42,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:48:42,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568608269] [2024-12-02 13:48:42,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:48:42,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:48:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:48:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:48:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:48:54,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568608269] [2024-12-02 13:48:54,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568608269] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:48:54,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:48:54,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 13:48:54,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912891625] [2024-12-02 13:48:54,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:48:54,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:48:54,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:48:54,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:48:54,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:48:54,052 INFO L87 Difference]: Start difference. First operand 334 states and 512 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 13:49:06,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:49:06,545 INFO L93 Difference]: Finished difference Result 418 states and 625 transitions. [2024-12-02 13:49:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:49:06,546 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 199 [2024-12-02 13:49:06,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:49:06,547 INFO L225 Difference]: With dead ends: 418 [2024-12-02 13:49:06,547 INFO L226 Difference]: Without dead ends: 416 [2024-12-02 13:49:06,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=396, Invalid=1086, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 13:49:06,549 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 836 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:49:06,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1365 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 13:49:06,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-12-02 13:49:06,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 347. [2024-12-02 13:49:06,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 248 states have (on average 1.3951612903225807) internal successors, (346), 248 states have internal predecessors, (346), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 13:49:06,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 532 transitions. [2024-12-02 13:49:06,575 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 532 transitions. Word has length 199 [2024-12-02 13:49:06,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:49:06,575 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 532 transitions. [2024-12-02 13:49:06,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 13:49:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 532 transitions. [2024-12-02 13:49:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 13:49:06,576 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:49:06,576 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:49:06,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:49:06,577 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:49:06,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:49:06,577 INFO L85 PathProgramCache]: Analyzing trace with hash -403754047, now seen corresponding path program 1 times [2024-12-02 13:49:06,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:49:06,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068792624] [2024-12-02 13:49:06,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:49:06,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:49:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:49:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:49:16,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:49:16,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068792624] [2024-12-02 13:49:16,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068792624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:49:16,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:49:16,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 13:49:16,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470490751] [2024-12-02 13:49:16,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:49:16,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:49:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:49:16,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:49:16,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:49:16,699 INFO L87 Difference]: Start difference. First operand 347 states and 532 transitions. Second operand has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:49:56,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:49:56,529 INFO L93 Difference]: Finished difference Result 666 states and 996 transitions. [2024-12-02 13:49:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-12-02 13:49:56,530 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2024-12-02 13:49:56,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:49:56,532 INFO L225 Difference]: With dead ends: 666 [2024-12-02 13:49:56,532 INFO L226 Difference]: Without dead ends: 664 [2024-12-02 13:49:56,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 968 ImplicationChecksByTransitivity, 37.0s TimeCoverageRelationStatistics Valid=872, Invalid=3034, Unknown=0, NotChecked=0, Total=3906 [2024-12-02 13:49:56,533 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 1193 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:49:56,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 2204 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-12-02 13:49:56,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-12-02 13:49:56,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 452. [2024-12-02 13:49:56,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 320 states have (on average 1.390625) internal successors, (445), 320 states have internal predecessors, (445), 124 states have call successors, (124), 7 states have call predecessors, (124), 7 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 13:49:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 693 transitions. [2024-12-02 13:49:56,557 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 693 transitions. Word has length 199 [2024-12-02 13:49:56,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:49:56,557 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 693 transitions. [2024-12-02 13:49:56,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:49:56,557 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 693 transitions. [2024-12-02 13:49:56,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 13:49:56,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:49:56,558 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:49:56,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:49:56,558 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:49:56,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:49:56,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1131292288, now seen corresponding path program 1 times [2024-12-02 13:49:56,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:49:56,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016730048] [2024-12-02 13:49:56,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:49:56,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:49:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:50:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:50:12,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:50:12,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016730048] [2024-12-02 13:50:12,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016730048] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:50:12,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:50:12,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 13:50:12,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077138858] [2024-12-02 13:50:12,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:50:12,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:50:12,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:50:12,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:50:12,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:50:12,541 INFO L87 Difference]: Start difference. First operand 452 states and 693 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:50:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:50:25,605 INFO L93 Difference]: Finished difference Result 527 states and 791 transitions. [2024-12-02 13:50:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:50:25,606 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-12-02 13:50:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:50:25,607 INFO L225 Difference]: With dead ends: 527 [2024-12-02 13:50:25,607 INFO L226 Difference]: Without dead ends: 525 [2024-12-02 13:50:25,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=445, Invalid=1115, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 13:50:25,608 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 477 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:50:25,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1458 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 13:50:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-12-02 13:50:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 462. [2024-12-02 13:50:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 330 states have (on average 1.396969696969697) internal successors, (461), 330 states have internal predecessors, (461), 124 states have call successors, (124), 7 states have call predecessors, (124), 7 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 13:50:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 709 transitions. [2024-12-02 13:50:25,634 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 709 transitions. Word has length 200 [2024-12-02 13:50:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:50:25,635 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 709 transitions. [2024-12-02 13:50:25,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 13:50:25,635 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 709 transitions. [2024-12-02 13:50:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 13:50:25,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:50:25,636 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:50:25,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:50:25,636 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:50:25,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:50:25,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2142409538, now seen corresponding path program 1 times [2024-12-02 13:50:25,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:50:25,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441775428] [2024-12-02 13:50:25,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:50:25,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:50:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:50:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 13:50:41,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:50:41,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441775428] [2024-12-02 13:50:41,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441775428] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:50:41,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:50:41,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 13:50:41,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540516780] [2024-12-02 13:50:41,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:50:41,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 13:50:41,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:50:41,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 13:50:41,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:50:41,790 INFO L87 Difference]: Start difference. First operand 462 states and 709 transitions. Second operand has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:50:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:50:58,192 INFO L93 Difference]: Finished difference Result 515 states and 776 transitions. [2024-12-02 13:50:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:50:58,193 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 200 [2024-12-02 13:50:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:50:58,194 INFO L225 Difference]: With dead ends: 515 [2024-12-02 13:50:58,194 INFO L226 Difference]: Without dead ends: 513 [2024-12-02 13:50:58,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=455, Invalid=1267, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 13:50:58,195 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 483 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:50:58,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1720 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 13:50:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-12-02 13:50:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 450. [2024-12-02 13:50:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 318 states have (on average 1.389937106918239) internal successors, (442), 318 states have internal predecessors, (442), 124 states have call successors, (124), 7 states have call predecessors, (124), 7 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 13:50:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 690 transitions. [2024-12-02 13:50:58,218 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 690 transitions. Word has length 200 [2024-12-02 13:50:58,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:50:58,219 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 690 transitions. [2024-12-02 13:50:58,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 13:50:58,219 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 690 transitions. [2024-12-02 13:50:58,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-12-02 13:50:58,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:50:58,223 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 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, 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] [2024-12-02 13:50:58,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:50:58,223 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:50:58,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:50:58,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1060048766, now seen corresponding path program 1 times [2024-12-02 13:50:58,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:50:58,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844324726] [2024-12-02 13:50:58,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:50:58,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:50:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:07,724 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 5 proven. 63 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-12-02 13:51:07,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:51:07,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844324726] [2024-12-02 13:51:07,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844324726] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:51:07,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834212134] [2024-12-02 13:51:07,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:07,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:51:07,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:51:07,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:51:07,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e05013-1f9d-4623-99db-696bafb9f138/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:51:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:08,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-12-02 13:51:08,296 INFO L279 TraceCheckSpWp]: Computing forward predicates...