./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.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_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/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_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/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_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/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 ecf82f73685a389a6d8ab3479ee5cabf8a5c47771e1a4d141e5607a0c68dd324 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:56:03,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:56:03,420 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:56:03,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:56:03,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:56:03,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:56:03,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:56:03,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:56:03,445 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:56:03,445 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:56:03,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:56:03,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:56:03,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:56:03,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:56:03,446 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:56:03,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:56:03,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:56:03,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:56:03,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:56:03,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:56:03,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:56:03,447 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:56:03,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:56:03,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:56:03,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:56:03,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:56:03,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:56:03,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:56:03,449 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:56:03,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:56:03,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:56:03,450 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:56:03,450 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:56:03,450 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_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/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 -> ecf82f73685a389a6d8ab3479ee5cabf8a5c47771e1a4d141e5607a0c68dd324 [2024-12-02 05:56:03,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:56:03,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:56:03,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:56:03,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:56:03,665 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:56:03,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i [2024-12-02 05:56:06,273 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/data/de351c016/daef50134151436092891ec100d8f978/FLAG34f9649be [2024-12-02 05:56:06,476 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:56:06,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i [2024-12-02 05:56:06,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/data/de351c016/daef50134151436092891ec100d8f978/FLAG34f9649be [2024-12-02 05:56:06,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/data/de351c016/daef50134151436092891ec100d8f978 [2024-12-02 05:56:06,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:56:06,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:56:06,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:56:06,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:56:06,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:56:06,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:56:06" (1/1) ... [2024-12-02 05:56:06,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ef55ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:06, skipping insertion in model container [2024-12-02 05:56:06,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:56:06" (1/1) ... [2024-12-02 05:56:06,846 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:56:06,967 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_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i[916,929] [2024-12-02 05:56:07,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:56:07,024 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:56:07,034 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_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i[916,929] [2024-12-02 05:56:07,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:56:07,077 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:56:07,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07 WrapperNode [2024-12-02 05:56:07,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:56:07,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:56:07,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:56:07,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:56:07,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,123 INFO L138 Inliner]: procedures = 26, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 466 [2024-12-02 05:56:07,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:56:07,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:56:07,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:56:07,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:56:07,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,137 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,155 INFO L175 MemorySlicer]: Split 125 memory accesses to 12 slices as follows [2, 7, 28, 16, 8, 12, 7, 11, 6, 19, 6, 3]. 22 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 3, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1]. [2024-12-02 05:56:07,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,167 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:56:07,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:56:07,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:56:07,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:56:07,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (1/1) ... [2024-12-02 05:56:07,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:56:07,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:07,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:56:07,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 05:56:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 05:56:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 05:56:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 05:56:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 05:56:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 05:56:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 05:56:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 05:56:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:56:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:56:07,365 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:56:07,367 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:56:07,762 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-12-02 05:56:07,762 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:56:07,772 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:56:07,773 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:56:07,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:56:07 BoogieIcfgContainer [2024-12-02 05:56:07,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:56:07,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:56:07,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:56:07,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:56:07,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:56:06" (1/3) ... [2024-12-02 05:56:07,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6c3b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:56:07, skipping insertion in model container [2024-12-02 05:56:07,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:07" (2/3) ... [2024-12-02 05:56:07,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6c3b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:56:07, skipping insertion in model container [2024-12-02 05:56:07,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:56:07" (3/3) ... [2024-12-02 05:56:07,781 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-58.i [2024-12-02 05:56:07,795 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:56:07,796 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-58.i that has 2 procedures, 92 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:56:07,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:56:07,857 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;@44915864, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:56:07,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:56:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 75 states have internal predecessors, (103), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 05:56:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:56:07,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:07,872 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:07,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:07,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:07,878 INFO L85 PathProgramCache]: Analyzing trace with hash 355485762, now seen corresponding path program 1 times [2024-12-02 05:56:07,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:07,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760598825] [2024-12-02 05:56:07,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:07,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 05:56:08,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:08,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760598825] [2024-12-02 05:56:08,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760598825] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:08,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495025795] [2024-12-02 05:56:08,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:08,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:08,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:08,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:08,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:56:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:08,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:56:08,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:08,383 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 05:56:08,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:08,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495025795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:08,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:08,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 05:56:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289724607] [2024-12-02 05:56:08,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:08,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:56:08,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:08,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:56:08,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:56:08,411 INFO L87 Difference]: Start difference. First operand has 92 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 75 states have internal predecessors, (103), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 05:56:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:08,435 INFO L93 Difference]: Finished difference Result 173 states and 269 transitions. [2024-12-02 05:56:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:56:08,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2024-12-02 05:56:08,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:08,443 INFO L225 Difference]: With dead ends: 173 [2024-12-02 05:56:08,443 INFO L226 Difference]: Without dead ends: 84 [2024-12-02 05:56:08,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 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 05:56:08,448 INFO L435 NwaCegarLoop]: 118 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, 118 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 05:56:08,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-12-02 05:56:08,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-12-02 05:56:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 67 states have internal predecessors, (88), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 05:56:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2024-12-02 05:56:08,486 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 116 [2024-12-02 05:56:08,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:08,486 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2024-12-02 05:56:08,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 05:56:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2024-12-02 05:56:08,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:56:08,489 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:08,490 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:08,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:56:08,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:08,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:08,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:08,691 INFO L85 PathProgramCache]: Analyzing trace with hash -129349408, now seen corresponding path program 1 times [2024-12-02 05:56:08,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:08,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971868779] [2024-12-02 05:56:08,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:08,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:08,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971868779] [2024-12-02 05:56:08,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971868779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:08,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:08,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:56:08,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874102933] [2024-12-02 05:56:08,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:08,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:56:08,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:08,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:56:08,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:56:08,975 INFO L87 Difference]: Start difference. First operand 84 states and 118 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:09,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:09,012 INFO L93 Difference]: Finished difference Result 168 states and 237 transitions. [2024-12-02 05:56:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:56:09,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2024-12-02 05:56:09,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:09,014 INFO L225 Difference]: With dead ends: 168 [2024-12-02 05:56:09,015 INFO L226 Difference]: Without dead ends: 87 [2024-12-02 05:56:09,015 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 05:56:09,016 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:09,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 336 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-12-02 05:56:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-12-02 05:56:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 69 states have internal predecessors, (90), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 05:56:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2024-12-02 05:56:09,025 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 116 [2024-12-02 05:56:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:09,027 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-12-02 05:56:09,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2024-12-02 05:56:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:56:09,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:09,029 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:09,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:56:09,029 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:09,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:09,029 INFO L85 PathProgramCache]: Analyzing trace with hash -127502366, now seen corresponding path program 1 times [2024-12-02 05:56:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:09,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430658140] [2024-12-02 05:56:09,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:09,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:10,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:10,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430658140] [2024-12-02 05:56:10,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430658140] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:10,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:10,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:56:10,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458227761] [2024-12-02 05:56:10,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:10,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:56:10,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:10,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:56:10,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:56:10,525 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:10,985 INFO L93 Difference]: Finished difference Result 214 states and 299 transitions. [2024-12-02 05:56:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:56:10,986 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 116 [2024-12-02 05:56:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:10,987 INFO L225 Difference]: With dead ends: 214 [2024-12-02 05:56:10,988 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 05:56:10,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:56:10,989 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 364 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:10,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 532 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:56:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 05:56:11,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2024-12-02 05:56:11,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 05:56:11,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2024-12-02 05:56:11,005 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 140 transitions. Word has length 116 [2024-12-02 05:56:11,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:11,005 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 140 transitions. [2024-12-02 05:56:11,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2024-12-02 05:56:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:56:11,008 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:11,008 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:11,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:56:11,008 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:11,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:11,009 INFO L85 PathProgramCache]: Analyzing trace with hash 130663072, now seen corresponding path program 1 times [2024-12-02 05:56:11,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:11,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617330292] [2024-12-02 05:56:11,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:11,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:12,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:12,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617330292] [2024-12-02 05:56:12,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617330292] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:12,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:12,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:56:12,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118999134] [2024-12-02 05:56:12,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:12,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:56:12,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:12,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:56:12,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:56:12,019 INFO L87 Difference]: Start difference. First operand 100 states and 140 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 10 states have internal predecessors, (44), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-12-02 05:56:12,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:12,626 INFO L93 Difference]: Finished difference Result 244 states and 339 transitions. [2024-12-02 05:56:12,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:56:12,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 10 states have internal predecessors, (44), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) Word has length 116 [2024-12-02 05:56:12,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:12,629 INFO L225 Difference]: With dead ends: 244 [2024-12-02 05:56:12,629 INFO L226 Difference]: Without dead ends: 147 [2024-12-02 05:56:12,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:56:12,630 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 239 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:12,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 470 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:56:12,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-12-02 05:56:12,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 135. [2024-12-02 05:56:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 115 states have (on average 1.3217391304347825) internal successors, (152), 116 states have internal predecessors, (152), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 05:56:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 186 transitions. [2024-12-02 05:56:12,650 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 186 transitions. Word has length 116 [2024-12-02 05:56:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:12,650 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 186 transitions. [2024-12-02 05:56:12,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 10 states have internal predecessors, (44), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-12-02 05:56:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2024-12-02 05:56:12,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:56:12,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:12,652 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:12,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 05:56:12,652 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:12,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:12,653 INFO L85 PathProgramCache]: Analyzing trace with hash 602238711, now seen corresponding path program 1 times [2024-12-02 05:56:12,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:12,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572277442] [2024-12-02 05:56:12,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:12,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:12,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:12,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572277442] [2024-12-02 05:56:12,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572277442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:12,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:12,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:56:12,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775053382] [2024-12-02 05:56:12,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:12,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:56:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:12,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:56:12,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:56:12,925 INFO L87 Difference]: Start difference. First operand 135 states and 186 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:13,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:13,137 INFO L93 Difference]: Finished difference Result 352 states and 485 transitions. [2024-12-02 05:56:13,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:56:13,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2024-12-02 05:56:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:13,144 INFO L225 Difference]: With dead ends: 352 [2024-12-02 05:56:13,144 INFO L226 Difference]: Without dead ends: 220 [2024-12-02 05:56:13,145 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 05:56:13,146 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 106 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:13,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 535 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:56:13,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-12-02 05:56:13,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2024-12-02 05:56:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 179 states have (on average 1.2905027932960893) internal successors, (231), 181 states have internal predecessors, (231), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 05:56:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 299 transitions. [2024-12-02 05:56:13,178 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 299 transitions. Word has length 116 [2024-12-02 05:56:13,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:13,178 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 299 transitions. [2024-12-02 05:56:13,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 299 transitions. [2024-12-02 05:56:13,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:56:13,180 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:13,180 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:13,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:56:13,180 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:13,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:13,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1715850268, now seen corresponding path program 1 times [2024-12-02 05:56:13,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:13,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128075752] [2024-12-02 05:56:13,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:13,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:13,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:13,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128075752] [2024-12-02 05:56:13,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128075752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:13,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:13,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:56:13,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669552401] [2024-12-02 05:56:13,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:13,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:56:13,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:13,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:56:13,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:56:13,558 INFO L87 Difference]: Start difference. First operand 218 states and 299 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:13,784 INFO L93 Difference]: Finished difference Result 472 states and 648 transitions. [2024-12-02 05:56:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:56:13,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2024-12-02 05:56:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:13,788 INFO L225 Difference]: With dead ends: 472 [2024-12-02 05:56:13,788 INFO L226 Difference]: Without dead ends: 266 [2024-12-02 05:56:13,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:56:13,789 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 72 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:13,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 660 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:56:13,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-12-02 05:56:13,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 232. [2024-12-02 05:56:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 193 states have (on average 1.2953367875647668) internal successors, (250), 195 states have internal predecessors, (250), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 05:56:13,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 318 transitions. [2024-12-02 05:56:13,822 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 318 transitions. Word has length 116 [2024-12-02 05:56:13,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:13,823 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 318 transitions. [2024-12-02 05:56:13,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:13,823 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 318 transitions. [2024-12-02 05:56:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:56:13,824 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:13,824 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:13,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:56:13,825 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:13,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:13,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1457684830, now seen corresponding path program 1 times [2024-12-02 05:56:13,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:13,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148753913] [2024-12-02 05:56:13,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:13,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:14,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:14,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148753913] [2024-12-02 05:56:14,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148753913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:14,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:14,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:56:14,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880330694] [2024-12-02 05:56:14,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:14,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:56:14,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:14,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:56:14,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:56:14,298 INFO L87 Difference]: Start difference. First operand 232 states and 318 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:14,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:14,470 INFO L93 Difference]: Finished difference Result 498 states and 681 transitions. [2024-12-02 05:56:14,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:56:14,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2024-12-02 05:56:14,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:14,473 INFO L225 Difference]: With dead ends: 498 [2024-12-02 05:56:14,473 INFO L226 Difference]: Without dead ends: 278 [2024-12-02 05:56:14,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:56:14,474 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 66 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:14,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 938 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:56:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-12-02 05:56:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 275. [2024-12-02 05:56:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 228 states have (on average 1.2850877192982457) internal successors, (293), 231 states have internal predecessors, (293), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 05:56:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 373 transitions. [2024-12-02 05:56:14,522 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 373 transitions. Word has length 116 [2024-12-02 05:56:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:14,522 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 373 transitions. [2024-12-02 05:56:14,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:14,522 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 373 transitions. [2024-12-02 05:56:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 05:56:14,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:14,523 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:14,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:56:14,524 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:14,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:14,524 INFO L85 PathProgramCache]: Analyzing trace with hash 671172388, now seen corresponding path program 1 times [2024-12-02 05:56:14,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:14,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937050568] [2024-12-02 05:56:14,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:14,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:14,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:14,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937050568] [2024-12-02 05:56:14,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937050568] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:14,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:14,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:56:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342855318] [2024-12-02 05:56:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:14,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:56:14,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:14,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:56:14,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:56:14,748 INFO L87 Difference]: Start difference. First operand 275 states and 373 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:14,945 INFO L93 Difference]: Finished difference Result 530 states and 720 transitions. [2024-12-02 05:56:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:56:14,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2024-12-02 05:56:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:14,948 INFO L225 Difference]: With dead ends: 530 [2024-12-02 05:56:14,948 INFO L226 Difference]: Without dead ends: 234 [2024-12-02 05:56:14,949 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 05:56:14,949 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 107 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:14,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 445 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:56:14,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-12-02 05:56:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 232. [2024-12-02 05:56:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 187 states have (on average 1.2459893048128343) internal successors, (233), 189 states have internal predecessors, (233), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 05:56:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 309 transitions. [2024-12-02 05:56:14,974 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 309 transitions. Word has length 117 [2024-12-02 05:56:14,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:14,975 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 309 transitions. [2024-12-02 05:56:14,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:14,975 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2024-12-02 05:56:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 05:56:14,976 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:14,976 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:14,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:56:14,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:14,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1400913465, now seen corresponding path program 1 times [2024-12-02 05:56:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:14,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704452165] [2024-12-02 05:56:14,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:15,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:15,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704452165] [2024-12-02 05:56:15,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704452165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:15,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:15,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 05:56:15,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360063081] [2024-12-02 05:56:15,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:15,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 05:56:15,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:15,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 05:56:15,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:56:15,704 INFO L87 Difference]: Start difference. First operand 232 states and 309 transitions. Second operand has 12 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2024-12-02 05:56:16,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:16,365 INFO L93 Difference]: Finished difference Result 493 states and 660 transitions. [2024-12-02 05:56:16,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:56:16,365 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) Word has length 117 [2024-12-02 05:56:16,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:16,367 INFO L225 Difference]: With dead ends: 493 [2024-12-02 05:56:16,367 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 05:56:16,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:56:16,369 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 385 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:16,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 512 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 05:56:16,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 05:56:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 244. [2024-12-02 05:56:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 199 states have (on average 1.2512562814070352) internal successors, (249), 201 states have internal predecessors, (249), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 05:56:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 325 transitions. [2024-12-02 05:56:16,403 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 325 transitions. Word has length 117 [2024-12-02 05:56:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:16,404 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 325 transitions. [2024-12-02 05:56:16,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2024-12-02 05:56:16,404 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 325 transitions. [2024-12-02 05:56:16,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 05:56:16,405 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:16,406 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:16,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 05:56:16,406 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:16,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1142748027, now seen corresponding path program 1 times [2024-12-02 05:56:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:16,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514475775] [2024-12-02 05:56:16,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:16,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:16,993 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:16,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:16,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514475775] [2024-12-02 05:56:16,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514475775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:16,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:16,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 05:56:16,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392464262] [2024-12-02 05:56:16,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:16,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:56:16,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:16,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:56:16,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:56:16,995 INFO L87 Difference]: Start difference. First operand 244 states and 325 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:17,438 INFO L93 Difference]: Finished difference Result 505 states and 675 transitions. [2024-12-02 05:56:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:56:17,438 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 117 [2024-12-02 05:56:17,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:17,440 INFO L225 Difference]: With dead ends: 505 [2024-12-02 05:56:17,440 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 05:56:17,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:56:17,442 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 199 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:17,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 689 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:56:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 05:56:17,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 247. [2024-12-02 05:56:17,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 202 states have (on average 1.2475247524752475) internal successors, (252), 204 states have internal predecessors, (252), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 05:56:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 328 transitions. [2024-12-02 05:56:17,476 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 328 transitions. Word has length 117 [2024-12-02 05:56:17,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:17,476 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 328 transitions. [2024-12-02 05:56:17,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:17,476 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 328 transitions. [2024-12-02 05:56:17,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 05:56:17,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:17,478 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:17,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 05:56:17,478 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:17,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:17,479 INFO L85 PathProgramCache]: Analyzing trace with hash -593231241, now seen corresponding path program 1 times [2024-12-02 05:56:17,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:17,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9979484] [2024-12-02 05:56:17,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:17,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:17,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:17,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9979484] [2024-12-02 05:56:17,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9979484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:17,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:17,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:56:17,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082540588] [2024-12-02 05:56:17,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:17,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:56:17,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:17,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:56:17,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:56:17,753 INFO L87 Difference]: Start difference. First operand 247 states and 328 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:17,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:17,957 INFO L93 Difference]: Finished difference Result 519 states and 690 transitions. [2024-12-02 05:56:17,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:56:17,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2024-12-02 05:56:17,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:17,960 INFO L225 Difference]: With dead ends: 519 [2024-12-02 05:56:17,960 INFO L226 Difference]: Without dead ends: 284 [2024-12-02 05:56:17,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:56:17,961 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 62 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:17,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 931 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:56:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-12-02 05:56:17,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 272. [2024-12-02 05:56:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 227 states have (on average 1.2599118942731278) internal successors, (286), 229 states have internal predecessors, (286), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 05:56:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 362 transitions. [2024-12-02 05:56:17,988 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 362 transitions. Word has length 117 [2024-12-02 05:56:17,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:17,988 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 362 transitions. [2024-12-02 05:56:17,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:17,988 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 362 transitions. [2024-12-02 05:56:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 05:56:17,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:17,990 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:17,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 05:56:17,990 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:17,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash -851396679, now seen corresponding path program 1 times [2024-12-02 05:56:17,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:17,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985892519] [2024-12-02 05:56:17,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:17,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:18,362 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:18,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:18,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985892519] [2024-12-02 05:56:18,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985892519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:18,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:18,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:56:18,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007436741] [2024-12-02 05:56:18,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:18,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:56:18,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:18,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:56:18,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:56:18,363 INFO L87 Difference]: Start difference. First operand 272 states and 362 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:18,713 INFO L93 Difference]: Finished difference Result 542 states and 720 transitions. [2024-12-02 05:56:18,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:56:18,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 117 [2024-12-02 05:56:18,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:18,716 INFO L225 Difference]: With dead ends: 542 [2024-12-02 05:56:18,716 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 05:56:18,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 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 05:56:18,717 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 240 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:18,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 477 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:56:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 05:56:18,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 269. [2024-12-02 05:56:18,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 224 states have (on average 1.2544642857142858) internal successors, (281), 226 states have internal predecessors, (281), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 05:56:18,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 357 transitions. [2024-12-02 05:56:18,748 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 357 transitions. Word has length 117 [2024-12-02 05:56:18,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:18,749 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 357 transitions. [2024-12-02 05:56:18,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 357 transitions. [2024-12-02 05:56:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:56:18,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:18,750 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:18,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 05:56:18,751 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:18,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash -837181581, now seen corresponding path program 1 times [2024-12-02 05:56:18,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:18,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738557355] [2024-12-02 05:56:18,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:18,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:19,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:19,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738557355] [2024-12-02 05:56:19,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738557355] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:19,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:19,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:56:19,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020371892] [2024-12-02 05:56:19,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:19,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:56:19,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:19,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:56:19,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:56:19,163 INFO L87 Difference]: Start difference. First operand 269 states and 357 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:19,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:19,473 INFO L93 Difference]: Finished difference Result 700 states and 919 transitions. [2024-12-02 05:56:19,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:56:19,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 118 [2024-12-02 05:56:19,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:19,476 INFO L225 Difference]: With dead ends: 700 [2024-12-02 05:56:19,476 INFO L226 Difference]: Without dead ends: 434 [2024-12-02 05:56:19,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:56:19,477 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 184 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:19,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 595 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:56:19,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-12-02 05:56:19,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 302. [2024-12-02 05:56:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 257 states have (on average 1.2334630350194553) internal successors, (317), 259 states have internal predecessors, (317), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 05:56:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 393 transitions. [2024-12-02 05:56:19,499 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 393 transitions. Word has length 118 [2024-12-02 05:56:19,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:19,499 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 393 transitions. [2024-12-02 05:56:19,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:56:19,499 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 393 transitions. [2024-12-02 05:56:19,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 05:56:19,501 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:19,501 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:19,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 05:56:19,501 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:19,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:19,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1358672584, now seen corresponding path program 1 times [2024-12-02 05:56:19,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:19,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742602536] [2024-12-02 05:56:19,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:19,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 05:56:21,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:21,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742602536] [2024-12-02 05:56:21,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742602536] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:21,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823266080] [2024-12-02 05:56:21,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:21,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:21,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:21,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:21,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 05:56:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:25,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-12-02 05:56:25,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:25,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 3 [2024-12-02 05:56:26,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 3 [2024-12-02 05:56:27,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 3 [2024-12-02 05:56:28,636 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 05:56:29,681 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 9 [2024-12-02 05:56:29,798 INFO L349 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2024-12-02 05:56:29,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2024-12-02 05:56:36,323 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 59 treesize of output 43 [2024-12-02 05:56:36,332 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 46 treesize of output 34 [2024-12-02 05:56:36,341 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 41 treesize of output 29 [2024-12-02 05:56:36,346 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 38 treesize of output 26 [2024-12-02 05:56:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 4 proven. 352 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 05:56:36,704 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:56:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:37,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823266080] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:37,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:56:37,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21, 37] total 62 [2024-12-02 05:56:37,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866622809] [2024-12-02 05:56:37,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:37,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:56:37,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:37,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:56:37,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=3545, Unknown=0, NotChecked=0, Total=3782 [2024-12-02 05:56:37,752 INFO L87 Difference]: Start difference. First operand 302 states and 393 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:38,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:38,561 INFO L93 Difference]: Finished difference Result 712 states and 919 transitions. [2024-12-02 05:56:38,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:56:38,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2024-12-02 05:56:38,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:38,564 INFO L225 Difference]: With dead ends: 712 [2024-12-02 05:56:38,564 INFO L226 Difference]: Without dead ends: 413 [2024-12-02 05:56:38,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1098 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=254, Invalid=3778, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 05:56:38,566 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 121 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:38,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 558 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 05:56:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-12-02 05:56:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 272. [2024-12-02 05:56:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 229 states have (on average 1.2139737991266375) internal successors, (278), 230 states have internal predecessors, (278), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 05:56:38,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 350 transitions. [2024-12-02 05:56:38,595 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 350 transitions. Word has length 119 [2024-12-02 05:56:38,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:38,595 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 350 transitions. [2024-12-02 05:56:38,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:38,596 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 350 transitions. [2024-12-02 05:56:38,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:56:38,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:38,597 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:38,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 05:56:38,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb46f683-fc03-4c75-b0d0-2f8b65cc5479/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 05:56:38,798 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:38,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:38,798 INFO L85 PathProgramCache]: Analyzing trace with hash 54726989, now seen corresponding path program 1 times [2024-12-02 05:56:38,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:38,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623722441] [2024-12-02 05:56:38,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:38,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:39,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:39,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623722441] [2024-12-02 05:56:39,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623722441] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:39,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:39,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:56:39,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14627452] [2024-12-02 05:56:39,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:39,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:56:39,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:39,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:56:39,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:56:39,445 INFO L87 Difference]: Start difference. First operand 272 states and 350 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:39,853 INFO L93 Difference]: Finished difference Result 636 states and 818 transitions. [2024-12-02 05:56:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:56:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2024-12-02 05:56:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:39,856 INFO L225 Difference]: With dead ends: 636 [2024-12-02 05:56:39,856 INFO L226 Difference]: Without dead ends: 367 [2024-12-02 05:56:39,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 05:56:39,857 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 55 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:39,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 551 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:56:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-12-02 05:56:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 272. [2024-12-02 05:56:39,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 229 states have (on average 1.2096069868995634) internal successors, (277), 230 states have internal predecessors, (277), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 05:56:39,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 349 transitions. [2024-12-02 05:56:39,895 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 349 transitions. Word has length 120 [2024-12-02 05:56:39,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:39,896 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 349 transitions. [2024-12-02 05:56:39,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 05:56:39,896 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 349 transitions. [2024-12-02 05:56:39,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:56:39,897 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:39,897 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:39,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 05:56:39,897 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:39,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:39,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1348302124, now seen corresponding path program 1 times [2024-12-02 05:56:39,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:39,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182710420] [2024-12-02 05:56:39,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:39,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 05:56:40,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:40,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182710420] [2024-12-02 05:56:40,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182710420] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:40,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:40,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:56:40,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254005011] [2024-12-02 05:56:40,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:40,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:56:40,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:40,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:56:40,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:40,484 INFO L87 Difference]: Start difference. First operand 272 states and 349 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 05:56:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:40,741 INFO L93 Difference]: Finished difference Result 309 states and 391 transitions. [2024-12-02 05:56:40,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:56:40,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 120 [2024-12-02 05:56:40,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:40,744 INFO L225 Difference]: With dead ends: 309 [2024-12-02 05:56:40,744 INFO L226 Difference]: Without dead ends: 307 [2024-12-02 05:56:40,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:56:40,745 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 159 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:40,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 601 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:56:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-12-02 05:56:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 250. [2024-12-02 05:56:40,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 206 states have (on average 1.1893203883495145) internal successors, (245), 207 states have internal predecessors, (245), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 05:56:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 317 transitions. [2024-12-02 05:56:40,784 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 317 transitions. Word has length 120 [2024-12-02 05:56:40,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:40,784 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 317 transitions. [2024-12-02 05:56:40,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 05:56:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 317 transitions. [2024-12-02 05:56:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:56:40,785 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:40,785 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:40,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 05:56:40,785 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:40,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1350149166, now seen corresponding path program 1 times [2024-12-02 05:56:40,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:40,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86650321] [2024-12-02 05:56:40,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat