./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/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_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/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_5432019a-3936-41b1-9bc0-c6368757be0f/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 5d0383a4e6cd736ce942b7c7434972bd19bfcd72f59366bdeede374768e8834f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:55:39,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:55:39,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:55:39,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:55:39,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:55:39,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:55:39,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:55:39,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:55:39,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:55:39,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:55:39,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:55:39,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:55:39,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:55:39,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:55:39,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:55:39,262 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:55:39,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:55:39,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:55:39,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:55:39,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:55:39,263 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_5432019a-3936-41b1-9bc0-c6368757be0f/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 -> 5d0383a4e6cd736ce942b7c7434972bd19bfcd72f59366bdeede374768e8834f [2024-12-02 07:55:39,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:55:39,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:55:39,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:55:39,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:55:39,528 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:55:39,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i [2024-12-02 07:55:42,185 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/data/0f2101d46/813ed39785f549e398af1ad5d1d0f974/FLAGbcd7816d5 [2024-12-02 07:55:42,411 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:55:42,411 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i [2024-12-02 07:55:42,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/data/0f2101d46/813ed39785f549e398af1ad5d1d0f974/FLAGbcd7816d5 [2024-12-02 07:55:42,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/data/0f2101d46/813ed39785f549e398af1ad5d1d0f974 [2024-12-02 07:55:42,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:55:42,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:55:42,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:55:42,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:55:42,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:55:42,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:55:42" (1/1) ... [2024-12-02 07:55:42,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6771ba7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:42, skipping insertion in model container [2024-12-02 07:55:42,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:55:42" (1/1) ... [2024-12-02 07:55:42,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:55:42,870 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_5432019a-3936-41b1-9bc0-c6368757be0f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i[919,932] [2024-12-02 07:55:42,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:55:42,945 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:55:42,954 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_5432019a-3936-41b1-9bc0-c6368757be0f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i[919,932] [2024-12-02 07:55:42,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:55:43,003 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:55:43,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43 WrapperNode [2024-12-02 07:55:43,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:55:43,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:55:43,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:55:43,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:55:43,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,056 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-12-02 07:55:43,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:55:43,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:55:43,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:55:43,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:55:43,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,088 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:55:43,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,098 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:55:43,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:55:43,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:55:43,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:55:43,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (1/1) ... [2024-12-02 07:55:43,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:55:43,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:55:43,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:55:43,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:55:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:55:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:55:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:55:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:55:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:55:43,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:55:43,242 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:55:43,244 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:55:43,652 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-02 07:55:43,652 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:55:43,663 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:55:43,663 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:55:43,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:55:43 BoogieIcfgContainer [2024-12-02 07:55:43,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:55:43,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:55:43,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:55:43,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:55:43,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:55:42" (1/3) ... [2024-12-02 07:55:43,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104e5218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:55:43, skipping insertion in model container [2024-12-02 07:55:43,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:43" (2/3) ... [2024-12-02 07:55:43,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104e5218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:55:43, skipping insertion in model container [2024-12-02 07:55:43,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:55:43" (3/3) ... [2024-12-02 07:55:43,672 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i [2024-12-02 07:55:43,687 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:55:43,688 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-86.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:55:43,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:55:43,753 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;@613141ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:55:43,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:55:43,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:55:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 07:55:43,767 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:43,768 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:43,768 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:43,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:43,772 INFO L85 PathProgramCache]: Analyzing trace with hash -840252700, now seen corresponding path program 1 times [2024-12-02 07:55:43,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:43,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501011712] [2024-12-02 07:55:43,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:43,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-12-02 07:55:44,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:44,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501011712] [2024-12-02 07:55:44,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501011712] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:55:44,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922346417] [2024-12-02 07:55:44,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:44,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:55:44,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:55:44,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:55:44,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:55:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:44,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:55:44,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:55:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-12-02 07:55:44,272 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:55:44,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922346417] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:44,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:55:44,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:55:44,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544750796] [2024-12-02 07:55:44,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:44,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:55:44,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:44,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:55:44,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:55:44,299 INFO L87 Difference]: Start difference. First operand has 103 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:55:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:44,328 INFO L93 Difference]: Finished difference Result 199 states and 353 transitions. [2024-12-02 07:55:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:55:44,329 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 196 [2024-12-02 07:55:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:44,335 INFO L225 Difference]: With dead ends: 199 [2024-12-02 07:55:44,335 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 07:55:44,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:55:44,341 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:44,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:55:44,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 07:55:44,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-12-02 07:55:44,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:55:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 156 transitions. [2024-12-02 07:55:44,399 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 156 transitions. Word has length 196 [2024-12-02 07:55:44,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:44,400 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 156 transitions. [2024-12-02 07:55:44,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:55:44,400 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 156 transitions. [2024-12-02 07:55:44,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 07:55:44,404 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:44,404 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:44,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:55:44,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:55:44,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:44,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:44,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1343791842, now seen corresponding path program 1 times [2024-12-02 07:55:44,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:44,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13304289] [2024-12-02 07:55:44,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:44,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:55:44,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:44,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13304289] [2024-12-02 07:55:44,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13304289] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:44,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:44,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:55:44,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457700152] [2024-12-02 07:55:44,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:44,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:55:44,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:44,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:55:44,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:55:44,908 INFO L87 Difference]: Start difference. First operand 99 states and 156 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:44,946 INFO L93 Difference]: Finished difference Result 196 states and 311 transitions. [2024-12-02 07:55:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:55:44,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 07:55:44,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:44,949 INFO L225 Difference]: With dead ends: 196 [2024-12-02 07:55:44,949 INFO L226 Difference]: Without dead ends: 100 [2024-12-02 07:55:44,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:55:44,951 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:44,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:55:44,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-12-02 07:55:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-12-02 07:55:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:55:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2024-12-02 07:55:44,963 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 196 [2024-12-02 07:55:44,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:44,965 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2024-12-02 07:55:44,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2024-12-02 07:55:44,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 07:55:44,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:44,969 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:44,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:55:44,969 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:44,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1176168092, now seen corresponding path program 1 times [2024-12-02 07:55:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:44,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410508048] [2024-12-02 07:55:44,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:55:45,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:45,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410508048] [2024-12-02 07:55:45,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410508048] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:45,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:45,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:55:45,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084870607] [2024-12-02 07:55:45,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:45,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:55:45,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:45,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:55:45,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:45,371 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:45,679 INFO L93 Difference]: Finished difference Result 295 states and 466 transitions. [2024-12-02 07:55:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:55:45,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 07:55:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:45,682 INFO L225 Difference]: With dead ends: 295 [2024-12-02 07:55:45,682 INFO L226 Difference]: Without dead ends: 198 [2024-12-02 07:55:45,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:45,684 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 116 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:45,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 532 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:55:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-12-02 07:55:45,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 153. [2024-12-02 07:55:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 88 states have internal predecessors, (116), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:55:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 240 transitions. [2024-12-02 07:55:45,707 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 240 transitions. Word has length 196 [2024-12-02 07:55:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:45,708 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 240 transitions. [2024-12-02 07:55:45,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 240 transitions. [2024-12-02 07:55:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 07:55:45,711 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:45,711 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:45,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:55:45,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:45,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash -753466266, now seen corresponding path program 1 times [2024-12-02 07:55:45,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:45,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525041244] [2024-12-02 07:55:45,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:45,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:51,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:55:51,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:51,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525041244] [2024-12-02 07:55:51,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525041244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:51,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:51,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:55:51,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396300711] [2024-12-02 07:55:51,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:51,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:55:51,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:51,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:55:51,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:55:51,908 INFO L87 Difference]: Start difference. First operand 153 states and 240 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:53,184 INFO L93 Difference]: Finished difference Result 451 states and 710 transitions. [2024-12-02 07:55:53,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:55:53,185 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 07:55:53,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:53,188 INFO L225 Difference]: With dead ends: 451 [2024-12-02 07:55:53,188 INFO L226 Difference]: Without dead ends: 354 [2024-12-02 07:55:53,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:55:53,190 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 689 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:53,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1311 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:55:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-12-02 07:55:53,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 195. [2024-12-02 07:55:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.3923076923076922) internal successors, (181), 130 states have internal predecessors, (181), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:55:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 305 transitions. [2024-12-02 07:55:53,219 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 305 transitions. Word has length 196 [2024-12-02 07:55:53,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:53,220 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 305 transitions. [2024-12-02 07:55:53,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:53,220 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 305 transitions. [2024-12-02 07:55:53,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 07:55:53,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:53,223 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:53,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:55:53,223 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:53,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:53,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1547356324, now seen corresponding path program 1 times [2024-12-02 07:55:53,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:53,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753161334] [2024-12-02 07:55:53,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:53,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:55:53,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:53,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753161334] [2024-12-02 07:55:53,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753161334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:53,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:53,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:55:53,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29974845] [2024-12-02 07:55:53,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:53,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:55:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:53,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:55:53,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:55:53,286 INFO L87 Difference]: Start difference. First operand 195 states and 305 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:53,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:53,326 INFO L93 Difference]: Finished difference Result 388 states and 611 transitions. [2024-12-02 07:55:53,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:55:53,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-12-02 07:55:53,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:53,329 INFO L225 Difference]: With dead ends: 388 [2024-12-02 07:55:53,329 INFO L226 Difference]: Without dead ends: 291 [2024-12-02 07:55:53,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:55:53,331 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 148 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:53,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 353 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:55:53,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-12-02 07:55:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 289. [2024-12-02 07:55:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 192 states have (on average 1.390625) internal successors, (267), 192 states have internal predecessors, (267), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:55:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 453 transitions. [2024-12-02 07:55:53,366 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 453 transitions. Word has length 196 [2024-12-02 07:55:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:53,366 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 453 transitions. [2024-12-02 07:55:53,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:55:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 453 transitions. [2024-12-02 07:55:53,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 07:55:53,369 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:53,369 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:55:53,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:55:53,369 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:53,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:53,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1053454892, now seen corresponding path program 1 times [2024-12-02 07:55:53,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:53,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600939600] [2024-12-02 07:55:53,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:53,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:55:58,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:58,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600939600] [2024-12-02 07:55:58,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600939600] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:58,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:58,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:55:58,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656860255] [2024-12-02 07:55:58,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:58,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:55:58,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:58,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:55:58,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:55:58,644 INFO L87 Difference]: Start difference. First operand 289 states and 453 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:56:00,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:00,894 INFO L93 Difference]: Finished difference Result 439 states and 679 transitions. [2024-12-02 07:56:00,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:56:00,895 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-12-02 07:56:00,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:00,896 INFO L225 Difference]: With dead ends: 439 [2024-12-02 07:56:00,896 INFO L226 Difference]: Without dead ends: 437 [2024-12-02 07:56:00,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:56:00,897 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 910 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:00,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1402 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:56:00,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-12-02 07:56:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 290. [2024-12-02 07:56:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 193 states have (on average 1.38860103626943) internal successors, (268), 193 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:56:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 454 transitions. [2024-12-02 07:56:00,926 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 454 transitions. Word has length 197 [2024-12-02 07:56:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:00,926 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 454 transitions. [2024-12-02 07:56:00,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:56:00,927 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 454 transitions. [2024-12-02 07:56:00,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 07:56:00,929 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:00,929 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:56:00,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:56:00,929 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:00,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash 510517370, now seen corresponding path program 1 times [2024-12-02 07:56:00,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:00,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509267139] [2024-12-02 07:56:00,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:00,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:56:01,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:01,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509267139] [2024-12-02 07:56:01,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509267139] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:01,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:01,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:56:01,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618169901] [2024-12-02 07:56:01,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:01,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:56:01,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:01,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:56:01,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:56:01,166 INFO L87 Difference]: Start difference. First operand 290 states and 454 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:56:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:01,209 INFO L93 Difference]: Finished difference Result 542 states and 855 transitions. [2024-12-02 07:56:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:56:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-12-02 07:56:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:01,213 INFO L225 Difference]: With dead ends: 542 [2024-12-02 07:56:01,213 INFO L226 Difference]: Without dead ends: 348 [2024-12-02 07:56:01,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:56:01,215 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 47 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:01,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 445 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:56:01,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-12-02 07:56:01,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 290. [2024-12-02 07:56:01,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 193 states have (on average 1.3730569948186528) internal successors, (265), 193 states have internal predecessors, (265), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:56:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 451 transitions. [2024-12-02 07:56:01,240 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 451 transitions. Word has length 197 [2024-12-02 07:56:01,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:01,241 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 451 transitions. [2024-12-02 07:56:01,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:56:01,241 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 451 transitions. [2024-12-02 07:56:01,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 07:56:01,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:01,243 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:56:01,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:56:01,243 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:01,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:01,244 INFO L85 PathProgramCache]: Analyzing trace with hash -500599880, now seen corresponding path program 1 times [2024-12-02 07:56:01,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:01,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733087908] [2024-12-02 07:56:01,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:01,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:56:06,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:06,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733087908] [2024-12-02 07:56:06,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733087908] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:06,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:06,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:56:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17369393] [2024-12-02 07:56:06,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:06,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:56:06,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:06,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:56:06,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:56:06,691 INFO L87 Difference]: Start difference. First operand 290 states and 451 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:56:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:12,124 INFO L93 Difference]: Finished difference Result 469 states and 721 transitions. [2024-12-02 07:56:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 07:56:12,125 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-12-02 07:56:12,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:12,127 INFO L225 Difference]: With dead ends: 469 [2024-12-02 07:56:12,127 INFO L226 Difference]: Without dead ends: 467 [2024-12-02 07:56:12,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=264, Invalid=792, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 07:56:12,128 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 812 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:12,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1542 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 07:56:12,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-12-02 07:56:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 290. [2024-12-02 07:56:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 193 states have (on average 1.3730569948186528) internal successors, (265), 193 states have internal predecessors, (265), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:56:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 451 transitions. [2024-12-02 07:56:12,147 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 451 transitions. Word has length 197 [2024-12-02 07:56:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:12,148 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 451 transitions. [2024-12-02 07:56:12,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:56:12,148 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 451 transitions. [2024-12-02 07:56:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 07:56:12,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:12,150 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:56:12,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:56:12,151 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:12,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:12,151 INFO L85 PathProgramCache]: Analyzing trace with hash -556228741, now seen corresponding path program 1 times [2024-12-02 07:56:12,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:12,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713533461] [2024-12-02 07:56:12,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:12,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:56:15,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:15,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713533461] [2024-12-02 07:56:15,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713533461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:15,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:15,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:56:15,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195118976] [2024-12-02 07:56:15,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:15,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:56:15,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:15,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:56:15,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:56:15,248 INFO L87 Difference]: Start difference. First operand 290 states and 451 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:56:18,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:18,670 INFO L93 Difference]: Finished difference Result 510 states and 782 transitions. [2024-12-02 07:56:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 07:56:18,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 197 [2024-12-02 07:56:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:18,673 INFO L225 Difference]: With dead ends: 510 [2024-12-02 07:56:18,673 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 07:56:18,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 07:56:18,674 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 852 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:18,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1677 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:56:18,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 07:56:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 325. [2024-12-02 07:56:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 228 states have (on average 1.4035087719298245) internal successors, (320), 228 states have internal predecessors, (320), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:56:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 506 transitions. [2024-12-02 07:56:18,699 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 506 transitions. Word has length 197 [2024-12-02 07:56:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:18,700 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 506 transitions. [2024-12-02 07:56:18,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:56:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 506 transitions. [2024-12-02 07:56:18,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 07:56:18,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:18,702 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:56:18,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:56:18,702 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:18,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:18,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1577297095, now seen corresponding path program 1 times [2024-12-02 07:56:18,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:18,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736474519] [2024-12-02 07:56:18,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:18,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:56:27,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736474519] [2024-12-02 07:56:27,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736474519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:27,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:27,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:56:27,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814900597] [2024-12-02 07:56:27,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:27,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:56:27,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:27,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:56:27,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:56:27,218 INFO L87 Difference]: Start difference. First operand 325 states and 506 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:56:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:37,502 INFO L93 Difference]: Finished difference Result 504 states and 776 transitions. [2024-12-02 07:56:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 07:56:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 197 [2024-12-02 07:56:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:37,506 INFO L225 Difference]: With dead ends: 504 [2024-12-02 07:56:37,506 INFO L226 Difference]: Without dead ends: 502 [2024-12-02 07:56:37,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 07:56:37,507 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 904 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:37,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 1737 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 07:56:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-12-02 07:56:37,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 325. [2024-12-02 07:56:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 228 states have (on average 1.4035087719298245) internal successors, (320), 228 states have internal predecessors, (320), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:56:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 506 transitions. [2024-12-02 07:56:37,528 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 506 transitions. Word has length 197 [2024-12-02 07:56:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:37,528 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 506 transitions. [2024-12-02 07:56:37,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:56:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 506 transitions. [2024-12-02 07:56:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:56:37,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:37,530 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:56:37,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:56:37,530 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:37,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:37,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1804531518, now seen corresponding path program 1 times [2024-12-02 07:56:37,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:37,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330165543] [2024-12-02 07:56:37,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:56:41,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:41,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330165543] [2024-12-02 07:56:41,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330165543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:41,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:41,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:56:41,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347749345] [2024-12-02 07:56:41,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:41,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:56:41,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:41,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:56:41,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:56:41,386 INFO L87 Difference]: Start difference. First operand 325 states and 506 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:56:42,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:42,947 INFO L93 Difference]: Finished difference Result 467 states and 720 transitions. [2024-12-02 07:56:42,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:56:42,948 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-12-02 07:56:42,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:42,949 INFO L225 Difference]: With dead ends: 467 [2024-12-02 07:56:42,949 INFO L226 Difference]: Without dead ends: 465 [2024-12-02 07:56:42,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:56:42,950 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 1025 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:42,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1921 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:56:42,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-12-02 07:56:42,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 322. [2024-12-02 07:56:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 225 states have (on average 1.4044444444444444) internal successors, (316), 225 states have internal predecessors, (316), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:56:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 502 transitions. [2024-12-02 07:56:42,979 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 502 transitions. Word has length 198 [2024-12-02 07:56:42,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:42,979 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 502 transitions. [2024-12-02 07:56:42,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:56:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 502 transitions. [2024-12-02 07:56:42,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:56:42,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:42,981 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:56:42,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:56:42,981 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:42,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1024106525, now seen corresponding path program 1 times [2024-12-02 07:56:42,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:42,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406513106] [2024-12-02 07:56:42,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:56:53,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:53,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406513106] [2024-12-02 07:56:53,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406513106] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:53,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:53,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:56:53,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144473476] [2024-12-02 07:56:53,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:53,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:56:53,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:53,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:56:53,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:56:53,302 INFO L87 Difference]: Start difference. First operand 322 states and 502 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:57:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:57:02,825 INFO L93 Difference]: Finished difference Result 505 states and 777 transitions. [2024-12-02 07:57:02,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 07:57:02,826 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 07:57:02,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:57:02,828 INFO L225 Difference]: With dead ends: 505 [2024-12-02 07:57:02,828 INFO L226 Difference]: Without dead ends: 503 [2024-12-02 07:57:02,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=294, Invalid=762, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 07:57:02,828 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 785 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:57:02,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1635 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:57:02,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-12-02 07:57:02,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 327. [2024-12-02 07:57:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 230 states have (on average 1.4043478260869566) internal successors, (323), 230 states have internal predecessors, (323), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:57:02,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 509 transitions. [2024-12-02 07:57:02,846 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 509 transitions. Word has length 198 [2024-12-02 07:57:02,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:57:02,846 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 509 transitions. [2024-12-02 07:57:02,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:57:02,846 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 509 transitions. [2024-12-02 07:57:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:57:02,848 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:57:02,848 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:57:02,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:57:02,848 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:57:02,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:57:02,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1318796099, now seen corresponding path program 1 times [2024-12-02 07:57:02,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:57:02,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873616996] [2024-12-02 07:57:02,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:57:02,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:57:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:57:13,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:57:13,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:57:13,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873616996] [2024-12-02 07:57:13,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873616996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:57:13,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:57:13,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:57:13,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65412938] [2024-12-02 07:57:13,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:57:13,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:57:13,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:57:13,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:57:13,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:57:13,145 INFO L87 Difference]: Start difference. First operand 327 states and 509 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:57:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:57:31,173 INFO L93 Difference]: Finished difference Result 535 states and 824 transitions. [2024-12-02 07:57:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 07:57:31,174 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-12-02 07:57:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:57:31,176 INFO L225 Difference]: With dead ends: 535 [2024-12-02 07:57:31,176 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 07:57:31,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=392, Invalid=1090, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 07:57:31,177 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 788 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:57:31,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 2109 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 07:57:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 07:57:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 328. [2024-12-02 07:57:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 231 states have (on average 1.4025974025974026) internal successors, (324), 231 states have internal predecessors, (324), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:57:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 510 transitions. [2024-12-02 07:57:31,199 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 510 transitions. Word has length 198 [2024-12-02 07:57:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:57:31,199 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 510 transitions. [2024-12-02 07:57:31,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:57:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 510 transitions. [2024-12-02 07:57:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:57:31,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:57:31,201 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:57:31,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:57:31,201 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:57:31,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:57:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash -564241377, now seen corresponding path program 1 times [2024-12-02 07:57:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:57:31,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852776932] [2024-12-02 07:57:31,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:57:31,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:57:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:57:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:57:40,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:57:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852776932] [2024-12-02 07:57:40,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852776932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:57:40,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:57:40,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:57:40,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021528312] [2024-12-02 07:57:40,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:57:40,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:57:40,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:57:40,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:57:40,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:57:40,799 INFO L87 Difference]: Start difference. First operand 328 states and 510 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:57:49,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:57:49,569 INFO L93 Difference]: Finished difference Result 501 states and 773 transitions. [2024-12-02 07:57:49,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 07:57:49,570 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 07:57:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:57:49,572 INFO L225 Difference]: With dead ends: 501 [2024-12-02 07:57:49,572 INFO L226 Difference]: Without dead ends: 499 [2024-12-02 07:57:49,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=315, Invalid=807, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 07:57:49,572 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 587 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:57:49,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1772 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:57:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-12-02 07:57:49,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 328. [2024-12-02 07:57:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 231 states have (on average 1.4025974025974026) internal successors, (324), 231 states have internal predecessors, (324), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:57:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 510 transitions. [2024-12-02 07:57:49,602 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 510 transitions. Word has length 198 [2024-12-02 07:57:49,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:57:49,602 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 510 transitions. [2024-12-02 07:57:49,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:57:49,602 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 510 transitions. [2024-12-02 07:57:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:57:49,603 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:57:49,604 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:57:49,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:57:49,604 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:57:49,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:57:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash -269551803, now seen corresponding path program 1 times [2024-12-02 07:57:49,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:57:49,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683049432] [2024-12-02 07:57:49,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:57:49,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:57:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:57:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:57:58,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:57:58,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683049432] [2024-12-02 07:57:58,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683049432] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:57:58,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:57:58,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:57:58,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691603385] [2024-12-02 07:57:58,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:57:58,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:57:58,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:57:58,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:57:58,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:57:58,538 INFO L87 Difference]: Start difference. First operand 328 states and 510 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:58:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:58:13,016 INFO L93 Difference]: Finished difference Result 503 states and 775 transitions. [2024-12-02 07:58:13,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 07:58:13,017 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 07:58:13,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:58:13,019 INFO L225 Difference]: With dead ends: 503 [2024-12-02 07:58:13,019 INFO L226 Difference]: Without dead ends: 501 [2024-12-02 07:58:13,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=379, Invalid=1103, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 07:58:13,020 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 575 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:58:13,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1946 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 07:58:13,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-12-02 07:58:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 326. [2024-12-02 07:58:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 229 states have (on average 1.4017467248908297) internal successors, (321), 229 states have internal predecessors, (321), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:58:13,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 507 transitions. [2024-12-02 07:58:13,036 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 507 transitions. Word has length 198 [2024-12-02 07:58:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:58:13,037 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 507 transitions. [2024-12-02 07:58:13,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:58:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 507 transitions. [2024-12-02 07:58:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:58:13,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:58:13,038 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:58:13,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:58:13,038 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:58:13,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:58:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash 94598258, now seen corresponding path program 1 times [2024-12-02 07:58:13,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:58:13,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826328961] [2024-12-02 07:58:13,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:58:13,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:58:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:58:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:58:29,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:58:29,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826328961] [2024-12-02 07:58:29,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826328961] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:58:29,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:58:29,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:58:29,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758623880] [2024-12-02 07:58:29,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:58:29,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:58:29,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:58:29,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:58:29,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:58:29,177 INFO L87 Difference]: Start difference. First operand 326 states and 507 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:58:42,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:58:42,107 INFO L93 Difference]: Finished difference Result 508 states and 780 transitions. [2024-12-02 07:58:42,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 07:58:42,108 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-12-02 07:58:42,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:58:42,110 INFO L225 Difference]: With dead ends: 508 [2024-12-02 07:58:42,110 INFO L226 Difference]: Without dead ends: 506 [2024-12-02 07:58:42,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=344, Invalid=916, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 07:58:42,111 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 566 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:58:42,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1627 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 07:58:42,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-12-02 07:58:42,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 332. [2024-12-02 07:58:42,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 235 states have (on average 1.4) internal successors, (329), 235 states have internal predecessors, (329), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:58:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 515 transitions. [2024-12-02 07:58:42,129 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 515 transitions. Word has length 198 [2024-12-02 07:58:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:58:42,129 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 515 transitions. [2024-12-02 07:58:42,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 07:58:42,129 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 515 transitions. [2024-12-02 07:58:42,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 07:58:42,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:58:42,131 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:58:42,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:58:42,131 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:58:42,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:58:42,131 INFO L85 PathProgramCache]: Analyzing trace with hash -926470096, now seen corresponding path program 1 times [2024-12-02 07:58:42,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:58:42,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110431740] [2024-12-02 07:58:42,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:58:42,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:58:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:58:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:58:58,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:58:58,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110431740] [2024-12-02 07:58:58,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110431740] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:58:58,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:58:58,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 07:58:58,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539455802] [2024-12-02 07:58:58,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:58:58,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 07:58:58,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:58:58,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 07:58:58,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:58:58,085 INFO L87 Difference]: Start difference. First operand 332 states and 515 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:59:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:59:13,863 INFO L93 Difference]: Finished difference Result 502 states and 774 transitions. [2024-12-02 07:59:13,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 07:59:13,864 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 198 [2024-12-02 07:59:13,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:59:13,865 INFO L225 Difference]: With dead ends: 502 [2024-12-02 07:59:13,865 INFO L226 Difference]: Without dead ends: 500 [2024-12-02 07:59:13,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=355, Invalid=977, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:59:13,866 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 867 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:59:13,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1589 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 07:59:13,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-12-02 07:59:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 332. [2024-12-02 07:59:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 235 states have (on average 1.4) internal successors, (329), 235 states have internal predecessors, (329), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:59:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 515 transitions. [2024-12-02 07:59:13,883 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 515 transitions. Word has length 198 [2024-12-02 07:59:13,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:59:13,884 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 515 transitions. [2024-12-02 07:59:13,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 07:59:13,884 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 515 transitions. [2024-12-02 07:59:13,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 07:59:13,885 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:59:13,885 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:59:13,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:59:13,885 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:59:13,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:59:13,885 INFO L85 PathProgramCache]: Analyzing trace with hash -979665579, now seen corresponding path program 1 times [2024-12-02 07:59:13,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:59:13,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225109339] [2024-12-02 07:59:13,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:59:13,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:59:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:59:28,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:59:28,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:59:28,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225109339] [2024-12-02 07:59:28,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225109339] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:59:28,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:59:28,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:59:28,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001527438] [2024-12-02 07:59:28,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:59:28,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:59:28,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:59:28,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:59:28,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:59:28,527 INFO L87 Difference]: Start difference. First operand 332 states and 515 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:59:42,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:59:42,384 INFO L93 Difference]: Finished difference Result 534 states and 824 transitions. [2024-12-02 07:59:42,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 07:59:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2024-12-02 07:59:42,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:59:42,386 INFO L225 Difference]: With dead ends: 534 [2024-12-02 07:59:42,387 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:59:42,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 07:59:42,388 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 914 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:59:42,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 2302 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 07:59:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:59:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 335. [2024-12-02 07:59:42,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 238 states have (on average 1.3991596638655461) internal successors, (333), 238 states have internal predecessors, (333), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:59:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 519 transitions. [2024-12-02 07:59:42,406 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 519 transitions. Word has length 199 [2024-12-02 07:59:42,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:59:42,406 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 519 transitions. [2024-12-02 07:59:42,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:59:42,407 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 519 transitions. [2024-12-02 07:59:42,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 07:59:42,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:59:42,408 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:59:42,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:59:42,408 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:59:42,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:59:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1321157011, now seen corresponding path program 1 times [2024-12-02 07:59:42,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:59:42,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726042573] [2024-12-02 07:59:42,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:59:42,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:59:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:59:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 07:59:51,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:59:51,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726042573] [2024-12-02 07:59:51,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726042573] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:59:51,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:59:51,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 07:59:51,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581279131] [2024-12-02 07:59:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:59:51,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:59:51,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:59:51,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:59:51,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:59:51,105 INFO L87 Difference]: Start difference. First operand 335 states and 519 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:59:57,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:59:57,703 INFO L93 Difference]: Finished difference Result 529 states and 818 transitions. [2024-12-02 07:59:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 07:59:57,704 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2024-12-02 07:59:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:59:57,706 INFO L225 Difference]: With dead ends: 529 [2024-12-02 07:59:57,706 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 07:59:57,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=468, Invalid=1338, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 07:59:57,707 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 776 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:59:57,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2640 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:59:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 07:59:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 332. [2024-12-02 07:59:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 235 states have (on average 1.4) internal successors, (329), 235 states have internal predecessors, (329), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 07:59:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 515 transitions. [2024-12-02 07:59:57,719 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 515 transitions. Word has length 199 [2024-12-02 07:59:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:59:57,720 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 515 transitions. [2024-12-02 07:59:57,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:59:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 515 transitions. [2024-12-02 07:59:57,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 07:59:57,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:59:57,721 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:59:57,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:59:57,721 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:59:57,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:59:57,721 INFO L85 PathProgramCache]: Analyzing trace with hash -275092986, now seen corresponding path program 1 times [2024-12-02 07:59:57,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:59:57,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416952485] [2024-12-02 07:59:57,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:59:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:59:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 08:00:15,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:00:15,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416952485] [2024-12-02 08:00:15,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416952485] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:15,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:00:15,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:00:15,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793099833] [2024-12-02 08:00:15,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:15,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:00:15,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:00:15,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:00:15,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:00:15,908 INFO L87 Difference]: Start difference. First operand 332 states and 515 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:00:31,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:31,079 INFO L93 Difference]: Finished difference Result 503 states and 775 transitions. [2024-12-02 08:00:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 08:00:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-12-02 08:00:31,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:31,082 INFO L225 Difference]: With dead ends: 503 [2024-12-02 08:00:31,083 INFO L226 Difference]: Without dead ends: 501 [2024-12-02 08:00:31,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 08:00:31,084 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 514 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:31,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1900 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 08:00:31,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-12-02 08:00:31,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 334. [2024-12-02 08:00:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 237 states have (on average 1.40084388185654) internal successors, (332), 237 states have internal predecessors, (332), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:00:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 518 transitions. [2024-12-02 08:00:31,111 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 518 transitions. Word has length 199 [2024-12-02 08:00:31,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:31,112 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 518 transitions. [2024-12-02 08:00:31,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:00:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 518 transitions. [2024-12-02 08:00:31,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 08:00:31,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:31,113 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:00:31,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:00:31,113 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:31,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 19596588, now seen corresponding path program 1 times [2024-12-02 08:00:31,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:31,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084181185] [2024-12-02 08:00:31,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:31,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 08:00:43,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:00:43,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084181185] [2024-12-02 08:00:43,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084181185] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:43,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:00:43,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:00:43,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666614205] [2024-12-02 08:00:43,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:43,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:00:43,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:00:43,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:00:43,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:00:43,078 INFO L87 Difference]: Start difference. First operand 334 states and 518 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:00:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:51,977 INFO L93 Difference]: Finished difference Result 503 states and 775 transitions. [2024-12-02 08:00:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 08:00:51,978 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-12-02 08:00:51,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:51,979 INFO L225 Difference]: With dead ends: 503 [2024-12-02 08:00:51,979 INFO L226 Difference]: Without dead ends: 501 [2024-12-02 08:00:51,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=385, Invalid=1021, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 08:00:51,980 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 570 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:51,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1818 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 08:00:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-12-02 08:00:51,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 335. [2024-12-02 08:00:51,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 238 states have (on average 1.3991596638655461) internal successors, (333), 238 states have internal predecessors, (333), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:00:51,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 519 transitions. [2024-12-02 08:00:51,996 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 519 transitions. Word has length 199 [2024-12-02 08:00:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:51,996 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 519 transitions. [2024-12-02 08:00:51,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:00:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 519 transitions. [2024-12-02 08:00:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 08:00:51,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:51,998 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:00:51,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:00:51,998 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:51,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1863440888, now seen corresponding path program 1 times [2024-12-02 08:00:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285790116] [2024-12-02 08:00:51,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:51,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:01:06,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 08:01:06,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:01:06,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285790116] [2024-12-02 08:01:06,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285790116] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:01:06,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:01:06,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:01:06,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626416114] [2024-12-02 08:01:06,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:01:06,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:01:06,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:01:06,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:01:06,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:01:06,837 INFO L87 Difference]: Start difference. First operand 335 states and 519 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:01:17,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:01:17,997 INFO L93 Difference]: Finished difference Result 499 states and 771 transitions. [2024-12-02 08:01:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 08:01:17,998 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-12-02 08:01:17,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:01:18,000 INFO L225 Difference]: With dead ends: 499 [2024-12-02 08:01:18,000 INFO L226 Difference]: Without dead ends: 497 [2024-12-02 08:01:18,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=380, Invalid=952, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 08:01:18,002 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 630 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:01:18,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 1602 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 08:01:18,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-12-02 08:01:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 335. [2024-12-02 08:01:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 238 states have (on average 1.3991596638655461) internal successors, (333), 238 states have internal predecessors, (333), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:01:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 519 transitions. [2024-12-02 08:01:18,018 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 519 transitions. Word has length 199 [2024-12-02 08:01:18,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:01:18,018 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 519 transitions. [2024-12-02 08:01:18,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:01:18,018 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 519 transitions. [2024-12-02 08:01:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 08:01:18,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:01:18,019 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:01:18,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:01:18,019 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:01:18,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:01:18,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1568751314, now seen corresponding path program 1 times [2024-12-02 08:01:18,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:01:18,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738587002] [2024-12-02 08:01:18,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:01:18,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:01:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:01:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 08:01:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:01:34,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738587002] [2024-12-02 08:01:34,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738587002] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:01:34,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:01:34,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 08:01:34,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611806894] [2024-12-02 08:01:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:01:34,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 08:01:34,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:01:34,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 08:01:34,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:01:34,441 INFO L87 Difference]: Start difference. First operand 335 states and 519 transitions. Second operand has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 08:02:02,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:02:02,181 INFO L93 Difference]: Finished difference Result 537 states and 827 transitions. [2024-12-02 08:02:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 08:02:02,182 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 199 [2024-12-02 08:02:02,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:02:02,184 INFO L225 Difference]: With dead ends: 537 [2024-12-02 08:02:02,184 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 08:02:02,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=508, Invalid=1472, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 08:02:02,184 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 843 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:02:02,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 2111 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-12-02 08:02:02,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 08:02:02,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 333. [2024-12-02 08:02:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 236 states have (on average 1.3983050847457628) internal successors, (330), 236 states have internal predecessors, (330), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:02:02,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 516 transitions. [2024-12-02 08:02:02,201 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 516 transitions. Word has length 199 [2024-12-02 08:02:02,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:02:02,201 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 516 transitions. [2024-12-02 08:02:02,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 08:02:02,201 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 516 transitions. [2024-12-02 08:02:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 08:02:02,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:02:02,202 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:02:02,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:02:02,202 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:02:02,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:02:02,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1694822540, now seen corresponding path program 1 times [2024-12-02 08:02:02,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:02:02,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782561513] [2024-12-02 08:02:02,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:02,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:02:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 08:02:21,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:02:21,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782561513] [2024-12-02 08:02:21,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782561513] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:02:21,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:02:21,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:02:21,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289325171] [2024-12-02 08:02:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:02:21,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:02:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:02:21,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:02:21,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:02:21,250 INFO L87 Difference]: Start difference. First operand 333 states and 516 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:02:44,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:02:44,480 INFO L93 Difference]: Finished difference Result 532 states and 821 transitions. [2024-12-02 08:02:44,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 08:02:44,481 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-12-02 08:02:44,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:02:44,483 INFO L225 Difference]: With dead ends: 532 [2024-12-02 08:02:44,483 INFO L226 Difference]: Without dead ends: 530 [2024-12-02 08:02:44,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=525, Invalid=1367, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 08:02:44,484 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 604 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:02:44,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 2350 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 08:02:44,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-12-02 08:02:44,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 333. [2024-12-02 08:02:44,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 236 states have (on average 1.3983050847457628) internal successors, (330), 236 states have internal predecessors, (330), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:02:44,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 516 transitions. [2024-12-02 08:02:44,498 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 516 transitions. Word has length 200 [2024-12-02 08:02:44,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:02:44,498 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 516 transitions. [2024-12-02 08:02:44,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:02:44,498 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 516 transitions. [2024-12-02 08:02:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 08:02:44,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:02:44,499 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:02:44,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:02:44,499 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:02:44,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:02:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash -299322166, now seen corresponding path program 1 times [2024-12-02 08:02:44,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:02:44,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357275304] [2024-12-02 08:02:44,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:44,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:02:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-12-02 08:02:57,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:02:57,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357275304] [2024-12-02 08:02:57,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357275304] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:02:57,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:02:57,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 08:02:57,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955686647] [2024-12-02 08:02:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:02:57,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 08:02:57,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:02:57,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 08:02:57,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:02:57,966 INFO L87 Difference]: Start difference. First operand 333 states and 516 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:03:13,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:13,633 INFO L93 Difference]: Finished difference Result 467 states and 721 transitions. [2024-12-02 08:03:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 08:03:13,634 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-12-02 08:03:13,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:13,636 INFO L225 Difference]: With dead ends: 467 [2024-12-02 08:03:13,636 INFO L226 Difference]: Without dead ends: 465 [2024-12-02 08:03:13,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=435, Invalid=1047, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 08:03:13,637 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 570 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:13,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1850 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 08:03:13,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-12-02 08:03:13,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 325. [2024-12-02 08:03:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 228 states have (on average 1.3991228070175439) internal successors, (319), 228 states have internal predecessors, (319), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:03:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 505 transitions. [2024-12-02 08:03:13,660 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 505 transitions. Word has length 200 [2024-12-02 08:03:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:13,660 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 505 transitions. [2024-12-02 08:03:13,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:03:13,661 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 505 transitions. [2024-12-02 08:03:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-12-02 08:03:13,663 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:13,664 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:13,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:03:13,664 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:13,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1351539266, now seen corresponding path program 1 times [2024-12-02 08:03:13,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:13,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469113842] [2024-12-02 08:03:13,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:13,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7612 trivial. 0 not checked. [2024-12-02 08:03:25,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:25,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469113842] [2024-12-02 08:03:25,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469113842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:25,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:25,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:03:25,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041207112] [2024-12-02 08:03:25,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:25,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:03:25,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:25,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:03:25,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:03:25,424 INFO L87 Difference]: Start difference. First operand 325 states and 505 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:03:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:27,620 INFO L93 Difference]: Finished difference Result 750 states and 1165 transitions. [2024-12-02 08:03:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:03:27,622 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 389 [2024-12-02 08:03:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:27,624 INFO L225 Difference]: With dead ends: 750 [2024-12-02 08:03:27,624 INFO L226 Difference]: Without dead ends: 559 [2024-12-02 08:03:27,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:03:27,625 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 391 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:27,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1508 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:03:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-12-02 08:03:27,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 340. [2024-12-02 08:03:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 243 states have (on average 1.3991769547325104) internal successors, (340), 243 states have internal predecessors, (340), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:03:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 526 transitions. [2024-12-02 08:03:27,642 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 526 transitions. Word has length 389 [2024-12-02 08:03:27,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:27,643 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 526 transitions. [2024-12-02 08:03:27,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:03:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 526 transitions. [2024-12-02 08:03:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-12-02 08:03:27,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:27,645 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:27,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:03:27,645 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:27,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -928837440, now seen corresponding path program 1 times [2024-12-02 08:03:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109700519] [2024-12-02 08:03:27,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 7572 trivial. 0 not checked. [2024-12-02 08:03:33,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:33,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109700519] [2024-12-02 08:03:33,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109700519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:33,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:33,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:03:33,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242677275] [2024-12-02 08:03:33,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:33,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:03:33,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:33,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:03:33,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:03:33,045 INFO L87 Difference]: Start difference. First operand 340 states and 526 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-12-02 08:03:36,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:36,013 INFO L93 Difference]: Finished difference Result 928 states and 1442 transitions. [2024-12-02 08:03:36,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:03:36,014 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 389 [2024-12-02 08:03:36,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:36,017 INFO L225 Difference]: With dead ends: 928 [2024-12-02 08:03:36,017 INFO L226 Difference]: Without dead ends: 694 [2024-12-02 08:03:36,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:03:36,018 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 1277 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:36,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 1016 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 08:03:36,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-12-02 08:03:36,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 336. [2024-12-02 08:03:36,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 239 states have (on average 1.397489539748954) internal successors, (334), 239 states have internal predecessors, (334), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:03:36,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 520 transitions. [2024-12-02 08:03:36,040 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 520 transitions. Word has length 389 [2024-12-02 08:03:36,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:36,040 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 520 transitions. [2024-12-02 08:03:36,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-12-02 08:03:36,040 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 520 transitions. [2024-12-02 08:03:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:03:36,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:36,042 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:36,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:03:36,042 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:36,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:36,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1881118588, now seen corresponding path program 1 times [2024-12-02 08:03:36,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:36,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073591976] [2024-12-02 08:03:36,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:36,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:03:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7612 trivial. 0 not checked. [2024-12-02 08:03:45,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:03:45,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073591976] [2024-12-02 08:03:45,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073591976] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:03:45,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:03:45,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:03:45,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149604496] [2024-12-02 08:03:45,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:03:45,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:03:45,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:03:45,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:03:45,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:03:45,678 INFO L87 Difference]: Start difference. First operand 336 states and 520 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:03:50,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:03:50,453 INFO L93 Difference]: Finished difference Result 570 states and 876 transitions. [2024-12-02 08:03:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:03:50,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 390 [2024-12-02 08:03:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:03:50,456 INFO L225 Difference]: With dead ends: 570 [2024-12-02 08:03:50,456 INFO L226 Difference]: Without dead ends: 568 [2024-12-02 08:03:50,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:03:50,457 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 416 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:03:50,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 2100 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 08:03:50,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-12-02 08:03:50,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 345. [2024-12-02 08:03:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 248 states have (on average 1.3991935483870968) internal successors, (347), 248 states have internal predecessors, (347), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:03:50,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 533 transitions. [2024-12-02 08:03:50,476 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 533 transitions. Word has length 390 [2024-12-02 08:03:50,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:03:50,477 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 533 transitions. [2024-12-02 08:03:50,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:03:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 533 transitions. [2024-12-02 08:03:50,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:03:50,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:03:50,479 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:03:50,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:03:50,479 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:03:50,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:03:50,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1860993696, now seen corresponding path program 1 times [2024-12-02 08:03:50,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:03:50,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170752351] [2024-12-02 08:03:50,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:03:50,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:03:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:04:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 5 proven. 63 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-12-02 08:04:06,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:04:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170752351] [2024-12-02 08:04:06,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170752351] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:04:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334327576] [2024-12-02 08:04:06,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:04:06,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:04:06,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:04:06,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:04:06,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:04:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:04:06,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:04:06,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:04:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 4005 proven. 231 refuted. 0 times theorem prover too weak. 3396 trivial. 0 not checked. [2024-12-02 08:04:07,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:04:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 171 proven. 72 refuted. 0 times theorem prover too weak. 7389 trivial. 0 not checked. [2024-12-02 08:04:08,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334327576] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:04:08,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:04:08,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 9, 7] total 31 [2024-12-02 08:04:08,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82218443] [2024-12-02 08:04:08,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:04:08,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 08:04:08,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:04:08,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 08:04:08,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:04:08,140 INFO L87 Difference]: Start difference. First operand 345 states and 533 transitions. Second operand has 31 states, 31 states have (on average 6.096774193548387) internal successors, (189), 31 states have internal predecessors, (189), 8 states have call successors, (145), 3 states have call predecessors, (145), 6 states have return successors, (146), 8 states have call predecessors, (146), 8 states have call successors, (146) [2024-12-02 08:04:18,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:04:18,154 INFO L93 Difference]: Finished difference Result 1143 states and 1757 transitions. [2024-12-02 08:04:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 08:04:18,154 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.096774193548387) internal successors, (189), 31 states have internal predecessors, (189), 8 states have call successors, (145), 3 states have call predecessors, (145), 6 states have return successors, (146), 8 states have call predecessors, (146), 8 states have call successors, (146) Word has length 390 [2024-12-02 08:04:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:04:18,157 INFO L225 Difference]: With dead ends: 1143 [2024-12-02 08:04:18,157 INFO L226 Difference]: Without dead ends: 868 [2024-12-02 08:04:18,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 776 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 795 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=535, Invalid=2771, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 08:04:18,159 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 1747 mSDsluCounter, 2937 mSDsCounter, 0 mSdLazyCounter, 2894 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 3197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:04:18,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 3193 Invalid, 3197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2894 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-12-02 08:04:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-12-02 08:04:18,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 346. [2024-12-02 08:04:18,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 246 states have (on average 1.3739837398373984) internal successors, (338), 246 states have internal predecessors, (338), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:04:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 524 transitions. [2024-12-02 08:04:18,196 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 524 transitions. Word has length 390 [2024-12-02 08:04:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:04:18,196 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 524 transitions. [2024-12-02 08:04:18,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.096774193548387) internal successors, (189), 31 states have internal predecessors, (189), 8 states have call successors, (145), 3 states have call predecessors, (145), 6 states have return successors, (146), 8 states have call predecessors, (146), 8 states have call successors, (146) [2024-12-02 08:04:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 524 transitions. [2024-12-02 08:04:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:04:18,198 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:04:18,198 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:04:18,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:04:18,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 08:04:18,399 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:04:18,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:04:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1916622557, now seen corresponding path program 1 times [2024-12-02 08:04:18,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:04:18,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101472625] [2024-12-02 08:04:18,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:04:18,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:04:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:04:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 42 proven. 19 refuted. 0 times theorem prover too weak. 7571 trivial. 0 not checked. [2024-12-02 08:04:34,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:04:34,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101472625] [2024-12-02 08:04:34,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101472625] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:04:34,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273150349] [2024-12-02 08:04:34,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:04:34,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:04:34,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:04:34,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:04:34,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:04:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:04:34,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:04:34,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:04:35,771 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 3940 proven. 174 refuted. 0 times theorem prover too weak. 3518 trivial. 0 not checked. [2024-12-02 08:04:35,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:04:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 158 proven. 90 refuted. 0 times theorem prover too weak. 7384 trivial. 0 not checked. [2024-12-02 08:04:36,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273150349] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:04:36,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:04:36,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 6] total 27 [2024-12-02 08:04:36,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607873165] [2024-12-02 08:04:36,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:04:36,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 08:04:36,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:04:36,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 08:04:36,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2024-12-02 08:04:36,467 INFO L87 Difference]: Start difference. First operand 346 states and 524 transitions. Second operand has 27 states, 27 states have (on average 6.2592592592592595) internal successors, (169), 27 states have internal predecessors, (169), 5 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (120), 5 states have call predecessors, (120), 5 states have call successors, (120) [2024-12-02 08:04:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:04:42,673 INFO L93 Difference]: Finished difference Result 1131 states and 1669 transitions. [2024-12-02 08:04:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-12-02 08:04:42,673 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.2592592592592595) internal successors, (169), 27 states have internal predecessors, (169), 5 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (120), 5 states have call predecessors, (120), 5 states have call successors, (120) Word has length 390 [2024-12-02 08:04:42,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:04:42,680 INFO L225 Difference]: With dead ends: 1131 [2024-12-02 08:04:42,680 INFO L226 Difference]: Without dead ends: 850 [2024-12-02 08:04:42,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 778 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2969 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=1513, Invalid=8189, Unknown=0, NotChecked=0, Total=9702 [2024-12-02 08:04:42,687 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 1963 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 2826 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 3253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:04:42,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 2811 Invalid, 3253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2826 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 08:04:42,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-12-02 08:04:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 369. [2024-12-02 08:04:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 263 states have (on average 1.3307984790874525) internal successors, (350), 263 states have internal predecessors, (350), 93 states have call successors, (93), 12 states have call predecessors, (93), 12 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:04:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 536 transitions. [2024-12-02 08:04:42,725 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 536 transitions. Word has length 390 [2024-12-02 08:04:42,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:04:42,725 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 536 transitions. [2024-12-02 08:04:42,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.2592592592592595) internal successors, (169), 27 states have internal predecessors, (169), 5 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (120), 5 states have call predecessors, (120), 5 states have call successors, (120) [2024-12-02 08:04:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 536 transitions. [2024-12-02 08:04:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:04:42,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:04:42,727 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:04:42,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:04:42,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:04:42,927 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:04:42,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:04:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1397193397, now seen corresponding path program 1 times [2024-12-02 08:04:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:04:42,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347935889] [2024-12-02 08:04:42,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:04:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:04:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:04:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7612 trivial. 0 not checked. [2024-12-02 08:04:52,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:04:52,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347935889] [2024-12-02 08:04:52,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347935889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:04:52,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:04:52,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:04:52,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356311236] [2024-12-02 08:04:52,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:04:52,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:04:52,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:04:52,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:04:52,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:04:52,224 INFO L87 Difference]: Start difference. First operand 369 states and 536 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:04:57,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:04:57,145 INFO L93 Difference]: Finished difference Result 600 states and 880 transitions. [2024-12-02 08:04:57,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:04:57,146 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 390 [2024-12-02 08:04:57,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:04:57,148 INFO L225 Difference]: With dead ends: 600 [2024-12-02 08:04:57,148 INFO L226 Difference]: Without dead ends: 598 [2024-12-02 08:04:57,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:04:57,148 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 448 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:04:57,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 2141 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 08:04:57,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-12-02 08:04:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 372. [2024-12-02 08:04:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 266 states have (on average 1.3383458646616542) internal successors, (356), 266 states have internal predecessors, (356), 93 states have call successors, (93), 12 states have call predecessors, (93), 12 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:04:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 542 transitions. [2024-12-02 08:04:57,197 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 542 transitions. Word has length 390 [2024-12-02 08:04:57,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:04:57,198 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 542 transitions. [2024-12-02 08:04:57,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:04:57,198 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 542 transitions. [2024-12-02 08:04:57,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:04:57,199 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:04:57,199 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:04:57,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:04:57,200 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:04:57,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:04:57,200 INFO L85 PathProgramCache]: Analyzing trace with hash -291750345, now seen corresponding path program 1 times [2024-12-02 08:04:57,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:04:57,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993933908] [2024-12-02 08:04:57,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:04:57,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:04:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:04:57,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-12-02 08:04:57,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:04:57,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993933908] [2024-12-02 08:04:57,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993933908] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:04:57,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:04:57,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:04:57,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480677453] [2024-12-02 08:04:57,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:04:57,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:04:57,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:04:57,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:04:57,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:04:57,750 INFO L87 Difference]: Start difference. First operand 372 states and 542 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-12-02 08:04:58,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:04:58,011 INFO L93 Difference]: Finished difference Result 1035 states and 1520 transitions. [2024-12-02 08:04:58,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:04:58,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 390 [2024-12-02 08:04:58,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:04:58,014 INFO L225 Difference]: With dead ends: 1035 [2024-12-02 08:04:58,014 INFO L226 Difference]: Without dead ends: 771 [2024-12-02 08:04:58,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:04:58,015 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 357 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:04:58,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 935 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:04:58,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-12-02 08:04:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 523. [2024-12-02 08:04:58,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 382 states have (on average 1.350785340314136) internal successors, (516), 382 states have internal predecessors, (516), 124 states have call successors, (124), 16 states have call predecessors, (124), 16 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 08:04:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 764 transitions. [2024-12-02 08:04:58,074 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 764 transitions. Word has length 390 [2024-12-02 08:04:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:04:58,074 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 764 transitions. [2024-12-02 08:04:58,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-12-02 08:04:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 764 transitions. [2024-12-02 08:04:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:04:58,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:04:58,076 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:04:58,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 08:04:58,077 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:04:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:04:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2099973306, now seen corresponding path program 1 times [2024-12-02 08:04:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:04:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206974652] [2024-12-02 08:04:58,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:04:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:04:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7612 trivial. 0 not checked. [2024-12-02 08:05:04,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:04,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206974652] [2024-12-02 08:05:04,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206974652] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:04,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:04,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:05:04,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637523951] [2024-12-02 08:05:04,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:04,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:05:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:04,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:05:04,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:05:04,674 INFO L87 Difference]: Start difference. First operand 523 states and 764 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:05:07,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:07,319 INFO L93 Difference]: Finished difference Result 746 states and 1098 transitions. [2024-12-02 08:05:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:05:07,319 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 390 [2024-12-02 08:05:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:07,322 INFO L225 Difference]: With dead ends: 746 [2024-12-02 08:05:07,322 INFO L226 Difference]: Without dead ends: 744 [2024-12-02 08:05:07,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:05:07,322 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 340 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:07,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1394 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:05:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-12-02 08:05:07,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 522. [2024-12-02 08:05:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 381 states have (on average 1.3517060367454068) internal successors, (515), 381 states have internal predecessors, (515), 124 states have call successors, (124), 16 states have call predecessors, (124), 16 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 08:05:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 763 transitions. [2024-12-02 08:05:07,372 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 763 transitions. Word has length 390 [2024-12-02 08:05:07,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:07,372 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 763 transitions. [2024-12-02 08:05:07,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:05:07,372 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 763 transitions. [2024-12-02 08:05:07,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:05:07,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:07,374 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:07,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 08:05:07,374 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:07,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:07,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1616048115, now seen corresponding path program 1 times [2024-12-02 08:05:07,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:07,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180764879] [2024-12-02 08:05:07,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:07,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7612 trivial. 0 not checked. [2024-12-02 08:05:14,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180764879] [2024-12-02 08:05:14,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180764879] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:14,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:14,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:05:14,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458332171] [2024-12-02 08:05:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:14,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:05:14,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:14,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:05:14,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:05:14,132 INFO L87 Difference]: Start difference. First operand 522 states and 763 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:05:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:16,601 INFO L93 Difference]: Finished difference Result 849 states and 1256 transitions. [2024-12-02 08:05:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:05:16,602 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 390 [2024-12-02 08:05:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:16,604 INFO L225 Difference]: With dead ends: 849 [2024-12-02 08:05:16,604 INFO L226 Difference]: Without dead ends: 847 [2024-12-02 08:05:16,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:05:16,605 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 505 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:16,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1717 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 08:05:16,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-12-02 08:05:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 505. [2024-12-02 08:05:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 364 states have (on average 1.3461538461538463) internal successors, (490), 364 states have internal predecessors, (490), 124 states have call successors, (124), 16 states have call predecessors, (124), 16 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 08:05:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 738 transitions. [2024-12-02 08:05:16,699 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 738 transitions. Word has length 390 [2024-12-02 08:05:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:16,699 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 738 transitions. [2024-12-02 08:05:16,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:05:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 738 transitions. [2024-12-02 08:05:16,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 08:05:16,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:16,702 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:16,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 08:05:16,702 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:16,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:16,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1192485221, now seen corresponding path program 1 times [2024-12-02 08:05:16,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:16,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185121154] [2024-12-02 08:05:16,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:16,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7612 trivial. 0 not checked. [2024-12-02 08:05:27,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:27,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185121154] [2024-12-02 08:05:27,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185121154] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:27,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:27,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:05:27,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175272173] [2024-12-02 08:05:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:27,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:05:27,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:27,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:05:27,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:05:27,290 INFO L87 Difference]: Start difference. First operand 505 states and 738 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:05:32,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:32,081 INFO L93 Difference]: Finished difference Result 847 states and 1253 transitions. [2024-12-02 08:05:32,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:05:32,082 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 391 [2024-12-02 08:05:32,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:32,084 INFO L225 Difference]: With dead ends: 847 [2024-12-02 08:05:32,084 INFO L226 Difference]: Without dead ends: 845 [2024-12-02 08:05:32,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:05:32,085 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 418 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:32,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 2467 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:05:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-12-02 08:05:32,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 523. [2024-12-02 08:05:32,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 382 states have (on average 1.350785340314136) internal successors, (516), 382 states have internal predecessors, (516), 124 states have call successors, (124), 16 states have call predecessors, (124), 16 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-12-02 08:05:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 764 transitions. [2024-12-02 08:05:32,147 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 764 transitions. Word has length 391 [2024-12-02 08:05:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:32,148 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 764 transitions. [2024-12-02 08:05:32,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:05:32,148 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 764 transitions. [2024-12-02 08:05:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 08:05:32,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:32,151 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:32,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:05:32,151 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:32,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1689711372, now seen corresponding path program 1 times [2024-12-02 08:05:32,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:32,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32810457] [2024-12-02 08:05:32,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:32,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 49 proven. 19 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-12-02 08:05:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32810457] [2024-12-02 08:05:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32810457] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:05:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535493123] [2024-12-02 08:05:49,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:49,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:05:49,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:05:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:49,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:05:49,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:52,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 4636 proven. 436 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-12-02 08:05:52,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:05:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 287 proven. 141 refuted. 0 times theorem prover too weak. 7204 trivial. 0 not checked. [2024-12-02 08:05:53,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535493123] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:05:53,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:05:53,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 9] total 36 [2024-12-02 08:05:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983054964] [2024-12-02 08:05:53,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:05:53,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 08:05:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:53,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 08:05:53,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1093, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:05:53,545 INFO L87 Difference]: Start difference. First operand 523 states and 764 transitions. Second operand has 36 states, 36 states have (on average 6.222222222222222) internal successors, (224), 36 states have internal predecessors, (224), 8 states have call successors, (153), 5 states have call predecessors, (153), 9 states have return successors, (155), 7 states have call predecessors, (155), 8 states have call successors, (155) [2024-12-02 08:06:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:03,160 INFO L93 Difference]: Finished difference Result 2336 states and 3420 transitions. [2024-12-02 08:06:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-12-02 08:06:03,161 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 6.222222222222222) internal successors, (224), 36 states have internal predecessors, (224), 8 states have call successors, (153), 5 states have call predecessors, (153), 9 states have return successors, (155), 7 states have call predecessors, (155), 8 states have call successors, (155) Word has length 391 [2024-12-02 08:06:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:03,165 INFO L225 Difference]: With dead ends: 2336 [2024-12-02 08:06:03,165 INFO L226 Difference]: Without dead ends: 1921 [2024-12-02 08:06:03,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6751 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2862, Invalid=16598, Unknown=0, NotChecked=0, Total=19460 [2024-12-02 08:06:03,169 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 3522 mSDsluCounter, 6000 mSDsCounter, 0 mSdLazyCounter, 5098 mSolverCounterSat, 754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 5852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 754 IncrementalHoareTripleChecker+Valid, 5098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:03,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 6503 Invalid, 5852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [754 Valid, 5098 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-12-02 08:06:03,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2024-12-02 08:06:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 375. [2024-12-02 08:06:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 266 states have (on average 1.3195488721804511) internal successors, (351), 266 states have internal predecessors, (351), 93 states have call successors, (93), 15 states have call predecessors, (93), 15 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-12-02 08:06:03,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 537 transitions. [2024-12-02 08:06:03,221 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 537 transitions. Word has length 391 [2024-12-02 08:06:03,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:03,222 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 537 transitions. [2024-12-02 08:06:03,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.222222222222222) internal successors, (224), 36 states have internal predecessors, (224), 8 states have call successors, (153), 5 states have call predecessors, (153), 9 states have return successors, (155), 7 states have call predecessors, (155), 8 states have call successors, (155) [2024-12-02 08:06:03,222 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 537 transitions. [2024-12-02 08:06:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 08:06:03,223 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:03,223 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:06:03,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 08:06:03,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 08:06:03,424 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:03,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:03,424 INFO L85 PathProgramCache]: Analyzing trace with hash -612953113, now seen corresponding path program 1 times [2024-12-02 08:06:03,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:03,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734445939] [2024-12-02 08:06:03,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 7632 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 7572 trivial. 0 not checked. [2024-12-02 08:06:10,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:10,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734445939] [2024-12-02 08:06:10,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734445939] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:10,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:10,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 08:06:10,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899566780] [2024-12-02 08:06:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:10,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:06:10,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:06:10,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:06:10,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:06:10,694 INFO L87 Difference]: Start difference. First operand 375 states and 537 transitions. Second operand has 17 states, 17 states have (on average 4.764705882352941) internal successors, (81), 17 states have internal predecessors, (81), 3 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-12-02 08:06:15,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:15,889 INFO L93 Difference]: Finished difference Result 488 states and 703 transitions. [2024-12-02 08:06:15,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:06:15,890 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.764705882352941) internal successors, (81), 17 states have internal predecessors, (81), 3 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 391 [2024-12-02 08:06:15,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:15,891 INFO L225 Difference]: With dead ends: 488 [2024-12-02 08:06:15,891 INFO L226 Difference]: Without dead ends: 268 [2024-12-02 08:06:15,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=203, Invalid=667, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:06:15,892 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 506 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:15,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 2314 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 08:06:15,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-12-02 08:06:15,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 224. [2024-12-02 08:06:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 151 states have (on average 1.2649006622516556) internal successors, (191), 151 states have internal predecessors, (191), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 08:06:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 315 transitions. [2024-12-02 08:06:15,932 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 315 transitions. Word has length 391 [2024-12-02 08:06:15,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:15,932 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 315 transitions. [2024-12-02 08:06:15,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.764705882352941) internal successors, (81), 17 states have internal predecessors, (81), 3 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-12-02 08:06:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 315 transitions. [2024-12-02 08:06:15,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 08:06:15,934 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:15,935 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:06:15,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 08:06:15,935 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:15,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1312504770, now seen corresponding path program 1 times [2024-12-02 08:06:15,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:15,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112925597] [2024-12-02 08:06:15,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 7634 backedges. 49 proven. 21 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-12-02 08:06:34,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:34,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112925597] [2024-12-02 08:06:34,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112925597] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:06:34,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224870839] [2024-12-02 08:06:34,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:34,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:06:34,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:06:34,500 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:06:34,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5432019a-3936-41b1-9bc0-c6368757be0f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:06:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:35,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-12-02 08:06:35,144 INFO L279 TraceCheckSpWp]: Computing forward predicates...