./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.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_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/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_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/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_b7b01f80-9dff-4450-8ddc-cace494627b6/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 660f06fd7b788e8c10cf619684bc86bfa7277339b3513d64ca91be95bd68ab85 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:30:10,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:30:10,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:30:10,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:30:10,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:30:10,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:30:10,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:30:10,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:30:10,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:30:10,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:30:10,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:30:10,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:30:10,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:30:10,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:30:10,582 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:30:10,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:30:10,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:30:10,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:30:10,583 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:30:10,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:30:10,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:30:10,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:30:10,584 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:30:10,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:30:10,585 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:30:10,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:30:10,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:30:10,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:30:10,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:30:10,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:30:10,585 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_b7b01f80-9dff-4450-8ddc-cace494627b6/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 -> 660f06fd7b788e8c10cf619684bc86bfa7277339b3513d64ca91be95bd68ab85 [2024-12-02 08:30:10,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:30:10,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:30:10,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:30:10,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:30:10,847 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:30:10,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2024-12-02 08:30:13,490 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/data/363d75831/d7aef318d5e9408b84b5dec683adeca7/FLAG63391a933 [2024-12-02 08:30:13,698 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:30:13,699 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2024-12-02 08:30:13,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/data/363d75831/d7aef318d5e9408b84b5dec683adeca7/FLAG63391a933 [2024-12-02 08:30:13,722 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/data/363d75831/d7aef318d5e9408b84b5dec683adeca7 [2024-12-02 08:30:13,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:30:13,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:30:13,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:30:13,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:30:13,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:30:13,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:13" (1/1) ... [2024-12-02 08:30:13,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6065d70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:13, skipping insertion in model container [2024-12-02 08:30:13,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:13" (1/1) ... [2024-12-02 08:30:13,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:30:13,892 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_b7b01f80-9dff-4450-8ddc-cace494627b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2024-12-02 08:30:13,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:30:13,957 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:30:13,966 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_b7b01f80-9dff-4450-8ddc-cace494627b6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2024-12-02 08:30:13,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:30:14,014 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:30:14,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14 WrapperNode [2024-12-02 08:30:14,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:30:14,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:30:14,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:30:14,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:30:14,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,076 INFO L138 Inliner]: procedures = 26, calls = 182, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 526 [2024-12-02 08:30:14,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:30:14,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:30:14,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:30:14,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:30:14,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,108 INFO L175 MemorySlicer]: Split 138 memory accesses to 15 slices as follows [2, 11, 6, 22, 22, 22, 6, 8, 5, 3, 8, 7, 3, 6, 7]. 16 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 18 writes are split as follows [0, 4, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2024-12-02 08:30:14,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,123 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:30:14,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:30:14,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:30:14,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:30:14,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (1/1) ... [2024-12-02 08:30:14,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:30:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:14,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:30:14,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:30:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:30:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 08:30:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:30:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 08:30:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:30:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:30:14,366 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:30:14,368 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:30:14,859 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-12-02 08:30:14,859 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:30:14,871 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:30:14,871 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:30:14,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:14 BoogieIcfgContainer [2024-12-02 08:30:14,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:30:14,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:30:14,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:30:14,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:30:14,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:30:13" (1/3) ... [2024-12-02 08:30:14,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6777fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:14, skipping insertion in model container [2024-12-02 08:30:14,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:14" (2/3) ... [2024-12-02 08:30:14,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6777fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:14, skipping insertion in model container [2024-12-02 08:30:14,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:14" (3/3) ... [2024-12-02 08:30:14,893 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-71.i [2024-12-02 08:30:14,906 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:30:14,908 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-71.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:30:14,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:30:14,970 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;@1c30f588, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:30:14,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:30:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:30:14,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:30:14,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:14,984 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:14,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:14,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 634959908, now seen corresponding path program 1 times [2024-12-02 08:30:14,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:14,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643455034] [2024-12-02 08:30:14,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:14,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 08:30:15,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:15,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643455034] [2024-12-02 08:30:15,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643455034] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:30:15,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77549885] [2024-12-02 08:30:15,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:15,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:15,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:15,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:30:15,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:30:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:15,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:30:15,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 08:30:15,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:30:15,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77549885] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:15,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:30:15,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:30:15,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267191956] [2024-12-02 08:30:15,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:15,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:30:15,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:15,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:30:15,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:30:15,584 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:30:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:15,611 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-12-02 08:30:15,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:30:15,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-12-02 08:30:15,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:15,618 INFO L225 Difference]: With dead ends: 203 [2024-12-02 08:30:15,618 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 08:30:15,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 08:30:15,623 INFO L435 NwaCegarLoop]: 144 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, 144 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 08:30:15,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 08:30:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-12-02 08:30:15,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:30:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-12-02 08:30:15,662 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-12-02 08:30:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:15,662 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-12-02 08:30:15,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:30:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-12-02 08:30:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:30:15,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:15,666 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:15,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:30:15,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:15,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:15,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1640475338, now seen corresponding path program 1 times [2024-12-02 08:30:15,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:15,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837254248] [2024-12-02 08:30:15,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:15,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:16,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:16,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837254248] [2024-12-02 08:30:16,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837254248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:16,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:16,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:30:16,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583221714] [2024-12-02 08:30:16,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:16,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:30:16,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:16,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:30:16,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:30:16,197 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:16,244 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-12-02 08:30:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:30:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-12-02 08:30:16,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:16,246 INFO L225 Difference]: With dead ends: 202 [2024-12-02 08:30:16,246 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 08:30:16,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:30:16,248 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:16,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:16,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 08:30:16,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-12-02 08:30:16,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:30:16,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-12-02 08:30:16,261 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-12-02 08:30:16,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:16,262 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-12-02 08:30:16,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-12-02 08:30:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:30:16,265 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:16,265 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:16,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:30:16,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:16,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash -879484596, now seen corresponding path program 1 times [2024-12-02 08:30:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:16,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579387092] [2024-12-02 08:30:16,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:16,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:16,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579387092] [2024-12-02 08:30:16,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579387092] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:16,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:16,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:30:16,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405560249] [2024-12-02 08:30:16,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:16,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:30:16,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:16,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:30:16,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:30:16,489 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:16,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:16,525 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-12-02 08:30:16,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:30:16,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-12-02 08:30:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:16,528 INFO L225 Difference]: With dead ends: 206 [2024-12-02 08:30:16,528 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 08:30:16,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:30:16,529 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:16,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 08:30:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-12-02 08:30:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:30:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-12-02 08:30:16,539 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-12-02 08:30:16,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:16,540 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-12-02 08:30:16,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:16,540 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-12-02 08:30:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:30:16,542 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:16,542 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:16,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:30:16,543 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:16,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash -877637554, now seen corresponding path program 1 times [2024-12-02 08:30:16,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:16,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335860525] [2024-12-02 08:30:16,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:16,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:16,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:16,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335860525] [2024-12-02 08:30:16,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335860525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:16,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:16,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:16,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115065073] [2024-12-02 08:30:16,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:16,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:16,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:16,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:16,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:16,993 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:17,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:17,155 INFO L93 Difference]: Finished difference Result 290 states and 408 transitions. [2024-12-02 08:30:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:17,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-12-02 08:30:17,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:17,158 INFO L225 Difference]: With dead ends: 290 [2024-12-02 08:30:17,158 INFO L226 Difference]: Without dead ends: 188 [2024-12-02 08:30:17,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:17,160 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 120 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:17,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 709 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-12-02 08:30:17,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2024-12-02 08:30:17,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 144 states have (on average 1.3125) internal successors, (189), 145 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 08:30:17,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 247 transitions. [2024-12-02 08:30:17,182 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 247 transitions. Word has length 144 [2024-12-02 08:30:17,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:17,183 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 247 transitions. [2024-12-02 08:30:17,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 247 transitions. [2024-12-02 08:30:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 08:30:17,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:17,186 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:17,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:30:17,187 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:17,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash -694713373, now seen corresponding path program 1 times [2024-12-02 08:30:17,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:17,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524545959] [2024-12-02 08:30:17,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:18,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524545959] [2024-12-02 08:30:18,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524545959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:18,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:18,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:30:18,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974928298] [2024-12-02 08:30:18,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:18,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:30:18,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:18,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:30:18,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:30:18,176 INFO L87 Difference]: Start difference. First operand 176 states and 247 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:18,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:18,389 INFO L93 Difference]: Finished difference Result 443 states and 620 transitions. [2024-12-02 08:30:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:30:18,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2024-12-02 08:30:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:18,393 INFO L225 Difference]: With dead ends: 443 [2024-12-02 08:30:18,393 INFO L226 Difference]: Without dead ends: 270 [2024-12-02 08:30:18,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:30:18,394 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 109 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:18,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 809 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-12-02 08:30:18,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 266. [2024-12-02 08:30:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 216 states have (on average 1.2962962962962963) internal successors, (280), 219 states have internal predecessors, (280), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 08:30:18,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 370 transitions. [2024-12-02 08:30:18,419 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 370 transitions. Word has length 145 [2024-12-02 08:30:18,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:18,420 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 370 transitions. [2024-12-02 08:30:18,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:18,420 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 370 transitions. [2024-12-02 08:30:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:30:18,422 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:18,422 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:18,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:30:18,422 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:18,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash 982540647, now seen corresponding path program 1 times [2024-12-02 08:30:18,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:18,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354590470] [2024-12-02 08:30:18,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:18,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:19,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:19,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354590470] [2024-12-02 08:30:19,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354590470] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:19,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:19,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:30:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375338475] [2024-12-02 08:30:19,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:19,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:30:19,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:19,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:30:19,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:30:19,209 INFO L87 Difference]: Start difference. First operand 266 states and 370 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:19,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:19,451 INFO L93 Difference]: Finished difference Result 517 states and 717 transitions. [2024-12-02 08:30:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:30:19,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-12-02 08:30:19,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:19,454 INFO L225 Difference]: With dead ends: 517 [2024-12-02 08:30:19,454 INFO L226 Difference]: Without dead ends: 275 [2024-12-02 08:30:19,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:30:19,456 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 150 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:19,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 874 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:30:19,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-12-02 08:30:19,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2024-12-02 08:30:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 222 states have (on average 1.2882882882882882) internal successors, (286), 225 states have internal predecessors, (286), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 08:30:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 376 transitions. [2024-12-02 08:30:19,480 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 376 transitions. Word has length 146 [2024-12-02 08:30:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:19,480 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 376 transitions. [2024-12-02 08:30:19,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 376 transitions. [2024-12-02 08:30:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:30:19,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:19,483 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:19,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:30:19,483 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:19,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash -269161938, now seen corresponding path program 1 times [2024-12-02 08:30:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:19,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396703257] [2024-12-02 08:30:19,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:19,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:19,773 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:19,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:19,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396703257] [2024-12-02 08:30:19,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396703257] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:19,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:19,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:19,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455027357] [2024-12-02 08:30:19,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:19,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:19,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:19,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:19,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:19,775 INFO L87 Difference]: Start difference. First operand 273 states and 376 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:19,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:19,849 INFO L93 Difference]: Finished difference Result 512 states and 704 transitions. [2024-12-02 08:30:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:19,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-12-02 08:30:19,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:19,853 INFO L225 Difference]: With dead ends: 512 [2024-12-02 08:30:19,853 INFO L226 Difference]: Without dead ends: 263 [2024-12-02 08:30:19,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:19,855 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 53 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:19,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 612 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:19,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-12-02 08:30:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2024-12-02 08:30:19,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 210 states have (on average 1.2666666666666666) internal successors, (266), 213 states have internal predecessors, (266), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 08:30:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 356 transitions. [2024-12-02 08:30:19,878 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 356 transitions. Word has length 146 [2024-12-02 08:30:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:19,879 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 356 transitions. [2024-12-02 08:30:19,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 356 transitions. [2024-12-02 08:30:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:30:19,881 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:19,881 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:19,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:30:19,882 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:19,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:19,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1492113649, now seen corresponding path program 1 times [2024-12-02 08:30:19,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:19,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988991795] [2024-12-02 08:30:19,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:19,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:20,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:20,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988991795] [2024-12-02 08:30:20,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988991795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:20,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:20,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:20,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772053647] [2024-12-02 08:30:20,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:20,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:20,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:20,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:20,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:20,189 INFO L87 Difference]: Start difference. First operand 261 states and 356 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:20,326 INFO L93 Difference]: Finished difference Result 627 states and 858 transitions. [2024-12-02 08:30:20,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:30:20,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-12-02 08:30:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:20,329 INFO L225 Difference]: With dead ends: 627 [2024-12-02 08:30:20,329 INFO L226 Difference]: Without dead ends: 390 [2024-12-02 08:30:20,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:20,331 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 86 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:20,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 645 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-12-02 08:30:20,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 385. [2024-12-02 08:30:20,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 314 states have (on average 1.2802547770700636) internal successors, (402), 319 states have internal predecessors, (402), 63 states have call successors, (63), 7 states have call predecessors, (63), 7 states have return successors, (63), 58 states have call predecessors, (63), 63 states have call successors, (63) [2024-12-02 08:30:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 528 transitions. [2024-12-02 08:30:20,355 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 528 transitions. Word has length 147 [2024-12-02 08:30:20,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:20,356 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 528 transitions. [2024-12-02 08:30:20,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 528 transitions. [2024-12-02 08:30:20,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:30:20,358 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:20,358 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:20,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:30:20,358 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:20,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:20,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1431681951, now seen corresponding path program 1 times [2024-12-02 08:30:20,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:20,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866874307] [2024-12-02 08:30:20,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:20,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:20,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:20,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866874307] [2024-12-02 08:30:20,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866874307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:20,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:20,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:30:20,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014598303] [2024-12-02 08:30:20,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:20,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:30:20,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:20,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:30:20,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:30:20,888 INFO L87 Difference]: Start difference. First operand 385 states and 528 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:21,383 INFO L93 Difference]: Finished difference Result 936 states and 1269 transitions. [2024-12-02 08:30:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:30:21,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-12-02 08:30:21,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:21,387 INFO L225 Difference]: With dead ends: 936 [2024-12-02 08:30:21,387 INFO L226 Difference]: Without dead ends: 575 [2024-12-02 08:30:21,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:30:21,388 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 129 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:21,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 833 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:30:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-12-02 08:30:21,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 483. [2024-12-02 08:30:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 405 states have (on average 1.2839506172839505) internal successors, (520), 412 states have internal predecessors, (520), 67 states have call successors, (67), 10 states have call predecessors, (67), 10 states have return successors, (67), 60 states have call predecessors, (67), 67 states have call successors, (67) [2024-12-02 08:30:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 654 transitions. [2024-12-02 08:30:21,425 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 654 transitions. Word has length 147 [2024-12-02 08:30:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:21,425 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 654 transitions. [2024-12-02 08:30:21,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 654 transitions. [2024-12-02 08:30:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:30:21,428 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:21,428 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:21,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:30:21,428 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:21,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:21,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1583421667, now seen corresponding path program 1 times [2024-12-02 08:30:21,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:21,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126452031] [2024-12-02 08:30:21,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:22,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:22,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126452031] [2024-12-02 08:30:22,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126452031] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:22,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:22,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:30:22,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51973299] [2024-12-02 08:30:22,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:22,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:30:22,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:22,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:30:22,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:30:22,186 INFO L87 Difference]: Start difference. First operand 483 states and 654 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:22,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:22,606 INFO L93 Difference]: Finished difference Result 958 states and 1295 transitions. [2024-12-02 08:30:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:30:22,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-12-02 08:30:22,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:22,610 INFO L225 Difference]: With dead ends: 958 [2024-12-02 08:30:22,610 INFO L226 Difference]: Without dead ends: 503 [2024-12-02 08:30:22,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:30:22,612 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 307 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:22,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 986 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:30:22,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-12-02 08:30:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 499. [2024-12-02 08:30:22,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 415 states have (on average 1.272289156626506) internal successors, (528), 422 states have internal predecessors, (528), 71 states have call successors, (71), 12 states have call predecessors, (71), 12 states have return successors, (71), 64 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 08:30:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 670 transitions. [2024-12-02 08:30:22,663 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 670 transitions. Word has length 147 [2024-12-02 08:30:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:22,664 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 670 transitions. [2024-12-02 08:30:22,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 670 transitions. [2024-12-02 08:30:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:30:22,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:22,666 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:22,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:30:22,667 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:22,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:22,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1572230561, now seen corresponding path program 1 times [2024-12-02 08:30:22,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:22,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280822576] [2024-12-02 08:30:22,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:22,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:23,135 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:23,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:23,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280822576] [2024-12-02 08:30:23,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280822576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:23,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:23,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:30:23,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812772282] [2024-12-02 08:30:23,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:23,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:30:23,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:23,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:30:23,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:30:23,137 INFO L87 Difference]: Start difference. First operand 499 states and 670 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:23,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:23,300 INFO L93 Difference]: Finished difference Result 1049 states and 1409 transitions. [2024-12-02 08:30:23,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:30:23,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-12-02 08:30:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:23,304 INFO L225 Difference]: With dead ends: 1049 [2024-12-02 08:30:23,304 INFO L226 Difference]: Without dead ends: 578 [2024-12-02 08:30:23,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:30:23,306 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 121 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:23,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1288 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:23,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-12-02 08:30:23,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 565. [2024-12-02 08:30:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 456 states have (on average 1.2478070175438596) internal successors, (569), 463 states have internal predecessors, (569), 92 states have call successors, (92), 16 states have call predecessors, (92), 16 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 08:30:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 753 transitions. [2024-12-02 08:30:23,366 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 753 transitions. Word has length 147 [2024-12-02 08:30:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:23,366 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 753 transitions. [2024-12-02 08:30:23,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:23,366 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 753 transitions. [2024-12-02 08:30:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:30:23,369 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:23,369 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:23,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:30:23,369 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:23,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1442873057, now seen corresponding path program 1 times [2024-12-02 08:30:23,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:23,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925316842] [2024-12-02 08:30:23,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:23,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:24,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:24,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925316842] [2024-12-02 08:30:24,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925316842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:24,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:24,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:30:24,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242596540] [2024-12-02 08:30:24,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:24,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:30:24,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:24,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:30:24,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:30:24,422 INFO L87 Difference]: Start difference. First operand 565 states and 753 transitions. Second operand has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:25,796 INFO L93 Difference]: Finished difference Result 1192 states and 1580 transitions. [2024-12-02 08:30:25,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:30:25,797 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 147 [2024-12-02 08:30:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:25,802 INFO L225 Difference]: With dead ends: 1192 [2024-12-02 08:30:25,802 INFO L226 Difference]: Without dead ends: 655 [2024-12-02 08:30:25,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:30:25,804 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 457 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:25,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 955 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:30:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-12-02 08:30:25,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 565. [2024-12-02 08:30:25,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 454 states have (on average 1.2400881057268722) internal successors, (563), 461 states have internal predecessors, (563), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 08:30:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 747 transitions. [2024-12-02 08:30:25,862 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 747 transitions. Word has length 147 [2024-12-02 08:30:25,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:25,863 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 747 transitions. [2024-12-02 08:30:25,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 747 transitions. [2024-12-02 08:30:25,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:30:25,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:25,865 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:25,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:30:25,865 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:25,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:25,866 INFO L85 PathProgramCache]: Analyzing trace with hash 781233282, now seen corresponding path program 1 times [2024-12-02 08:30:25,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:25,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30435349] [2024-12-02 08:30:25,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:25,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:26,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:26,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30435349] [2024-12-02 08:30:26,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30435349] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:26,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:26,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:30:26,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485275854] [2024-12-02 08:30:26,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:26,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:30:26,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:26,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:30:26,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:30:26,684 INFO L87 Difference]: Start difference. First operand 565 states and 747 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:27,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:27,234 INFO L93 Difference]: Finished difference Result 1236 states and 1643 transitions. [2024-12-02 08:30:27,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:30:27,235 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-12-02 08:30:27,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:27,240 INFO L225 Difference]: With dead ends: 1236 [2024-12-02 08:30:27,240 INFO L226 Difference]: Without dead ends: 699 [2024-12-02 08:30:27,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:30:27,243 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 88 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:27,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1509 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:30:27,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-12-02 08:30:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 695. [2024-12-02 08:30:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 570 states have (on average 1.2578947368421052) internal successors, (717), 579 states have internal predecessors, (717), 104 states have call successors, (104), 20 states have call predecessors, (104), 20 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 925 transitions. [2024-12-02 08:30:27,322 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 925 transitions. Word has length 148 [2024-12-02 08:30:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:27,322 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 925 transitions. [2024-12-02 08:30:27,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 925 transitions. [2024-12-02 08:30:27,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:30:27,325 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:27,325 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:27,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:30:27,325 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:27,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:27,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1132673159, now seen corresponding path program 1 times [2024-12-02 08:30:27,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:27,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274501516] [2024-12-02 08:30:27,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:27,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:27,542 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:27,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:27,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274501516] [2024-12-02 08:30:27,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274501516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:27,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:27,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:27,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012331677] [2024-12-02 08:30:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:27,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:27,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:27,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:27,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:27,544 INFO L87 Difference]: Start difference. First operand 695 states and 925 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:27,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:27,699 INFO L93 Difference]: Finished difference Result 1365 states and 1818 transitions. [2024-12-02 08:30:27,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:27,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-12-02 08:30:27,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:27,703 INFO L225 Difference]: With dead ends: 1365 [2024-12-02 08:30:27,703 INFO L226 Difference]: Without dead ends: 698 [2024-12-02 08:30:27,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:27,705 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 96 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:27,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 585 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:27,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-12-02 08:30:27,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 695. [2024-12-02 08:30:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 570 states have (on average 1.256140350877193) internal successors, (716), 579 states have internal predecessors, (716), 104 states have call successors, (104), 20 states have call predecessors, (104), 20 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 924 transitions. [2024-12-02 08:30:27,767 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 924 transitions. Word has length 148 [2024-12-02 08:30:27,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:27,767 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 924 transitions. [2024-12-02 08:30:27,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:27,767 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 924 transitions. [2024-12-02 08:30:27,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:30:27,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:27,769 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:27,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:30:27,769 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:27,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1634908125, now seen corresponding path program 1 times [2024-12-02 08:30:27,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:27,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112681319] [2024-12-02 08:30:27,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:27,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:27,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:27,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112681319] [2024-12-02 08:30:27,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112681319] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:27,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:27,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367762029] [2024-12-02 08:30:27,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:27,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:27,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:27,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:27,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:27,952 INFO L87 Difference]: Start difference. First operand 695 states and 924 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:28,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:28,090 INFO L93 Difference]: Finished difference Result 1365 states and 1816 transitions. [2024-12-02 08:30:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:28,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-12-02 08:30:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:28,093 INFO L225 Difference]: With dead ends: 1365 [2024-12-02 08:30:28,094 INFO L226 Difference]: Without dead ends: 698 [2024-12-02 08:30:28,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:28,095 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 100 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:28,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 579 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:28,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-12-02 08:30:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 695. [2024-12-02 08:30:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 570 states have (on average 1.2543859649122806) internal successors, (715), 579 states have internal predecessors, (715), 104 states have call successors, (104), 20 states have call predecessors, (104), 20 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:28,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 923 transitions. [2024-12-02 08:30:28,135 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 923 transitions. Word has length 148 [2024-12-02 08:30:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:28,135 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 923 transitions. [2024-12-02 08:30:28,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:28,136 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 923 transitions. [2024-12-02 08:30:28,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:30:28,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:28,137 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:28,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:30:28,137 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:28,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1071711269, now seen corresponding path program 1 times [2024-12-02 08:30:28,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:28,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996010394] [2024-12-02 08:30:28,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:28,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:28,287 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:28,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:28,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996010394] [2024-12-02 08:30:28,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996010394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:28,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:28,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:28,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940862007] [2024-12-02 08:30:28,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:28,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:28,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:28,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:28,288 INFO L87 Difference]: Start difference. First operand 695 states and 923 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:28,417 INFO L93 Difference]: Finished difference Result 1363 states and 1809 transitions. [2024-12-02 08:30:28,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:28,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-12-02 08:30:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:28,421 INFO L225 Difference]: With dead ends: 1363 [2024-12-02 08:30:28,421 INFO L226 Difference]: Without dead ends: 696 [2024-12-02 08:30:28,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:28,423 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 65 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:28,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 708 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:28,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-12-02 08:30:28,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 693. [2024-12-02 08:30:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 567 states have (on average 1.2504409171075839) internal successors, (709), 576 states have internal predecessors, (709), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 917 transitions. [2024-12-02 08:30:28,463 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 917 transitions. Word has length 148 [2024-12-02 08:30:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:28,463 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 917 transitions. [2024-12-02 08:30:28,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 917 transitions. [2024-12-02 08:30:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:30:28,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:28,465 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:28,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:30:28,465 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:28,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash -365804597, now seen corresponding path program 1 times [2024-12-02 08:30:28,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:28,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204927477] [2024-12-02 08:30:28,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:28,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:28,598 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:28,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:28,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204927477] [2024-12-02 08:30:28,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204927477] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:28,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:28,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:28,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004302172] [2024-12-02 08:30:28,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:28,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:28,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:28,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:28,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:28,599 INFO L87 Difference]: Start difference. First operand 693 states and 917 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:28,678 INFO L93 Difference]: Finished difference Result 1338 states and 1769 transitions. [2024-12-02 08:30:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:28,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-12-02 08:30:28,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:28,683 INFO L225 Difference]: With dead ends: 1338 [2024-12-02 08:30:28,683 INFO L226 Difference]: Without dead ends: 673 [2024-12-02 08:30:28,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:28,685 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 55 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:28,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 658 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:28,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-12-02 08:30:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 671. [2024-12-02 08:30:28,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 545 states have (on average 1.234862385321101) internal successors, (673), 554 states have internal predecessors, (673), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 881 transitions. [2024-12-02 08:30:28,722 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 881 transitions. Word has length 149 [2024-12-02 08:30:28,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:28,722 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 881 transitions. [2024-12-02 08:30:28,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:28,722 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 881 transitions. [2024-12-02 08:30:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:30:28,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:28,723 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:28,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:30:28,724 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:28,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:28,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1711229009, now seen corresponding path program 1 times [2024-12-02 08:30:28,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:28,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345527425] [2024-12-02 08:30:28,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:28,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:30,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:30,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345527425] [2024-12-02 08:30:30,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345527425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:30,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:30,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 08:30:30,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983456101] [2024-12-02 08:30:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:30,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 08:30:30,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:30,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 08:30:30,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:30:30,493 INFO L87 Difference]: Start difference. First operand 671 states and 881 transitions. Second operand has 18 states, 16 states have (on average 3.5625) internal successors, (57), 17 states have internal predecessors, (57), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:31,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:31,768 INFO L93 Difference]: Finished difference Result 1369 states and 1793 transitions. [2024-12-02 08:30:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 08:30:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.5625) internal successors, (57), 17 states have internal predecessors, (57), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 149 [2024-12-02 08:30:31,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:31,774 INFO L225 Difference]: With dead ends: 1369 [2024-12-02 08:30:31,774 INFO L226 Difference]: Without dead ends: 726 [2024-12-02 08:30:31,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:30:31,777 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 436 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:31,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 1156 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:30:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-12-02 08:30:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 674. [2024-12-02 08:30:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 548 states have (on average 1.2335766423357664) internal successors, (676), 557 states have internal predecessors, (676), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:31,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 884 transitions. [2024-12-02 08:30:31,849 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 884 transitions. Word has length 149 [2024-12-02 08:30:31,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:31,849 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 884 transitions. [2024-12-02 08:30:31,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.5625) internal successors, (57), 17 states have internal predecessors, (57), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 884 transitions. [2024-12-02 08:30:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:30:31,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:31,851 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:31,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:30:31,851 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:31,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1376348877, now seen corresponding path program 1 times [2024-12-02 08:30:31,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:31,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291480674] [2024-12-02 08:30:31,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:31,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:32,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291480674] [2024-12-02 08:30:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291480674] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:30:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252032961] [2024-12-02 08:30:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:32,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:30:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:32,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:30:32,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:30:32,619 INFO L87 Difference]: Start difference. First operand 674 states and 884 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:33,463 INFO L93 Difference]: Finished difference Result 1339 states and 1758 transitions. [2024-12-02 08:30:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:30:33,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 149 [2024-12-02 08:30:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:33,468 INFO L225 Difference]: With dead ends: 1339 [2024-12-02 08:30:33,468 INFO L226 Difference]: Without dead ends: 693 [2024-12-02 08:30:33,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:30:33,470 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 407 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:33,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1555 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:30:33,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-12-02 08:30:33,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 677. [2024-12-02 08:30:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 551 states have (on average 1.2323049001814883) internal successors, (679), 560 states have internal predecessors, (679), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 887 transitions. [2024-12-02 08:30:33,531 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 887 transitions. Word has length 149 [2024-12-02 08:30:33,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:33,531 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 887 transitions. [2024-12-02 08:30:33,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 887 transitions. [2024-12-02 08:30:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:33,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:33,533 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:33,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:30:33,533 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:33,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:33,533 INFO L85 PathProgramCache]: Analyzing trace with hash -823684889, now seen corresponding path program 1 times [2024-12-02 08:30:33,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:33,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627778808] [2024-12-02 08:30:33,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:33,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:34,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:34,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627778808] [2024-12-02 08:30:34,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627778808] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:34,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:34,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:30:34,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452820627] [2024-12-02 08:30:34,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:34,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:30:34,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:34,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:30:34,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:30:34,163 INFO L87 Difference]: Start difference. First operand 677 states and 887 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:34,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:34,549 INFO L93 Difference]: Finished difference Result 1441 states and 1892 transitions. [2024-12-02 08:30:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:30:34,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:30:34,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:34,554 INFO L225 Difference]: With dead ends: 1441 [2024-12-02 08:30:34,554 INFO L226 Difference]: Without dead ends: 792 [2024-12-02 08:30:34,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:30:34,555 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 65 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:34,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 878 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:30:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-12-02 08:30:34,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 786. [2024-12-02 08:30:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 654 states have (on average 1.2446483180428134) internal successors, (814), 665 states have internal predecessors, (814), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:30:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1030 transitions. [2024-12-02 08:30:34,602 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1030 transitions. Word has length 150 [2024-12-02 08:30:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:34,602 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1030 transitions. [2024-12-02 08:30:34,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1030 transitions. [2024-12-02 08:30:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:34,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:34,604 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:34,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:30:34,604 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:34,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:34,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1315522604, now seen corresponding path program 1 times [2024-12-02 08:30:34,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:34,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420531206] [2024-12-02 08:30:34,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:34,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:37,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:37,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420531206] [2024-12-02 08:30:37,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420531206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:37,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:37,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-12-02 08:30:37,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690583385] [2024-12-02 08:30:37,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:37,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 08:30:37,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:37,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 08:30:37,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:30:37,136 INFO L87 Difference]: Start difference. First operand 786 states and 1030 transitions. Second operand has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 24 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:40,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:40,108 INFO L93 Difference]: Finished difference Result 1554 states and 2036 transitions. [2024-12-02 08:30:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 08:30:40,109 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 24 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 150 [2024-12-02 08:30:40,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:40,113 INFO L225 Difference]: With dead ends: 1554 [2024-12-02 08:30:40,113 INFO L226 Difference]: Without dead ends: 796 [2024-12-02 08:30:40,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=251, Invalid=1471, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 08:30:40,115 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 584 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:40,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1618 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 08:30:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-12-02 08:30:40,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 789. [2024-12-02 08:30:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 657 states have (on average 1.243531202435312) internal successors, (817), 668 states have internal predecessors, (817), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:30:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1033 transitions. [2024-12-02 08:30:40,186 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1033 transitions. Word has length 150 [2024-12-02 08:30:40,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:40,187 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1033 transitions. [2024-12-02 08:30:40,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 24 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1033 transitions. [2024-12-02 08:30:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:40,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:40,189 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:40,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:30:40,189 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:40,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:40,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1477137701, now seen corresponding path program 1 times [2024-12-02 08:30:40,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:40,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530999809] [2024-12-02 08:30:40,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:40,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:40,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:40,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530999809] [2024-12-02 08:30:40,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530999809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:40,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:40,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:40,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668821355] [2024-12-02 08:30:40,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:40,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:40,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:40,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:40,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:40,502 INFO L87 Difference]: Start difference. First operand 789 states and 1033 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:40,665 INFO L93 Difference]: Finished difference Result 1641 states and 2150 transitions. [2024-12-02 08:30:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:40,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:30:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:40,669 INFO L225 Difference]: With dead ends: 1641 [2024-12-02 08:30:40,669 INFO L226 Difference]: Without dead ends: 880 [2024-12-02 08:30:40,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:40,671 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 61 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:40,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 573 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2024-12-02 08:30:40,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 874. [2024-12-02 08:30:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 736 states have (on average 1.247282608695652) internal successors, (918), 749 states have internal predecessors, (918), 112 states have call successors, (112), 25 states have call predecessors, (112), 25 states have return successors, (112), 99 states have call predecessors, (112), 112 states have call successors, (112) [2024-12-02 08:30:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1142 transitions. [2024-12-02 08:30:40,722 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1142 transitions. Word has length 150 [2024-12-02 08:30:40,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:40,723 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1142 transitions. [2024-12-02 08:30:40,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:40,723 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1142 transitions. [2024-12-02 08:30:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:40,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:40,724 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:40,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:30:40,724 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:40,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2046485093, now seen corresponding path program 1 times [2024-12-02 08:30:40,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:40,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987863507] [2024-12-02 08:30:40,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:40,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:40,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987863507] [2024-12-02 08:30:40,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987863507] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:40,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:40,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:40,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033089310] [2024-12-02 08:30:40,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:40,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:40,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:40,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:40,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:40,916 INFO L87 Difference]: Start difference. First operand 874 states and 1142 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:41,106 INFO L93 Difference]: Finished difference Result 1726 states and 2255 transitions. [2024-12-02 08:30:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:41,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:30:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:41,110 INFO L225 Difference]: With dead ends: 1726 [2024-12-02 08:30:41,110 INFO L226 Difference]: Without dead ends: 880 [2024-12-02 08:30:41,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:41,111 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 68 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:41,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 574 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2024-12-02 08:30:41,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 874. [2024-12-02 08:30:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 736 states have (on average 1.2459239130434783) internal successors, (917), 749 states have internal predecessors, (917), 112 states have call successors, (112), 25 states have call predecessors, (112), 25 states have return successors, (112), 99 states have call predecessors, (112), 112 states have call successors, (112) [2024-12-02 08:30:41,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1141 transitions. [2024-12-02 08:30:41,153 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1141 transitions. Word has length 150 [2024-12-02 08:30:41,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:41,153 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1141 transitions. [2024-12-02 08:30:41,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:41,153 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1141 transitions. [2024-12-02 08:30:41,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:41,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:41,154 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:41,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:30:41,155 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:41,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:41,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2108524707, now seen corresponding path program 1 times [2024-12-02 08:30:41,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:41,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66946354] [2024-12-02 08:30:41,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:41,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:41,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66946354] [2024-12-02 08:30:41,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66946354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:41,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:41,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:30:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826921451] [2024-12-02 08:30:41,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:41,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:30:41,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:41,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:30:41,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:30:41,841 INFO L87 Difference]: Start difference. First operand 874 states and 1141 transitions. Second operand has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:42,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:42,699 INFO L93 Difference]: Finished difference Result 1814 states and 2366 transitions. [2024-12-02 08:30:42,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:30:42,699 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:30:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:42,704 INFO L225 Difference]: With dead ends: 1814 [2024-12-02 08:30:42,704 INFO L226 Difference]: Without dead ends: 968 [2024-12-02 08:30:42,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:30:42,706 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 278 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:42,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1062 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:30:42,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-12-02 08:30:42,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 874. [2024-12-02 08:30:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 736 states have (on average 1.2432065217391304) internal successors, (915), 749 states have internal predecessors, (915), 112 states have call successors, (112), 25 states have call predecessors, (112), 25 states have return successors, (112), 99 states have call predecessors, (112), 112 states have call successors, (112) [2024-12-02 08:30:42,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1139 transitions. [2024-12-02 08:30:42,747 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1139 transitions. Word has length 150 [2024-12-02 08:30:42,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:42,747 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1139 transitions. [2024-12-02 08:30:42,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1139 transitions. [2024-12-02 08:30:42,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:42,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:42,749 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:42,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:30:42,749 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:42,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:42,749 INFO L85 PathProgramCache]: Analyzing trace with hash 562518505, now seen corresponding path program 1 times [2024-12-02 08:30:42,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:42,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79620290] [2024-12-02 08:30:42,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:42,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:43,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:43,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79620290] [2024-12-02 08:30:43,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79620290] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:43,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:43,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:30:43,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033557477] [2024-12-02 08:30:43,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:43,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:30:43,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:43,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:30:43,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:30:43,403 INFO L87 Difference]: Start difference. First operand 874 states and 1139 transitions. Second operand has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:44,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:44,124 INFO L93 Difference]: Finished difference Result 1734 states and 2257 transitions. [2024-12-02 08:30:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:30:44,125 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 150 [2024-12-02 08:30:44,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:44,127 INFO L225 Difference]: With dead ends: 1734 [2024-12-02 08:30:44,127 INFO L226 Difference]: Without dead ends: 888 [2024-12-02 08:30:44,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:30:44,129 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 348 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:44,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 930 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:30:44,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-12-02 08:30:44,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 818. [2024-12-02 08:30:44,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 684 states have (on average 1.239766081871345) internal successors, (848), 695 states have internal predecessors, (848), 108 states have call successors, (108), 25 states have call predecessors, (108), 25 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:30:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1064 transitions. [2024-12-02 08:30:44,199 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1064 transitions. Word has length 150 [2024-12-02 08:30:44,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:44,199 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1064 transitions. [2024-12-02 08:30:44,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:30:44,199 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1064 transitions. [2024-12-02 08:30:44,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:44,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:44,201 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:44,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:30:44,201 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:44,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash 70680790, now seen corresponding path program 1 times [2024-12-02 08:30:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:44,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869871344] [2024-12-02 08:30:44,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:44,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:44,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869871344] [2024-12-02 08:30:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869871344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:44,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:44,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:30:44,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5280545] [2024-12-02 08:30:44,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:44,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:30:44,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:44,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:30:44,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:30:44,635 INFO L87 Difference]: Start difference. First operand 818 states and 1064 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:45,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:45,013 INFO L93 Difference]: Finished difference Result 1686 states and 2186 transitions. [2024-12-02 08:30:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:30:45,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:30:45,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:45,017 INFO L225 Difference]: With dead ends: 1686 [2024-12-02 08:30:45,017 INFO L226 Difference]: Without dead ends: 896 [2024-12-02 08:30:45,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:30:45,019 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 214 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:45,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 533 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:30:45,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2024-12-02 08:30:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 750. [2024-12-02 08:30:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 620 states have (on average 1.2258064516129032) internal successors, (760), 629 states have internal predecessors, (760), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 968 transitions. [2024-12-02 08:30:45,094 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 968 transitions. Word has length 150 [2024-12-02 08:30:45,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:45,094 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 968 transitions. [2024-12-02 08:30:45,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 968 transitions. [2024-12-02 08:30:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:45,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:45,095 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:45,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:30:45,095 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:45,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1431626201, now seen corresponding path program 1 times [2024-12-02 08:30:45,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:45,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764065868] [2024-12-02 08:30:45,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:45,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:45,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:45,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764065868] [2024-12-02 08:30:45,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764065868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:45,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:45,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:30:45,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135970324] [2024-12-02 08:30:45,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:45,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:30:45,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:45,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:30:45,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:30:45,286 INFO L87 Difference]: Start difference. First operand 750 states and 968 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:45,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:45,465 INFO L93 Difference]: Finished difference Result 1556 states and 2004 transitions. [2024-12-02 08:30:45,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:30:45,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:30:45,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:45,469 INFO L225 Difference]: With dead ends: 1556 [2024-12-02 08:30:45,469 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 08:30:45,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:30:45,470 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 64 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:45,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 843 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 08:30:45,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 738. [2024-12-02 08:30:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 608 states have (on average 1.2203947368421053) internal successors, (742), 617 states have internal predecessors, (742), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 08:30:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 950 transitions. [2024-12-02 08:30:45,517 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 950 transitions. Word has length 150 [2024-12-02 08:30:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:45,517 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 950 transitions. [2024-12-02 08:30:45,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 950 transitions. [2024-12-02 08:30:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:45,518 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:45,518 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:45,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:30:45,518 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:45,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:45,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1923463916, now seen corresponding path program 1 times [2024-12-02 08:30:45,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:45,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682409366] [2024-12-02 08:30:45,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:45,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:46,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:46,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682409366] [2024-12-02 08:30:46,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682409366] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:46,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:46,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:30:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96864048] [2024-12-02 08:30:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:46,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:30:46,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:46,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:30:46,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:30:46,498 INFO L87 Difference]: Start difference. First operand 738 states and 950 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:47,369 INFO L93 Difference]: Finished difference Result 1607 states and 2069 transitions. [2024-12-02 08:30:47,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 08:30:47,370 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:30:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:47,373 INFO L225 Difference]: With dead ends: 1607 [2024-12-02 08:30:47,373 INFO L226 Difference]: Without dead ends: 897 [2024-12-02 08:30:47,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:30:47,374 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 391 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:47,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1900 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:30:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-12-02 08:30:47,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 875. [2024-12-02 08:30:47,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 710 states have (on average 1.2098591549295774) internal successors, (859), 721 states have internal predecessors, (859), 133 states have call successors, (133), 31 states have call predecessors, (133), 31 states have return successors, (133), 122 states have call predecessors, (133), 133 states have call successors, (133) [2024-12-02 08:30:47,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1125 transitions. [2024-12-02 08:30:47,422 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1125 transitions. Word has length 150 [2024-12-02 08:30:47,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:47,423 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1125 transitions. [2024-12-02 08:30:47,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1125 transitions. [2024-12-02 08:30:47,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:47,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:47,424 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:47,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:30:47,424 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:47,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:47,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1681350053, now seen corresponding path program 1 times [2024-12-02 08:30:47,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:47,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856856648] [2024-12-02 08:30:47,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:47,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:47,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:47,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856856648] [2024-12-02 08:30:47,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856856648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:47,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:47,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:30:47,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116601259] [2024-12-02 08:30:47,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:47,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:30:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:47,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:30:47,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:30:47,639 INFO L87 Difference]: Start difference. First operand 875 states and 1125 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:48,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:48,034 INFO L93 Difference]: Finished difference Result 1942 states and 2493 transitions. [2024-12-02 08:30:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:30:48,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:30:48,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:48,039 INFO L225 Difference]: With dead ends: 1942 [2024-12-02 08:30:48,039 INFO L226 Difference]: Without dead ends: 1095 [2024-12-02 08:30:48,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:30:48,041 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 137 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:48,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1523 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:30:48,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-12-02 08:30:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 894. [2024-12-02 08:30:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 731 states have (on average 1.213406292749658) internal successors, (887), 742 states have internal predecessors, (887), 131 states have call successors, (131), 31 states have call predecessors, (131), 31 states have return successors, (131), 120 states have call predecessors, (131), 131 states have call successors, (131) [2024-12-02 08:30:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1149 transitions. [2024-12-02 08:30:48,121 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1149 transitions. Word has length 150 [2024-12-02 08:30:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:48,121 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1149 transitions. [2024-12-02 08:30:48,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1149 transitions. [2024-12-02 08:30:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:48,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:48,123 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:48,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:30:48,123 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:48,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:48,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1795968793, now seen corresponding path program 1 times [2024-12-02 08:30:48,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:48,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913385171] [2024-12-02 08:30:48,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:48,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:48,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:48,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913385171] [2024-12-02 08:30:48,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913385171] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:48,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:48,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:30:48,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151077011] [2024-12-02 08:30:48,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:48,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:30:48,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:48,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:30:48,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:30:48,361 INFO L87 Difference]: Start difference. First operand 894 states and 1149 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:48,790 INFO L93 Difference]: Finished difference Result 1856 states and 2384 transitions. [2024-12-02 08:30:48,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:30:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:30:48,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:48,795 INFO L225 Difference]: With dead ends: 1856 [2024-12-02 08:30:48,795 INFO L226 Difference]: Without dead ends: 986 [2024-12-02 08:30:48,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:30:48,798 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 190 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:48,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 951 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:30:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-12-02 08:30:48,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 882. [2024-12-02 08:30:48,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 719 states have (on average 1.211404728789986) internal successors, (871), 730 states have internal predecessors, (871), 131 states have call successors, (131), 31 states have call predecessors, (131), 31 states have return successors, (131), 120 states have call predecessors, (131), 131 states have call successors, (131) [2024-12-02 08:30:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1133 transitions. [2024-12-02 08:30:48,861 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1133 transitions. Word has length 150 [2024-12-02 08:30:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:48,861 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1133 transitions. [2024-12-02 08:30:48,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:48,862 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1133 transitions. [2024-12-02 08:30:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:48,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:48,862 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:48,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 08:30:48,863 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:48,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:48,863 INFO L85 PathProgramCache]: Analyzing trace with hash -975777600, now seen corresponding path program 1 times [2024-12-02 08:30:48,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:48,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734151785] [2024-12-02 08:30:48,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:49,621 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:49,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:49,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734151785] [2024-12-02 08:30:49,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734151785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:49,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:49,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:30:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957851427] [2024-12-02 08:30:49,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:49,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:30:49,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:49,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:30:49,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:30:49,622 INFO L87 Difference]: Start difference. First operand 882 states and 1133 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:50,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:50,528 INFO L93 Difference]: Finished difference Result 2107 states and 2689 transitions. [2024-12-02 08:30:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:30:50,529 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:30:50,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:50,532 INFO L225 Difference]: With dead ends: 2107 [2024-12-02 08:30:50,532 INFO L226 Difference]: Without dead ends: 1249 [2024-12-02 08:30:50,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:30:50,534 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 434 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:50,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1698 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:30:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-12-02 08:30:50,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 844. [2024-12-02 08:30:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 708 states have (on average 1.2090395480225988) internal successors, (856), 717 states have internal predecessors, (856), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 97 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 08:30:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1068 transitions. [2024-12-02 08:30:50,587 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1068 transitions. Word has length 150 [2024-12-02 08:30:50,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:50,588 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1068 transitions. [2024-12-02 08:30:50,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:50,588 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1068 transitions. [2024-12-02 08:30:50,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:30:50,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:50,589 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:50,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:30:50,589 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:50,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1513751362, now seen corresponding path program 1 times [2024-12-02 08:30:50,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:50,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448739622] [2024-12-02 08:30:50,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:50,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:51,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:51,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448739622] [2024-12-02 08:30:51,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448739622] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:51,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:51,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:30:51,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072803468] [2024-12-02 08:30:51,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:51,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:30:51,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:51,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:30:51,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:30:51,211 INFO L87 Difference]: Start difference. First operand 844 states and 1068 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:51,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:51,748 INFO L93 Difference]: Finished difference Result 1674 states and 2120 transitions. [2024-12-02 08:30:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:30:51,749 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:30:51,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:51,753 INFO L225 Difference]: With dead ends: 1674 [2024-12-02 08:30:51,753 INFO L226 Difference]: Without dead ends: 854 [2024-12-02 08:30:51,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:30:51,754 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 195 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:51,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1370 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:30:51,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-12-02 08:30:51,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 771. [2024-12-02 08:30:51,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 635 states have (on average 1.2094488188976378) internal successors, (768), 644 states have internal predecessors, (768), 106 states have call successors, (106), 29 states have call predecessors, (106), 29 states have return successors, (106), 97 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 08:30:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 980 transitions. [2024-12-02 08:30:51,818 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 980 transitions. Word has length 150 [2024-12-02 08:30:51,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:51,819 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 980 transitions. [2024-12-02 08:30:51,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:51,819 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 980 transitions. [2024-12-02 08:30:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:30:51,820 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:51,820 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:51,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 08:30:51,820 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:51,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:51,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1377799030, now seen corresponding path program 1 times [2024-12-02 08:30:51,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:51,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31688580] [2024-12-02 08:30:51,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:51,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:52,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:52,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31688580] [2024-12-02 08:30:52,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31688580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:52,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:52,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:30:52,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88090906] [2024-12-02 08:30:52,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:52,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:30:52,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:52,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:30:52,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:30:52,129 INFO L87 Difference]: Start difference. First operand 771 states and 980 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:52,371 INFO L93 Difference]: Finished difference Result 1787 states and 2254 transitions. [2024-12-02 08:30:52,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:30:52,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:30:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:52,376 INFO L225 Difference]: With dead ends: 1787 [2024-12-02 08:30:52,376 INFO L226 Difference]: Without dead ends: 1040 [2024-12-02 08:30:52,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:30:52,378 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 218 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:52,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 815 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-12-02 08:30:52,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 940. [2024-12-02 08:30:52,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 773 states have (on average 1.1979301423027167) internal successors, (926), 785 states have internal predecessors, (926), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2024-12-02 08:30:52,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1182 transitions. [2024-12-02 08:30:52,459 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1182 transitions. Word has length 151 [2024-12-02 08:30:52,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:52,459 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1182 transitions. [2024-12-02 08:30:52,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:52,459 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1182 transitions. [2024-12-02 08:30:52,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:30:52,460 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:52,460 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:52,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 08:30:52,460 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:52,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1800500856, now seen corresponding path program 1 times [2024-12-02 08:30:52,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:52,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436189759] [2024-12-02 08:30:52,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:52,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:52,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:52,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436189759] [2024-12-02 08:30:52,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436189759] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:52,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:52,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:30:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932508374] [2024-12-02 08:30:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:52,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:30:52,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:52,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:30:52,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:52,641 INFO L87 Difference]: Start difference. First operand 940 states and 1182 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:52,804 INFO L93 Difference]: Finished difference Result 1851 states and 2329 transitions. [2024-12-02 08:30:52,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:30:52,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:30:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:52,807 INFO L225 Difference]: With dead ends: 1851 [2024-12-02 08:30:52,807 INFO L226 Difference]: Without dead ends: 935 [2024-12-02 08:30:52,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:30:52,809 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 163 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:52,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 670 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-12-02 08:30:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 908. [2024-12-02 08:30:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 741 states have (on average 1.194331983805668) internal successors, (885), 753 states have internal predecessors, (885), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2024-12-02 08:30:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1141 transitions. [2024-12-02 08:30:52,878 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1141 transitions. Word has length 151 [2024-12-02 08:30:52,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:52,878 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1141 transitions. [2024-12-02 08:30:52,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1141 transitions. [2024-12-02 08:30:52,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:30:52,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:52,879 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:52,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 08:30:52,879 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:52,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:52,880 INFO L85 PathProgramCache]: Analyzing trace with hash 486318856, now seen corresponding path program 1 times [2024-12-02 08:30:52,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:52,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783538575] [2024-12-02 08:30:52,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:52,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:53,091 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:53,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:53,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783538575] [2024-12-02 08:30:53,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783538575] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:53,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:53,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:30:53,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248731549] [2024-12-02 08:30:53,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:53,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:30:53,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:53,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:30:53,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:53,093 INFO L87 Difference]: Start difference. First operand 908 states and 1141 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:53,269 INFO L93 Difference]: Finished difference Result 1706 states and 2144 transitions. [2024-12-02 08:30:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:30:53,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:30:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:53,274 INFO L225 Difference]: With dead ends: 1706 [2024-12-02 08:30:53,274 INFO L226 Difference]: Without dead ends: 820 [2024-12-02 08:30:53,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:30:53,276 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 112 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:53,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 778 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-12-02 08:30:53,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 690. [2024-12-02 08:30:53,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 581 states have (on average 1.2099827882960412) internal successors, (703), 589 states have internal predecessors, (703), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 08:30:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 869 transitions. [2024-12-02 08:30:53,363 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 869 transitions. Word has length 151 [2024-12-02 08:30:53,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:53,363 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 869 transitions. [2024-12-02 08:30:53,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 869 transitions. [2024-12-02 08:30:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:30:53,364 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:53,364 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:53,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:30:53,364 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:53,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1202624886, now seen corresponding path program 1 times [2024-12-02 08:30:53,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:53,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621098567] [2024-12-02 08:30:53,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:53,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621098567] [2024-12-02 08:30:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621098567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:53,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:53,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:30:53,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812540213] [2024-12-02 08:30:53,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:53,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:30:53,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:53,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:30:53,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:53,605 INFO L87 Difference]: Start difference. First operand 690 states and 869 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:53,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:53,782 INFO L93 Difference]: Finished difference Result 1428 states and 1797 transitions. [2024-12-02 08:30:53,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:30:53,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:30:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:53,785 INFO L225 Difference]: With dead ends: 1428 [2024-12-02 08:30:53,785 INFO L226 Difference]: Without dead ends: 741 [2024-12-02 08:30:53,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:30:53,787 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 167 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:53,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 679 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:53,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-12-02 08:30:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 679. [2024-12-02 08:30:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 570 states have (on average 1.2052631578947368) internal successors, (687), 578 states have internal predecessors, (687), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 08:30:53,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 853 transitions. [2024-12-02 08:30:53,843 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 853 transitions. Word has length 151 [2024-12-02 08:30:53,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:53,843 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 853 transitions. [2024-12-02 08:30:53,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 853 transitions. [2024-12-02 08:30:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:30:53,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:53,844 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:53,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 08:30:53,844 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:53,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:53,845 INFO L85 PathProgramCache]: Analyzing trace with hash 962728194, now seen corresponding path program 1 times [2024-12-02 08:30:53,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388150188] [2024-12-02 08:30:53,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:53,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:54,416 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:54,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:54,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388150188] [2024-12-02 08:30:54,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388150188] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:54,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:54,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:30:54,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074541641] [2024-12-02 08:30:54,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:54,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:30:54,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:54,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:30:54,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:30:54,417 INFO L87 Difference]: Start difference. First operand 679 states and 853 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:54,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:54,794 INFO L93 Difference]: Finished difference Result 1479 states and 1857 transitions. [2024-12-02 08:30:54,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:30:54,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:30:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:54,797 INFO L225 Difference]: With dead ends: 1479 [2024-12-02 08:30:54,797 INFO L226 Difference]: Without dead ends: 803 [2024-12-02 08:30:54,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:30:54,799 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 68 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:54,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1376 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:30:54,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-12-02 08:30:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 714. [2024-12-02 08:30:54,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 605 states have (on average 1.2082644628099173) internal successors, (731), 613 states have internal predecessors, (731), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 08:30:54,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 897 transitions. [2024-12-02 08:30:54,847 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 897 transitions. Word has length 152 [2024-12-02 08:30:54,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:54,848 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 897 transitions. [2024-12-02 08:30:54,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:54,848 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 897 transitions. [2024-12-02 08:30:54,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:30:54,848 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:54,849 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:54,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 08:30:54,849 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:54,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:54,849 INFO L85 PathProgramCache]: Analyzing trace with hash -317135484, now seen corresponding path program 1 times [2024-12-02 08:30:54,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:54,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342883718] [2024-12-02 08:30:54,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:54,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:55,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:55,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342883718] [2024-12-02 08:30:55,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342883718] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:55,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:55,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:30:55,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140447552] [2024-12-02 08:30:55,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:55,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:55,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:55,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:55,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:55,039 INFO L87 Difference]: Start difference. First operand 714 states and 897 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:55,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:55,238 INFO L93 Difference]: Finished difference Result 1488 states and 1867 transitions. [2024-12-02 08:30:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:55,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:30:55,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:55,242 INFO L225 Difference]: With dead ends: 1488 [2024-12-02 08:30:55,242 INFO L226 Difference]: Without dead ends: 777 [2024-12-02 08:30:55,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:55,244 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 53 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:55,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 614 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-12-02 08:30:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 713. [2024-12-02 08:30:55,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 604 states have (on average 1.205298013245033) internal successors, (728), 612 states have internal predecessors, (728), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 08:30:55,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 894 transitions. [2024-12-02 08:30:55,303 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 894 transitions. Word has length 152 [2024-12-02 08:30:55,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:55,303 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 894 transitions. [2024-12-02 08:30:55,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:55,303 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 894 transitions. [2024-12-02 08:30:55,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:30:55,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:55,304 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:55,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 08:30:55,304 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:55,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:55,304 INFO L85 PathProgramCache]: Analyzing trace with hash -839289728, now seen corresponding path program 1 times [2024-12-02 08:30:55,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:55,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548626270] [2024-12-02 08:30:55,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:55,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:56,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:56,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548626270] [2024-12-02 08:30:56,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548626270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:56,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:56,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:30:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98658291] [2024-12-02 08:30:56,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:56,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:30:56,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:56,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:30:56,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:30:56,061 INFO L87 Difference]: Start difference. First operand 713 states and 894 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:57,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:57,033 INFO L93 Difference]: Finished difference Result 1529 states and 1915 transitions. [2024-12-02 08:30:57,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:30:57,034 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 152 [2024-12-02 08:30:57,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:57,037 INFO L225 Difference]: With dead ends: 1529 [2024-12-02 08:30:57,037 INFO L226 Difference]: Without dead ends: 819 [2024-12-02 08:30:57,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:30:57,039 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 288 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:57,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1114 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:30:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-12-02 08:30:57,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 683. [2024-12-02 08:30:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 574 states have (on average 1.1968641114982579) internal successors, (687), 582 states have internal predecessors, (687), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 08:30:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 853 transitions. [2024-12-02 08:30:57,105 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 853 transitions. Word has length 152 [2024-12-02 08:30:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:57,105 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 853 transitions. [2024-12-02 08:30:57,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 853 transitions. [2024-12-02 08:30:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:30:57,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:57,106 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:57,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 08:30:57,106 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:57,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:57,106 INFO L85 PathProgramCache]: Analyzing trace with hash -2119153406, now seen corresponding path program 1 times [2024-12-02 08:30:57,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:57,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120753741] [2024-12-02 08:30:57,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:57,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:57,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:57,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120753741] [2024-12-02 08:30:57,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120753741] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:57,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:57,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:30:57,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029833138] [2024-12-02 08:30:57,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:57,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:30:57,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:57,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:30:57,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:30:57,411 INFO L87 Difference]: Start difference. First operand 683 states and 853 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:57,631 INFO L93 Difference]: Finished difference Result 1549 states and 1939 transitions. [2024-12-02 08:30:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:30:57,631 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:30:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:57,634 INFO L225 Difference]: With dead ends: 1549 [2024-12-02 08:30:57,634 INFO L226 Difference]: Without dead ends: 869 [2024-12-02 08:30:57,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:30:57,635 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 120 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:57,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 2139 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:30:57,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-12-02 08:30:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 715. [2024-12-02 08:30:57,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 606 states have (on average 1.198019801980198) internal successors, (726), 614 states have internal predecessors, (726), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 08:30:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 892 transitions. [2024-12-02 08:30:57,687 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 892 transitions. Word has length 152 [2024-12-02 08:30:57,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:57,687 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 892 transitions. [2024-12-02 08:30:57,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:30:57,687 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 892 transitions. [2024-12-02 08:30:57,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:30:57,688 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:57,688 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:57,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 08:30:57,688 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:57,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1609680316, now seen corresponding path program 1 times [2024-12-02 08:30:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:57,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115261408] [2024-12-02 08:30:57,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:57,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:58,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:58,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115261408] [2024-12-02 08:30:58,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115261408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:58,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:58,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:30:58,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525417914] [2024-12-02 08:30:58,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:58,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:30:58,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:58,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:30:58,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:30:58,039 INFO L87 Difference]: Start difference. First operand 715 states and 892 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:58,379 INFO L93 Difference]: Finished difference Result 1436 states and 1787 transitions. [2024-12-02 08:30:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:30:58,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 152 [2024-12-02 08:30:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:58,383 INFO L225 Difference]: With dead ends: 1436 [2024-12-02 08:30:58,383 INFO L226 Difference]: Without dead ends: 724 [2024-12-02 08:30:58,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:30:58,385 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 202 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:58,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 608 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:30:58,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-12-02 08:30:58,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 675. [2024-12-02 08:30:58,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 566 states have (on average 1.1925795053003534) internal successors, (675), 574 states have internal predecessors, (675), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 08:30:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 841 transitions. [2024-12-02 08:30:58,451 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 841 transitions. Word has length 152 [2024-12-02 08:30:58,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:58,451 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 841 transitions. [2024-12-02 08:30:58,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:58,451 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 841 transitions. [2024-12-02 08:30:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:30:58,452 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:58,452 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:58,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 08:30:58,452 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:58,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:58,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2028771022, now seen corresponding path program 1 times [2024-12-02 08:30:58,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:58,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648226546] [2024-12-02 08:30:58,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:58,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:30:59,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:59,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648226546] [2024-12-02 08:30:59,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648226546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:59,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:59,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:30:59,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938798934] [2024-12-02 08:30:59,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:59,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:30:59,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:59,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:30:59,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:30:59,430 INFO L87 Difference]: Start difference. First operand 675 states and 841 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:59,877 INFO L93 Difference]: Finished difference Result 945 states and 1172 transitions. [2024-12-02 08:30:59,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:30:59,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 152 [2024-12-02 08:30:59,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:59,880 INFO L225 Difference]: With dead ends: 945 [2024-12-02 08:30:59,880 INFO L226 Difference]: Without dead ends: 943 [2024-12-02 08:30:59,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:30:59,881 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 241 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:59,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 750 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:30:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-12-02 08:30:59,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 658. [2024-12-02 08:30:59,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 556 states have (on average 1.185251798561151) internal successors, (659), 563 states have internal predecessors, (659), 77 states have call successors, (77), 24 states have call predecessors, (77), 24 states have return successors, (77), 70 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 08:30:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 813 transitions. [2024-12-02 08:30:59,932 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 813 transitions. Word has length 152 [2024-12-02 08:30:59,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:59,932 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 813 transitions. [2024-12-02 08:30:59,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:30:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 813 transitions. [2024-12-02 08:30:59,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:30:59,933 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:59,933 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:59,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 08:30:59,933 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:59,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:59,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2026923980, now seen corresponding path program 1 times [2024-12-02 08:30:59,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:59,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047179111] [2024-12-02 08:30:59,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:59,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:00,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:00,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047179111] [2024-12-02 08:31:00,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047179111] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:00,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:00,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:31:00,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862343571] [2024-12-02 08:31:00,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:00,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:31:00,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:00,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:31:00,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:31:00,069 INFO L87 Difference]: Start difference. First operand 658 states and 813 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:00,160 INFO L93 Difference]: Finished difference Result 1369 states and 1691 transitions. [2024-12-02 08:31:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:31:00,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:31:00,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:00,164 INFO L225 Difference]: With dead ends: 1369 [2024-12-02 08:31:00,164 INFO L226 Difference]: Without dead ends: 714 [2024-12-02 08:31:00,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:31:00,165 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 93 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:00,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 659 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:31:00,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-12-02 08:31:00,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2024-12-02 08:31:00,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 589 states have (on average 1.1612903225806452) internal successors, (684), 597 states have internal predecessors, (684), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 08:31:00,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 872 transitions. [2024-12-02 08:31:00,227 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 872 transitions. Word has length 152 [2024-12-02 08:31:00,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:00,228 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 872 transitions. [2024-12-02 08:31:00,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 872 transitions. [2024-12-02 08:31:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:31:00,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:00,229 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:00,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 08:31:00,229 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:00,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:00,229 INFO L85 PathProgramCache]: Analyzing trace with hash -251916618, now seen corresponding path program 1 times [2024-12-02 08:31:00,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:00,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600220560] [2024-12-02 08:31:00,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:00,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:31:00,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:00,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600220560] [2024-12-02 08:31:00,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600220560] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:31:00,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434599500] [2024-12-02 08:31:00,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:00,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:31:00,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:31:00,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:31:00,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:31:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:00,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:31:00,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:31:00,623 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:00,623 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:31:00,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434599500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:00,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:31:00,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 08:31:00,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308775396] [2024-12-02 08:31:00,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:00,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:31:00,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:00,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:31:00,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:31:00,624 INFO L87 Difference]: Start difference. First operand 713 states and 872 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:00,710 INFO L93 Difference]: Finished difference Result 1396 states and 1709 transitions. [2024-12-02 08:31:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:31:00,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:31:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:00,714 INFO L225 Difference]: With dead ends: 1396 [2024-12-02 08:31:00,714 INFO L226 Difference]: Without dead ends: 737 [2024-12-02 08:31:00,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:31:00,715 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:00,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 544 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:31:00,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-12-02 08:31:00,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2024-12-02 08:31:00,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 613 states have (on average 1.1549755301794453) internal successors, (708), 621 states have internal predecessors, (708), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 08:31:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 896 transitions. [2024-12-02 08:31:00,793 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 896 transitions. Word has length 152 [2024-12-02 08:31:00,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:00,794 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 896 transitions. [2024-12-02 08:31:00,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:00,794 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 896 transitions. [2024-12-02 08:31:00,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:31:00,795 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:00,795 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:00,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:31:00,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:31:00,995 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:00,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:00,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1302395988, now seen corresponding path program 1 times [2024-12-02 08:31:00,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:00,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333377425] [2024-12-02 08:31:00,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:00,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:01,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:01,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333377425] [2024-12-02 08:31:01,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333377425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:01,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:01,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:31:01,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355892062] [2024-12-02 08:31:01,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:01,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:31:01,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:01,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:31:01,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:31:01,962 INFO L87 Difference]: Start difference. First operand 737 states and 896 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:31:02,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:02,419 INFO L93 Difference]: Finished difference Result 1452 states and 1762 transitions. [2024-12-02 08:31:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:31:02,419 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 154 [2024-12-02 08:31:02,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:02,422 INFO L225 Difference]: With dead ends: 1452 [2024-12-02 08:31:02,422 INFO L226 Difference]: Without dead ends: 769 [2024-12-02 08:31:02,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:31:02,423 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 229 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:02,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 777 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:31:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-12-02 08:31:02,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 726. [2024-12-02 08:31:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 602 states have (on average 1.154485049833887) internal successors, (695), 610 states have internal predecessors, (695), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 08:31:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 883 transitions. [2024-12-02 08:31:02,505 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 883 transitions. Word has length 154 [2024-12-02 08:31:02,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:02,505 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 883 transitions. [2024-12-02 08:31:02,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:31:02,506 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 883 transitions. [2024-12-02 08:31:02,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:31:02,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:02,506 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:02,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 08:31:02,506 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:02,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:02,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2021980645, now seen corresponding path program 1 times [2024-12-02 08:31:02,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:02,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941247562] [2024-12-02 08:31:02,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:02,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:02,921 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:02,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:02,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941247562] [2024-12-02 08:31:02,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941247562] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:02,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:02,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:31:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755121026] [2024-12-02 08:31:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:02,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:31:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:02,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:31:02,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:31:02,923 INFO L87 Difference]: Start difference. First operand 726 states and 883 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:03,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:03,262 INFO L93 Difference]: Finished difference Result 1811 states and 2182 transitions. [2024-12-02 08:31:03,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:31:03,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-12-02 08:31:03,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:03,266 INFO L225 Difference]: With dead ends: 1811 [2024-12-02 08:31:03,266 INFO L226 Difference]: Without dead ends: 1139 [2024-12-02 08:31:03,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:31:03,267 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 52 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:03,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 736 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:31:03,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-12-02 08:31:03,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 897. [2024-12-02 08:31:03,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 773 states have (on average 1.15006468305304) internal successors, (889), 781 states have internal predecessors, (889), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 08:31:03,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1077 transitions. [2024-12-02 08:31:03,341 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1077 transitions. Word has length 154 [2024-12-02 08:31:03,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:03,342 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1077 transitions. [2024-12-02 08:31:03,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1077 transitions. [2024-12-02 08:31:03,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:31:03,343 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:03,343 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:03,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 08:31:03,343 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:03,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1686180637, now seen corresponding path program 1 times [2024-12-02 08:31:03,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:03,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910121644] [2024-12-02 08:31:03,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:03,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:03,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910121644] [2024-12-02 08:31:03,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910121644] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:03,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:03,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:31:03,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832527932] [2024-12-02 08:31:03,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:03,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:31:03,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:03,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:31:03,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:31:03,747 INFO L87 Difference]: Start difference. First operand 897 states and 1077 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:04,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:04,069 INFO L93 Difference]: Finished difference Result 1892 states and 2247 transitions. [2024-12-02 08:31:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:31:04,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-12-02 08:31:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:04,074 INFO L225 Difference]: With dead ends: 1892 [2024-12-02 08:31:04,074 INFO L226 Difference]: Without dead ends: 1049 [2024-12-02 08:31:04,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:31:04,076 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 38 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:04,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 601 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:31:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-12-02 08:31:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 897. [2024-12-02 08:31:04,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 773 states have (on average 1.1397153945666236) internal successors, (881), 781 states have internal predecessors, (881), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 08:31:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1069 transitions. [2024-12-02 08:31:04,179 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1069 transitions. Word has length 154 [2024-12-02 08:31:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:04,180 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1069 transitions. [2024-12-02 08:31:04,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:04,180 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1069 transitions. [2024-12-02 08:31:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:31:04,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:04,181 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:04,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 08:31:04,181 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:04,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1763513561, now seen corresponding path program 1 times [2024-12-02 08:31:04,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:04,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862355289] [2024-12-02 08:31:04,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:05,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:05,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862355289] [2024-12-02 08:31:05,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862355289] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:05,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:05,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:31:05,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092173121] [2024-12-02 08:31:05,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:05,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:31:05,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:05,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:31:05,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:31:05,012 INFO L87 Difference]: Start difference. First operand 897 states and 1069 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:31:05,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:05,584 INFO L93 Difference]: Finished difference Result 2140 states and 2528 transitions. [2024-12-02 08:31:05,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:31:05,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 154 [2024-12-02 08:31:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:05,588 INFO L225 Difference]: With dead ends: 2140 [2024-12-02 08:31:05,588 INFO L226 Difference]: Without dead ends: 1297 [2024-12-02 08:31:05,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:31:05,589 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 235 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:05,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 634 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:31:05,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2024-12-02 08:31:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1047. [2024-12-02 08:31:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 923 states have (on average 1.1278439869989165) internal successors, (1041), 931 states have internal predecessors, (1041), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 08:31:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1229 transitions. [2024-12-02 08:31:05,677 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1229 transitions. Word has length 154 [2024-12-02 08:31:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:05,677 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1229 transitions. [2024-12-02 08:31:05,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:31:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1229 transitions. [2024-12-02 08:31:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:31:05,678 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:05,678 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:05,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 08:31:05,679 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:05,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:05,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1176707547, now seen corresponding path program 1 times [2024-12-02 08:31:05,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:05,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767390521] [2024-12-02 08:31:05,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:05,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:06,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:06,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767390521] [2024-12-02 08:31:06,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767390521] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:06,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:06,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:31:06,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583256613] [2024-12-02 08:31:06,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:06,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:31:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:06,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:31:06,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:31:06,324 INFO L87 Difference]: Start difference. First operand 1047 states and 1229 transitions. Second operand has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:31:07,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:07,185 INFO L93 Difference]: Finished difference Result 2272 states and 2647 transitions. [2024-12-02 08:31:07,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:31:07,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 154 [2024-12-02 08:31:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:07,189 INFO L225 Difference]: With dead ends: 2272 [2024-12-02 08:31:07,189 INFO L226 Difference]: Without dead ends: 1279 [2024-12-02 08:31:07,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:31:07,190 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 366 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:07,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 952 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:31:07,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-12-02 08:31:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1182. [2024-12-02 08:31:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1028 states have (on average 1.1147859922178989) internal successors, (1146), 1041 states have internal predecessors, (1146), 114 states have call successors, (114), 39 states have call predecessors, (114), 39 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2024-12-02 08:31:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1374 transitions. [2024-12-02 08:31:07,307 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1374 transitions. Word has length 154 [2024-12-02 08:31:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:07,307 INFO L471 AbstractCegarLoop]: Abstraction has 1182 states and 1374 transitions. [2024-12-02 08:31:07,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:31:07,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1374 transitions. [2024-12-02 08:31:07,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:31:07,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:07,308 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:07,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 08:31:07,308 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:07,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash 747728046, now seen corresponding path program 1 times [2024-12-02 08:31:07,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:07,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309569972] [2024-12-02 08:31:07,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:07,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:31:07,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967996453] [2024-12-02 08:31:07,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:07,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:31:07,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:31:07,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:31:07,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:31:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:08,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-12-02 08:31:08,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:31:08,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 08:31:08,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 08:31:08,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 08:31:08,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-12-02 08:31:08,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 08:31:09,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2024-12-02 08:31:09,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 38 [2024-12-02 08:31:09,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2024-12-02 08:31:09,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2024-12-02 08:31:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 08:31:09,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:31:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:09,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:09,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309569972] [2024-12-02 08:31:09,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:31:09,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967996453] [2024-12-02 08:31:09,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967996453] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:31:09,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:31:09,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 08:31:09,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840620115] [2024-12-02 08:31:09,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:09,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:31:09,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:09,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:31:09,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:31:09,895 INFO L87 Difference]: Start difference. First operand 1182 states and 1374 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:11,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:11,525 INFO L93 Difference]: Finished difference Result 2770 states and 3197 transitions. [2024-12-02 08:31:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:31:11,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 08:31:11,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:11,530 INFO L225 Difference]: With dead ends: 2770 [2024-12-02 08:31:11,530 INFO L226 Difference]: Without dead ends: 1642 [2024-12-02 08:31:11,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:31:11,532 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 52 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:11,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 520 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:31:11,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-12-02 08:31:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1397. [2024-12-02 08:31:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1242 states have (on average 1.1175523349436394) internal successors, (1388), 1255 states have internal predecessors, (1388), 114 states have call successors, (114), 40 states have call predecessors, (114), 40 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2024-12-02 08:31:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1616 transitions. [2024-12-02 08:31:11,668 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1616 transitions. Word has length 155 [2024-12-02 08:31:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:11,669 INFO L471 AbstractCegarLoop]: Abstraction has 1397 states and 1616 transitions. [2024-12-02 08:31:11,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1616 transitions. [2024-12-02 08:31:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:31:11,670 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:11,670 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:11,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:31:11,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-12-02 08:31:11,870 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:11,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:11,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1448792624, now seen corresponding path program 1 times [2024-12-02 08:31:11,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090143569] [2024-12-02 08:31:11,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:31:12,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:12,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090143569] [2024-12-02 08:31:12,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090143569] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:31:12,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023630482] [2024-12-02 08:31:12,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:12,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:31:12,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:31:12,030 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:31:12,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:31:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:12,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:31:12,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:31:12,283 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:12,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:31:12,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023630482] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:12,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:31:12,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 08:31:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332864639] [2024-12-02 08:31:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:12,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:31:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:12,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:31:12,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:31:12,285 INFO L87 Difference]: Start difference. First operand 1397 states and 1616 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:12,459 INFO L93 Difference]: Finished difference Result 2743 states and 3172 transitions. [2024-12-02 08:31:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:31:12,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 08:31:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:12,465 INFO L225 Difference]: With dead ends: 2743 [2024-12-02 08:31:12,465 INFO L226 Difference]: Without dead ends: 1404 [2024-12-02 08:31:12,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:31:12,467 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:12,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:31:12,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-12-02 08:31:12,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1365. [2024-12-02 08:31:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1210 states have (on average 1.112396694214876) internal successors, (1346), 1223 states have internal predecessors, (1346), 114 states have call successors, (114), 40 states have call predecessors, (114), 40 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2024-12-02 08:31:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1574 transitions. [2024-12-02 08:31:12,656 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1574 transitions. Word has length 155 [2024-12-02 08:31:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:12,657 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1574 transitions. [2024-12-02 08:31:12,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1574 transitions. [2024-12-02 08:31:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:31:12,658 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:12,658 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:12,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:31:12,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b01f80-9dff-4450-8ddc-cace494627b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:31:12,859 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:12,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:12,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1175499988, now seen corresponding path program 1 times [2024-12-02 08:31:12,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:12,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292897499] [2024-12-02 08:31:12,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:12,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:31:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292897499] [2024-12-02 08:31:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292897499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:13,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:13,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:31:13,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777730112] [2024-12-02 08:31:13,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:13,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:31:13,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:13,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:31:13,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:31:13,148 INFO L87 Difference]: Start difference. First operand 1365 states and 1574 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:13,480 INFO L93 Difference]: Finished difference Result 3692 states and 4247 transitions. [2024-12-02 08:31:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:31:13,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 08:31:13,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:13,483 INFO L225 Difference]: With dead ends: 3692 [2024-12-02 08:31:13,483 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:31:13,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:31:13,485 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 119 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:13,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1407 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:31:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:31:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:31:13,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:31:13,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2024-12-02 08:31:13,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:13,488 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:31:13,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:31:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:31:13,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:31:13,490 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:31:13,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 08:31:13,494 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:31:13,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.