./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.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_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/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_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/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_b41dcfed-843d-4c01-87d1-27638b204fc0/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 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:22:50,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:22:50,539 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:22:50,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:22:50,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:22:50,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:22:50,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:22:50,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:22:50,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:22:50,567 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:22:50,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:22:50,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:22:50,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:22:50,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:22:50,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:22:50,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:22:50,569 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:22:50,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:22:50,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:22:50,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:22:50,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:22:50,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:22:50,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:22:50,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:22:50,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:22:50,571 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_b41dcfed-843d-4c01-87d1-27638b204fc0/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 -> 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 [2024-12-02 14:22:50,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:22:50,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:22:50,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:22:50,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:22:50,791 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:22:50,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-12-02 14:22:53,461 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/data/97d275ed8/8bd433ec14884eb49f9a36194df94afc/FLAG195150f27 [2024-12-02 14:22:53,727 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:22:53,728 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-12-02 14:22:53,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/data/97d275ed8/8bd433ec14884eb49f9a36194df94afc/FLAG195150f27 [2024-12-02 14:22:53,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/data/97d275ed8/8bd433ec14884eb49f9a36194df94afc [2024-12-02 14:22:53,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:22:53,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:22:53,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:22:53,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:22:53,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:22:53,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:53" (1/1) ... [2024-12-02 14:22:53,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4901181e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:53, skipping insertion in model container [2024-12-02 14:22:53,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:53" (1/1) ... [2024-12-02 14:22:53,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:22:53,938 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_b41dcfed-843d-4c01-87d1-27638b204fc0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2024-12-02 14:22:54,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:22:54,109 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:22:54,120 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_b41dcfed-843d-4c01-87d1-27638b204fc0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2024-12-02 14:22:54,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:22:54,223 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:22:54,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54 WrapperNode [2024-12-02 14:22:54,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:22:54,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:22:54,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:22:54,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:22:54,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,330 INFO L138 Inliner]: procedures = 26, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 862 [2024-12-02 14:22:54,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:22:54,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:22:54,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:22:54,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:22:54,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,354 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,410 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 14:22:54,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,437 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:22:54,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:22:54,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:22:54,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:22:54,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (1/1) ... [2024-12-02 14:22:54,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:22:54,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:22:54,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:22:54,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:22:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:22:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:22:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:22:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:22:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:22:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:22:54,670 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:22:54,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:22:56,113 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-12-02 14:22:56,114 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:22:56,132 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:22:56,133 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:22:56,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:56 BoogieIcfgContainer [2024-12-02 14:22:56,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:22:56,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:22:56,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:22:56,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:22:56,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:22:53" (1/3) ... [2024-12-02 14:22:56,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5098b189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:56, skipping insertion in model container [2024-12-02 14:22:56,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:54" (2/3) ... [2024-12-02 14:22:56,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5098b189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:56, skipping insertion in model container [2024-12-02 14:22:56,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:56" (3/3) ... [2024-12-02 14:22:56,144 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2024-12-02 14:22:56,160 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:22:56,163 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-78.i that has 2 procedures, 350 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:22:56,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:22:56,244 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;@402803f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:22:56,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:22:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 253 states have (on average 1.592885375494071) internal successors, (403), 254 states have internal predecessors, (403), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 14:22:56,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-12-02 14:22:56,284 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:56,285 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:56,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:56,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:56,291 INFO L85 PathProgramCache]: Analyzing trace with hash 45808961, now seen corresponding path program 1 times [2024-12-02 14:22:56,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:56,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583520315] [2024-12-02 14:22:56,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:56,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2024-12-02 14:22:56,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583520315] [2024-12-02 14:22:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583520315] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:22:56,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241326423] [2024-12-02 14:22:56,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:56,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:22:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:22:56,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:22:56,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:22:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:57,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:22:57,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:22:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2024-12-02 14:22:57,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:22:57,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241326423] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:57,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:22:57,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:22:57,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761912490] [2024-12-02 14:22:57,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:57,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:22:57,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:57,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:22:57,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:22:57,581 INFO L87 Difference]: Start difference. First operand has 350 states, 253 states have (on average 1.592885375494071) internal successors, (403), 254 states have internal predecessors, (403), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2024-12-02 14:22:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:57,632 INFO L93 Difference]: Finished difference Result 685 states and 1256 transitions. [2024-12-02 14:22:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:22:57,634 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2024-12-02 14:22:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:57,643 INFO L225 Difference]: With dead ends: 685 [2024-12-02 14:22:57,643 INFO L226 Difference]: Without dead ends: 338 [2024-12-02 14:22:57,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 623 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 14:22:57,651 INFO L435 NwaCegarLoop]: 569 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, 569 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 14:22:57,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:22:57,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-12-02 14:22:57,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-12-02 14:22:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 242 states have internal predecessors, (381), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 14:22:57,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 569 transitions. [2024-12-02 14:22:57,725 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 569 transitions. Word has length 622 [2024-12-02 14:22:57,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:57,725 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 569 transitions. [2024-12-02 14:22:57,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2024-12-02 14:22:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 569 transitions. [2024-12-02 14:22:57,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-12-02 14:22:57,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:57,743 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:57,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:22:57,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:22:57,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:57,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:57,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1804090051, now seen corresponding path program 1 times [2024-12-02 14:22:57,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:57,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477892792] [2024-12-02 14:22:57,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:22:58,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:58,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477892792] [2024-12-02 14:22:58,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477892792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:58,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:58,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:22:58,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645533559] [2024-12-02 14:22:58,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:58,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:22:58,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:58,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:22:58,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:22:58,740 INFO L87 Difference]: Start difference. First operand 338 states and 569 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:22:58,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:22:58,864 INFO L93 Difference]: Finished difference Result 895 states and 1514 transitions. [2024-12-02 14:22:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:22:58,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-12-02 14:22:58,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:22:58,872 INFO L225 Difference]: With dead ends: 895 [2024-12-02 14:22:58,872 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 14:22:58,874 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 14:22:58,874 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 363 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:22:58,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1109 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:22:58,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 14:22:58,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2024-12-02 14:22:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 428 states have (on average 1.5981308411214954) internal successors, (684), 429 states have internal predecessors, (684), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 14:22:58,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 936 transitions. [2024-12-02 14:22:58,929 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 936 transitions. Word has length 622 [2024-12-02 14:22:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:22:58,931 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 936 transitions. [2024-12-02 14:22:58,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:22:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 936 transitions. [2024-12-02 14:22:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-12-02 14:22:58,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:22:58,937 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:58,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:22:58,938 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:22:58,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:22:58,938 INFO L85 PathProgramCache]: Analyzing trace with hash 656735485, now seen corresponding path program 1 times [2024-12-02 14:22:58,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:22:58,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727772589] [2024-12-02 14:22:58,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:22:58,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:22:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:22:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:22:59,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:22:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727772589] [2024-12-02 14:22:59,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727772589] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:22:59,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:22:59,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:22:59,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671919818] [2024-12-02 14:22:59,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:22:59,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:22:59,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:22:59,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:22:59,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:22:59,703 INFO L87 Difference]: Start difference. First operand 557 states and 936 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-12-02 14:23:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:00,022 INFO L93 Difference]: Finished difference Result 1484 states and 2488 transitions. [2024-12-02 14:23:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:23:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2024-12-02 14:23:00,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:00,031 INFO L225 Difference]: With dead ends: 1484 [2024-12-02 14:23:00,031 INFO L226 Difference]: Without dead ends: 930 [2024-12-02 14:23:00,033 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 14:23:00,034 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 801 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:00,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1101 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:23:00,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-12-02 14:23:00,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 928. [2024-12-02 14:23:00,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 703 states have (on average 1.5817923186344238) internal successors, (1112), 704 states have internal predecessors, (1112), 220 states have call successors, (220), 4 states have call predecessors, (220), 4 states have return successors, (220), 219 states have call predecessors, (220), 220 states have call successors, (220) [2024-12-02 14:23:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1552 transitions. [2024-12-02 14:23:00,122 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1552 transitions. Word has length 622 [2024-12-02 14:23:00,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:00,124 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1552 transitions. [2024-12-02 14:23:00,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-12-02 14:23:00,124 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1552 transitions. [2024-12-02 14:23:00,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-12-02 14:23:00,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:00,130 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:00,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:23:00,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:00,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:00,132 INFO L85 PathProgramCache]: Analyzing trace with hash 602342587, now seen corresponding path program 1 times [2024-12-02 14:23:00,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:00,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363751328] [2024-12-02 14:23:00,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:00,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:00,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:00,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363751328] [2024-12-02 14:23:00,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363751328] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:00,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:00,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:23:00,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100161924] [2024-12-02 14:23:00,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:00,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:23:00,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:00,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:23:00,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:23:00,799 INFO L87 Difference]: Start difference. First operand 928 states and 1552 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:02,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:02,614 INFO L93 Difference]: Finished difference Result 5209 states and 8685 transitions. [2024-12-02 14:23:02,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:23:02,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-12-02 14:23:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:02,634 INFO L225 Difference]: With dead ends: 5209 [2024-12-02 14:23:02,634 INFO L226 Difference]: Without dead ends: 4284 [2024-12-02 14:23:02,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:23:02,638 INFO L435 NwaCegarLoop]: 993 mSDtfsCounter, 2158 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2158 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:02,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2158 Valid, 3514 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 14:23:02,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2024-12-02 14:23:02,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 2437. [2024-12-02 14:23:02,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 1822 states have (on average 1.5697036223929748) internal successors, (2860), 1827 states have internal predecessors, (2860), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-12-02 14:23:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4064 transitions. [2024-12-02 14:23:02,936 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4064 transitions. Word has length 622 [2024-12-02 14:23:02,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:02,937 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 4064 transitions. [2024-12-02 14:23:02,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:02,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4064 transitions. [2024-12-02 14:23:02,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-12-02 14:23:02,946 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:02,946 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:02,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:23:02,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:02,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash 207975801, now seen corresponding path program 1 times [2024-12-02 14:23:02,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:02,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927985318] [2024-12-02 14:23:02,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:02,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:03,750 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:03,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:03,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927985318] [2024-12-02 14:23:03,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927985318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:03,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:03,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:23:03,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836900143] [2024-12-02 14:23:03,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:03,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:23:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:03,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:23:03,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:23:03,752 INFO L87 Difference]: Start difference. First operand 2437 states and 4064 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:03,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:03,946 INFO L93 Difference]: Finished difference Result 5180 states and 8604 transitions. [2024-12-02 14:23:03,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:23:03,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-12-02 14:23:03,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:03,959 INFO L225 Difference]: With dead ends: 5180 [2024-12-02 14:23:03,959 INFO L226 Difference]: Without dead ends: 2746 [2024-12-02 14:23:03,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:23:03,964 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 45 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:03,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2810 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:23:03,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-12-02 14:23:04,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2599. [2024-12-02 14:23:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1984 states have (on average 1.5730846774193548) internal successors, (3121), 1989 states have internal predecessors, (3121), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-12-02 14:23:04,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 4325 transitions. [2024-12-02 14:23:04,149 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 4325 transitions. Word has length 622 [2024-12-02 14:23:04,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:04,150 INFO L471 AbstractCegarLoop]: Abstraction has 2599 states and 4325 transitions. [2024-12-02 14:23:04,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:04,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 4325 transitions. [2024-12-02 14:23:04,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-12-02 14:23:04,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:04,154 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:04,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:23:04,154 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:04,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:04,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2092846789, now seen corresponding path program 1 times [2024-12-02 14:23:04,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:04,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134524775] [2024-12-02 14:23:04,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:04,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:04,447 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:04,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:04,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134524775] [2024-12-02 14:23:04,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134524775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:04,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:04,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:23:04,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965643451] [2024-12-02 14:23:04,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:04,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:23:04,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:04,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:23:04,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:23:04,450 INFO L87 Difference]: Start difference. First operand 2599 states and 4325 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:04,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:04,574 INFO L93 Difference]: Finished difference Result 5195 states and 8647 transitions. [2024-12-02 14:23:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:23:04,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2024-12-02 14:23:04,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:04,587 INFO L225 Difference]: With dead ends: 5195 [2024-12-02 14:23:04,587 INFO L226 Difference]: Without dead ends: 2599 [2024-12-02 14:23:04,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:23:04,593 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 0 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:04,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1690 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:23:04,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-12-02 14:23:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2599. [2024-12-02 14:23:04,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1984 states have (on average 1.5640120967741935) internal successors, (3103), 1989 states have internal predecessors, (3103), 602 states have call successors, (602), 12 states have call predecessors, (602), 12 states have return successors, (602), 597 states have call predecessors, (602), 602 states have call successors, (602) [2024-12-02 14:23:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 4307 transitions. [2024-12-02 14:23:04,800 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 4307 transitions. Word has length 622 [2024-12-02 14:23:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:04,801 INFO L471 AbstractCegarLoop]: Abstraction has 2599 states and 4307 transitions. [2024-12-02 14:23:04,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 4307 transitions. [2024-12-02 14:23:04,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-12-02 14:23:04,805 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:04,805 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:04,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:23:04,805 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:04,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:04,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1040344240, now seen corresponding path program 1 times [2024-12-02 14:23:04,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:04,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165682032] [2024-12-02 14:23:04,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:04,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:05,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:05,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165682032] [2024-12-02 14:23:05,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165682032] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:05,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:05,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:23:05,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818835234] [2024-12-02 14:23:05,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:05,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:23:05,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:05,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:23:05,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:23:05,233 INFO L87 Difference]: Start difference. First operand 2599 states and 4307 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:05,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:05,413 INFO L93 Difference]: Finished difference Result 7791 states and 12915 transitions. [2024-12-02 14:23:05,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:23:05,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2024-12-02 14:23:05,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:05,432 INFO L225 Difference]: With dead ends: 7791 [2024-12-02 14:23:05,432 INFO L226 Difference]: Without dead ends: 5195 [2024-12-02 14:23:05,440 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 14:23:05,441 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 368 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:05,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:23:05,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2024-12-02 14:23:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 5193. [2024-12-02 14:23:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 3964 states have (on average 1.562310797174571) internal successors, (6193), 3974 states have internal predecessors, (6193), 1204 states have call successors, (1204), 24 states have call predecessors, (1204), 24 states have return successors, (1204), 1194 states have call predecessors, (1204), 1204 states have call successors, (1204) [2024-12-02 14:23:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 8601 transitions. [2024-12-02 14:23:05,930 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 8601 transitions. Word has length 623 [2024-12-02 14:23:05,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:05,932 INFO L471 AbstractCegarLoop]: Abstraction has 5193 states and 8601 transitions. [2024-12-02 14:23:05,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:05,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 8601 transitions. [2024-12-02 14:23:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-12-02 14:23:05,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:05,940 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:05,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:23:05,940 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:05,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:05,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1024825522, now seen corresponding path program 1 times [2024-12-02 14:23:05,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:05,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498775438] [2024-12-02 14:23:05,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:05,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:06,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498775438] [2024-12-02 14:23:06,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498775438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:06,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:06,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:23:06,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067806728] [2024-12-02 14:23:06,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:06,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:23:06,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:06,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:23:06,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:23:06,557 INFO L87 Difference]: Start difference. First operand 5193 states and 8601 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:07,260 INFO L93 Difference]: Finished difference Result 12998 states and 21607 transitions. [2024-12-02 14:23:07,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:23:07,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2024-12-02 14:23:07,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:07,303 INFO L225 Difference]: With dead ends: 12998 [2024-12-02 14:23:07,303 INFO L226 Difference]: Without dead ends: 7808 [2024-12-02 14:23:07,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:23:07,319 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 580 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:07,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1661 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:23:07,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2024-12-02 14:23:08,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 7536. [2024-12-02 14:23:08,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 6211 states have (on average 1.6068265979713412) internal successors, (9980), 6221 states have internal predecessors, (9980), 1298 states have call successors, (1298), 26 states have call predecessors, (1298), 26 states have return successors, (1298), 1288 states have call predecessors, (1298), 1298 states have call successors, (1298) [2024-12-02 14:23:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 12576 transitions. [2024-12-02 14:23:08,085 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 12576 transitions. Word has length 623 [2024-12-02 14:23:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:08,086 INFO L471 AbstractCegarLoop]: Abstraction has 7536 states and 12576 transitions. [2024-12-02 14:23:08,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 12576 transitions. [2024-12-02 14:23:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-12-02 14:23:08,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:08,096 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:08,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:23:08,096 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:08,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1323127035, now seen corresponding path program 1 times [2024-12-02 14:23:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:08,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475385097] [2024-12-02 14:23:08,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:08,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:08,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:08,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475385097] [2024-12-02 14:23:08,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475385097] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:08,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:08,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:23:08,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805074846] [2024-12-02 14:23:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:08,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:23:08,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:08,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:23:08,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:23:08,707 INFO L87 Difference]: Start difference. First operand 7536 states and 12576 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:09,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:09,566 INFO L93 Difference]: Finished difference Result 18890 states and 31177 transitions. [2024-12-02 14:23:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:23:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 624 [2024-12-02 14:23:09,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:09,624 INFO L225 Difference]: With dead ends: 18890 [2024-12-02 14:23:09,624 INFO L226 Difference]: Without dead ends: 13178 [2024-12-02 14:23:09,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:23:09,642 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 618 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:09,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1688 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 14:23:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13178 states. [2024-12-02 14:23:10,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13178 to 12922. [2024-12-02 14:23:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12922 states, 10369 states have (on average 1.5749831227697946) internal successors, (16331), 10389 states have internal predecessors, (16331), 2502 states have call successors, (2502), 50 states have call predecessors, (2502), 50 states have return successors, (2502), 2482 states have call predecessors, (2502), 2502 states have call successors, (2502) [2024-12-02 14:23:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12922 states to 12922 states and 21335 transitions. [2024-12-02 14:23:10,786 INFO L78 Accepts]: Start accepts. Automaton has 12922 states and 21335 transitions. Word has length 624 [2024-12-02 14:23:10,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:10,787 INFO L471 AbstractCegarLoop]: Abstraction has 12922 states and 21335 transitions. [2024-12-02 14:23:10,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 12922 states and 21335 transitions. [2024-12-02 14:23:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-12-02 14:23:10,801 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:10,802 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:10,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:23:10,802 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:10,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:10,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1785606739, now seen corresponding path program 1 times [2024-12-02 14:23:10,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:10,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414385647] [2024-12-02 14:23:10,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:10,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:11,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:11,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414385647] [2024-12-02 14:23:11,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414385647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:11,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:11,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:23:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651922938] [2024-12-02 14:23:11,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:11,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:23:11,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:11,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:23:11,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:23:11,685 INFO L87 Difference]: Start difference. First operand 12922 states and 21335 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:13,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:13,142 INFO L93 Difference]: Finished difference Result 35806 states and 58607 transitions. [2024-12-02 14:23:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 14:23:13,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 625 [2024-12-02 14:23:13,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:13,235 INFO L225 Difference]: With dead ends: 35806 [2024-12-02 14:23:13,235 INFO L226 Difference]: Without dead ends: 25104 [2024-12-02 14:23:13,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:23:13,264 INFO L435 NwaCegarLoop]: 1075 mSDtfsCounter, 1220 mSDsluCounter, 3825 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 4900 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:13,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 4900 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:23:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25104 states. [2024-12-02 14:23:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25104 to 24018. [2024-12-02 14:23:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24018 states, 19009 states have (on average 1.5604713556736283) internal successors, (29663), 19049 states have internal predecessors, (29663), 4910 states have call successors, (4910), 98 states have call predecessors, (4910), 98 states have return successors, (4910), 4870 states have call predecessors, (4910), 4910 states have call successors, (4910) [2024-12-02 14:23:14,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24018 states to 24018 states and 39483 transitions. [2024-12-02 14:23:14,973 INFO L78 Accepts]: Start accepts. Automaton has 24018 states and 39483 transitions. Word has length 625 [2024-12-02 14:23:14,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:14,973 INFO L471 AbstractCegarLoop]: Abstraction has 24018 states and 39483 transitions. [2024-12-02 14:23:14,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 24018 states and 39483 transitions. [2024-12-02 14:23:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-12-02 14:23:14,979 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:14,979 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:14,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:23:14,980 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:14,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:14,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2116333547, now seen corresponding path program 1 times [2024-12-02 14:23:14,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:14,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017578273] [2024-12-02 14:23:14,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:14,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:15,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:15,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017578273] [2024-12-02 14:23:15,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017578273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:15,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:15,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:23:15,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812457472] [2024-12-02 14:23:15,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:15,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:23:15,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:15,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:23:15,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:23:15,830 INFO L87 Difference]: Start difference. First operand 24018 states and 39483 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:17,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:17,007 INFO L93 Difference]: Finished difference Result 47294 states and 77257 transitions. [2024-12-02 14:23:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:23:17,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 625 [2024-12-02 14:23:17,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:17,062 INFO L225 Difference]: With dead ends: 47294 [2024-12-02 14:23:17,062 INFO L226 Difference]: Without dead ends: 25100 [2024-12-02 14:23:17,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:23:17,107 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 572 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:17,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1661 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:23:17,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25100 states. [2024-12-02 14:23:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25100 to 24162. [2024-12-02 14:23:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24162 states, 19153 states have (on average 1.5543779042447659) internal successors, (29771), 19193 states have internal predecessors, (29771), 4910 states have call successors, (4910), 98 states have call predecessors, (4910), 98 states have return successors, (4910), 4870 states have call predecessors, (4910), 4910 states have call successors, (4910) [2024-12-02 14:23:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24162 states to 24162 states and 39591 transitions. [2024-12-02 14:23:19,033 INFO L78 Accepts]: Start accepts. Automaton has 24162 states and 39591 transitions. Word has length 625 [2024-12-02 14:23:19,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:19,033 INFO L471 AbstractCegarLoop]: Abstraction has 24162 states and 39591 transitions. [2024-12-02 14:23:19,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:19,033 INFO L276 IsEmpty]: Start isEmpty. Operand 24162 states and 39591 transitions. [2024-12-02 14:23:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-12-02 14:23:19,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:19,039 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:19,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:23:19,039 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:19,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:19,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1968114848, now seen corresponding path program 1 times [2024-12-02 14:23:19,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:19,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056634933] [2024-12-02 14:23:19,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:19,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:20,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:20,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056634933] [2024-12-02 14:23:20,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056634933] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:20,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:20,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:23:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510664574] [2024-12-02 14:23:20,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:20,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:23:20,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:20,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:23:20,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:23:20,268 INFO L87 Difference]: Start difference. First operand 24162 states and 39591 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:21,947 INFO L93 Difference]: Finished difference Result 56934 states and 92994 transitions. [2024-12-02 14:23:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:23:21,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 626 [2024-12-02 14:23:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:22,019 INFO L225 Difference]: With dead ends: 56934 [2024-12-02 14:23:22,019 INFO L226 Difference]: Without dead ends: 35064 [2024-12-02 14:23:22,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:23:22,057 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 621 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:22,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 2128 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:23:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35064 states. [2024-12-02 14:23:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35064 to 33548. [2024-12-02 14:23:24,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33548 states, 26083 states have (on average 1.549016600851129) internal successors, (40403), 26143 states have internal predecessors, (40403), 7318 states have call successors, (7318), 146 states have call predecessors, (7318), 146 states have return successors, (7318), 7258 states have call predecessors, (7318), 7318 states have call successors, (7318) [2024-12-02 14:23:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33548 states to 33548 states and 55039 transitions. [2024-12-02 14:23:24,696 INFO L78 Accepts]: Start accepts. Automaton has 33548 states and 55039 transitions. Word has length 626 [2024-12-02 14:23:24,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:24,696 INFO L471 AbstractCegarLoop]: Abstraction has 33548 states and 55039 transitions. [2024-12-02 14:23:24,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:24,696 INFO L276 IsEmpty]: Start isEmpty. Operand 33548 states and 55039 transitions. [2024-12-02 14:23:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-12-02 14:23:24,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:24,702 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:24,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:23:24,702 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:24,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:24,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1934633301, now seen corresponding path program 1 times [2024-12-02 14:23:24,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:24,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901717581] [2024-12-02 14:23:24,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:24,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:25,387 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 66 proven. 213 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:23:25,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:25,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901717581] [2024-12-02 14:23:25,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901717581] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:23:25,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538389630] [2024-12-02 14:23:25,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:25,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:23:25,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:23:25,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:23:25,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:23:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:25,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 14:23:25,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:23:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8805 proven. 147 refuted. 0 times theorem prover too weak. 8532 trivial. 0 not checked. [2024-12-02 14:23:26,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:23:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 132 proven. 147 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:23:26,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538389630] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:23:26,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:23:26,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-12-02 14:23:26,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412639312] [2024-12-02 14:23:26,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:23:26,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:23:26,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:26,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:23:26,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:23:26,814 INFO L87 Difference]: Start difference. First operand 33548 states and 55039 transitions. Second operand has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) [2024-12-02 14:23:29,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:29,794 INFO L93 Difference]: Finished difference Result 89756 states and 146021 transitions. [2024-12-02 14:23:29,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:23:29,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) Word has length 631 [2024-12-02 14:23:29,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:29,898 INFO L225 Difference]: With dead ends: 89756 [2024-12-02 14:23:29,898 INFO L226 Difference]: Without dead ends: 56544 [2024-12-02 14:23:29,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1280 GetRequests, 1260 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2024-12-02 14:23:29,953 INFO L435 NwaCegarLoop]: 460 mSDtfsCounter, 2396 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:29,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 1462 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 14:23:29,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56544 states. [2024-12-02 14:23:33,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56544 to 55926. [2024-12-02 14:23:33,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55926 states, 45795 states have (on average 1.5571132219674637) internal successors, (71308), 45963 states have internal predecessors, (71308), 9694 states have call successors, (9694), 436 states have call predecessors, (9694), 436 states have return successors, (9694), 9526 states have call predecessors, (9694), 9694 states have call successors, (9694) [2024-12-02 14:23:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55926 states to 55926 states and 90696 transitions. [2024-12-02 14:23:33,489 INFO L78 Accepts]: Start accepts. Automaton has 55926 states and 90696 transitions. Word has length 631 [2024-12-02 14:23:33,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:33,490 INFO L471 AbstractCegarLoop]: Abstraction has 55926 states and 90696 transitions. [2024-12-02 14:23:33,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 4 states have call successors, (214), 2 states have call predecessors, (214), 4 states have return successors, (216), 4 states have call predecessors, (216), 4 states have call successors, (216) [2024-12-02 14:23:33,490 INFO L276 IsEmpty]: Start isEmpty. Operand 55926 states and 90696 transitions. [2024-12-02 14:23:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-12-02 14:23:33,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:33,499 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:33,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 14:23:33,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 14:23:33,700 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:33,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:33,700 INFO L85 PathProgramCache]: Analyzing trace with hash 512200890, now seen corresponding path program 1 times [2024-12-02 14:23:33,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:33,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156160631] [2024-12-02 14:23:33,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:33,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:33,964 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:33,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:33,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156160631] [2024-12-02 14:23:33,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156160631] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:33,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:33,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:23:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583022756] [2024-12-02 14:23:33,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:33,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:23:33,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:33,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:23:33,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:23:33,966 INFO L87 Difference]: Start difference. First operand 55926 states and 90696 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:36,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:36,783 INFO L93 Difference]: Finished difference Result 112448 states and 181432 transitions. [2024-12-02 14:23:36,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:23:36,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 632 [2024-12-02 14:23:36,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:36,910 INFO L225 Difference]: With dead ends: 112448 [2024-12-02 14:23:36,910 INFO L226 Difference]: Without dead ends: 59352 [2024-12-02 14:23:36,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:23:36,985 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 727 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:36,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1528 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 14:23:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59352 states. [2024-12-02 14:23:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59352 to 58918. [2024-12-02 14:23:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58918 states, 47274 states have (on average 1.5380335914033083) internal successors, (72709), 47442 states have internal predecessors, (72709), 10918 states have call successors, (10918), 725 states have call predecessors, (10918), 725 states have return successors, (10918), 10750 states have call predecessors, (10918), 10918 states have call successors, (10918) [2024-12-02 14:23:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58918 states to 58918 states and 94545 transitions. [2024-12-02 14:23:41,110 INFO L78 Accepts]: Start accepts. Automaton has 58918 states and 94545 transitions. Word has length 632 [2024-12-02 14:23:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:41,110 INFO L471 AbstractCegarLoop]: Abstraction has 58918 states and 94545 transitions. [2024-12-02 14:23:41,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 58918 states and 94545 transitions. [2024-12-02 14:23:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-12-02 14:23:41,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:41,120 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:41,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:23:41,120 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:41,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:41,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1983184386, now seen corresponding path program 1 times [2024-12-02 14:23:41,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:41,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259650950] [2024-12-02 14:23:41,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:41,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:23:41,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:41,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259650950] [2024-12-02 14:23:41,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259650950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:23:41,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:23:41,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:23:41,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135033957] [2024-12-02 14:23:41,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:23:41,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:23:41,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:41,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:23:41,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:23:41,462 INFO L87 Difference]: Start difference. First operand 58918 states and 94545 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:45,229 INFO L93 Difference]: Finished difference Result 153390 states and 245825 transitions. [2024-12-02 14:23:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:23:45,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 632 [2024-12-02 14:23:45,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:45,439 INFO L225 Difference]: With dead ends: 153390 [2024-12-02 14:23:45,439 INFO L226 Difference]: Without dead ends: 98488 [2024-12-02 14:23:45,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:23:45,525 INFO L435 NwaCegarLoop]: 739 mSDtfsCounter, 260 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:45,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1250 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:23:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98488 states. [2024-12-02 14:23:50,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98488 to 98270. [2024-12-02 14:23:50,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98270 states, 80901 states have (on average 1.5455927615233434) internal successors, (125040), 81285 states have internal predecessors, (125040), 16102 states have call successors, (16102), 1266 states have call predecessors, (16102), 1266 states have return successors, (16102), 15718 states have call predecessors, (16102), 16102 states have call successors, (16102) [2024-12-02 14:23:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98270 states to 98270 states and 157244 transitions. [2024-12-02 14:23:50,674 INFO L78 Accepts]: Start accepts. Automaton has 98270 states and 157244 transitions. Word has length 632 [2024-12-02 14:23:50,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:23:50,675 INFO L471 AbstractCegarLoop]: Abstraction has 98270 states and 157244 transitions. [2024-12-02 14:23:50,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-12-02 14:23:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 98270 states and 157244 transitions. [2024-12-02 14:23:50,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-12-02 14:23:50,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:23:50,686 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:50,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:23:50,686 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:23:50,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:23:50,687 INFO L85 PathProgramCache]: Analyzing trace with hash -234254510, now seen corresponding path program 1 times [2024-12-02 14:23:50,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:23:50,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788981985] [2024-12-02 14:23:50,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:50,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:23:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 132 proven. 147 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:23:51,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:23:51,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788981985] [2024-12-02 14:23:51,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788981985] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:23:51,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342875013] [2024-12-02 14:23:51,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:23:51,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:23:51,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:23:51,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:23:51,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:23:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:23:51,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 14:23:51,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:23:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 8805 proven. 147 refuted. 0 times theorem prover too weak. 8532 trivial. 0 not checked. [2024-12-02 14:23:52,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:23:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 132 proven. 147 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:23:52,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342875013] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:23:52,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:23:52,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-12-02 14:23:52,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496304142] [2024-12-02 14:23:52,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:23:52,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:23:52,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:23:52,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:23:52,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:23:52,891 INFO L87 Difference]: Start difference. First operand 98270 states and 157244 transitions. Second operand has 14 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 3 states have call successors, (192), 2 states have call predecessors, (192), 4 states have return successors, (193), 3 states have call predecessors, (193), 3 states have call successors, (193) [2024-12-02 14:23:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:23:59,398 INFO L93 Difference]: Finished difference Result 217772 states and 346834 transitions. [2024-12-02 14:23:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 14:23:59,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 3 states have call successors, (192), 2 states have call predecessors, (192), 4 states have return successors, (193), 3 states have call predecessors, (193), 3 states have call successors, (193) Word has length 633 [2024-12-02 14:23:59,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:23:59,647 INFO L225 Difference]: With dead ends: 217772 [2024-12-02 14:23:59,648 INFO L226 Difference]: Without dead ends: 123516 [2024-12-02 14:23:59,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1290 GetRequests, 1260 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=670, Unknown=0, NotChecked=0, Total=992 [2024-12-02 14:23:59,779 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 1506 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:23:59,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 1803 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 14:23:59,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123516 states. [2024-12-02 14:24:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123516 to 121128. [2024-12-02 14:24:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121128 states, 99762 states have (on average 1.5421503177562599) internal successors, (153848), 100254 states have internal predecessors, (153848), 19702 states have call successors, (19702), 1663 states have call predecessors, (19702), 1663 states have return successors, (19702), 19210 states have call predecessors, (19702), 19702 states have call successors, (19702) [2024-12-02 14:24:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121128 states to 121128 states and 193252 transitions. [2024-12-02 14:24:05,703 INFO L78 Accepts]: Start accepts. Automaton has 121128 states and 193252 transitions. Word has length 633 [2024-12-02 14:24:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:24:05,703 INFO L471 AbstractCegarLoop]: Abstraction has 121128 states and 193252 transitions. [2024-12-02 14:24:05,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 3 states have call successors, (192), 2 states have call predecessors, (192), 4 states have return successors, (193), 3 states have call predecessors, (193), 3 states have call successors, (193) [2024-12-02 14:24:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 121128 states and 193252 transitions. [2024-12-02 14:24:05,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-12-02 14:24:05,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:24:05,717 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:05,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:24:05,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:24:05,917 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:24:05,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:24:05,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1986073522, now seen corresponding path program 1 times [2024-12-02 14:24:05,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:24:05,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287888210] [2024-12-02 14:24:05,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:24:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:24:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:24:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 14:24:07,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:24:07,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287888210] [2024-12-02 14:24:07,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287888210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:24:07,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:24:07,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 14:24:07,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822482997] [2024-12-02 14:24:07,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:24:07,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 14:24:07,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:24:07,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 14:24:07,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-12-02 14:24:07,768 INFO L87 Difference]: Start difference. First operand 121128 states and 193252 transitions. Second operand has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-12-02 14:25:32,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:25:32,624 INFO L93 Difference]: Finished difference Result 1586170 states and 2547167 transitions. [2024-12-02 14:25:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 14:25:32,624 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 633 [2024-12-02 14:25:32,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:25:36,602 INFO L225 Difference]: With dead ends: 1586170 [2024-12-02 14:25:36,602 INFO L226 Difference]: Without dead ends: 1472612 [2024-12-02 14:25:36,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=429, Invalid=977, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 14:25:36,992 INFO L435 NwaCegarLoop]: 499 mSDtfsCounter, 20463 mSDsluCounter, 5455 mSDsCounter, 0 mSdLazyCounter, 3410 mSolverCounterSat, 3634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20463 SdHoareTripleChecker+Valid, 5954 SdHoareTripleChecker+Invalid, 7044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3634 IncrementalHoareTripleChecker+Valid, 3410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:25:36,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20463 Valid, 5954 Invalid, 7044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3634 Valid, 3410 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-12-02 14:25:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472612 states. [2024-12-02 14:26:20,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472612 to 512699. [2024-12-02 14:26:21,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512699 states, 428199 states have (on average 1.5523810191056027) internal successors, (664728), 430587 states have internal predecessors, (664728), 77902 states have call successors, (77902), 6597 states have call predecessors, (77902), 6597 states have return successors, (77902), 75514 states have call predecessors, (77902), 77902 states have call successors, (77902) [2024-12-02 14:26:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512699 states to 512699 states and 820532 transitions. [2024-12-02 14:26:23,414 INFO L78 Accepts]: Start accepts. Automaton has 512699 states and 820532 transitions. Word has length 633 [2024-12-02 14:26:23,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:26:23,416 INFO L471 AbstractCegarLoop]: Abstraction has 512699 states and 820532 transitions. [2024-12-02 14:26:23,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2024-12-02 14:26:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 512699 states and 820532 transitions. [2024-12-02 14:26:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-12-02 14:26:23,569 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:26:23,570 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:26:23,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:26:23,570 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:26:23,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:26:23,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1576926348, now seen corresponding path program 1 times [2024-12-02 14:26:23,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:26:23,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233486689] [2024-12-02 14:26:23,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:26:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:26:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:26:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 66 proven. 213 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:26:27,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:26:27,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233486689] [2024-12-02 14:26:27,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233486689] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:26:27,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646101291] [2024-12-02 14:26:27,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:26:27,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:26:27,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:26:27,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:26:27,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:26:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:26:27,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 14:26:27,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:26:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 10117 proven. 147 refuted. 0 times theorem prover too weak. 7220 trivial. 0 not checked. [2024-12-02 14:26:29,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:26:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 132 proven. 147 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:26:30,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646101291] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:26:30,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:26:30,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-12-02 14:26:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118140232] [2024-12-02 14:26:30,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:26:30,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:26:30,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:26:30,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:26:30,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:26:30,849 INFO L87 Difference]: Start difference. First operand 512699 states and 820532 transitions. Second operand has 14 states, 14 states have (on average 22.071428571428573) internal successors, (309), 14 states have internal predecessors, (309), 5 states have call successors, (214), 3 states have call predecessors, (214), 5 states have return successors, (216), 5 states have call predecessors, (216), 5 states have call successors, (216) [2024-12-02 14:27:16,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:27:16,435 INFO L93 Difference]: Finished difference Result 1139339 states and 1815825 transitions. [2024-12-02 14:27:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 14:27:16,436 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 22.071428571428573) internal successors, (309), 14 states have internal predecessors, (309), 5 states have call successors, (214), 3 states have call predecessors, (214), 5 states have return successors, (216), 5 states have call predecessors, (216), 5 states have call successors, (216) Word has length 633 [2024-12-02 14:27:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:27:18,743 INFO L225 Difference]: With dead ends: 1139339 [2024-12-02 14:27:18,743 INFO L226 Difference]: Without dead ends: 647605 [2024-12-02 14:27:19,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1297 GetRequests, 1263 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:27:19,315 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 2724 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:27:19,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 2073 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 14:27:19,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647605 states. [2024-12-02 14:27:47,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647605 to 291605. [2024-12-02 14:27:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291605 states, 240188 states have (on average 1.5357803054274153) internal successors, (368876), 241388 states have internal predecessors, (368876), 46294 states have call successors, (46294), 5122 states have call predecessors, (46294), 5122 states have return successors, (46294), 45094 states have call predecessors, (46294), 46294 states have call successors, (46294) [2024-12-02 14:27:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291605 states to 291605 states and 461464 transitions. [2024-12-02 14:27:48,154 INFO L78 Accepts]: Start accepts. Automaton has 291605 states and 461464 transitions. Word has length 633 [2024-12-02 14:27:48,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:27:48,155 INFO L471 AbstractCegarLoop]: Abstraction has 291605 states and 461464 transitions. [2024-12-02 14:27:48,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 22.071428571428573) internal successors, (309), 14 states have internal predecessors, (309), 5 states have call successors, (214), 3 states have call predecessors, (214), 5 states have return successors, (216), 5 states have call predecessors, (216), 5 states have call successors, (216) [2024-12-02 14:27:48,155 INFO L276 IsEmpty]: Start isEmpty. Operand 291605 states and 461464 transitions. [2024-12-02 14:27:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-12-02 14:27:48,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:27:48,187 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:48,465 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2024-12-02 14:27:48,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 14:27:48,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 14:27:48,466 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:27:48,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:27:48,467 INFO L85 PathProgramCache]: Analyzing trace with hash -281786738, now seen corresponding path program 1 times [2024-12-02 14:27:48,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:27:48,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65854538] [2024-12-02 14:27:48,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:48,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:27:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 183 proven. 96 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:27:49,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:27:49,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65854538] [2024-12-02 14:27:49,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65854538] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:27:49,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675363769] [2024-12-02 14:27:49,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:49,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:27:49,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:27:49,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:27:49,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:27:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:50,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 14:27:50,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:27:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 11675 proven. 384 refuted. 0 times theorem prover too weak. 5425 trivial. 0 not checked. [2024-12-02 14:27:53,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:27:57,319 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~var_1_76~0 1)) (.cse1 (mod c_~var_1_27~0 256))) (let ((.cse0 (< c_~var_1_97~0 c_~var_1_75~0)) (.cse4 (+ .cse1 c_~var_1_76~0 1)) (.cse3 (< 0 .cse2))) (and (or .cse0 (and (forall ((~var_1_85~0 Int)) (or (< (mod ~var_1_85~0 .cse1) .cse2) (< ~var_1_85~0 0) (< c_~var_1_97~0 ~var_1_85~0))) (or (forall ((~var_1_85~0 Int)) (or (not (= (mod ~var_1_85~0 .cse1) 0)) (< c_~var_1_97~0 ~var_1_85~0))) .cse3) (forall ((~var_1_85~0 Int)) (or (< (mod ~var_1_85~0 .cse1) .cse4) (< c_~var_1_97~0 ~var_1_85~0))))) (or .cse0 (let ((.cse5 (+ c_~var_1_75~0 1))) (and (forall ((~var_1_85~0 Int)) (or (< ~var_1_85~0 .cse5) (< (mod ~var_1_85~0 .cse1) .cse2) (< ~var_1_85~0 0))) (forall ((~var_1_85~0 Int)) (or (< ~var_1_85~0 .cse5) (< (mod ~var_1_85~0 .cse1) .cse4))) (or (forall ((~var_1_85~0 Int)) (or (not (= (mod ~var_1_85~0 .cse1) 0)) (< ~var_1_85~0 .cse5))) .cse3)))) (forall ((~var_1_85~0 Int)) (or (< c_~var_1_75~0 ~var_1_85~0) (< (mod ~var_1_85~0 .cse1) .cse4) (< c_~var_1_97~0 ~var_1_85~0))) (or (forall ((~var_1_85~0 Int)) (or (not (= (mod ~var_1_85~0 .cse1) 0)) (< c_~var_1_75~0 ~var_1_85~0) (< c_~var_1_97~0 ~var_1_85~0))) .cse3) (forall ((~var_1_85~0 Int)) (or (< c_~var_1_75~0 ~var_1_85~0) (< (mod ~var_1_85~0 .cse1) .cse2) (< ~var_1_85~0 0) (< c_~var_1_97~0 ~var_1_85~0)))))) is different from false [2024-12-02 14:28:05,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675363769] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:28:05,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 14:28:05,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 19 [2024-12-02 14:28:05,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297089721] [2024-12-02 14:28:05,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 14:28:05,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:28:05,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:28:05,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:28:05,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=297, Unknown=1, NotChecked=36, Total=420 [2024-12-02 14:28:05,032 INFO L87 Difference]: Start difference. First operand 291605 states and 461464 transitions. Second operand has 19 states, 18 states have (on average 16.11111111111111) internal successors, (290), 19 states have internal predecessors, (290), 7 states have call successors, (188), 5 states have call predecessors, (188), 9 states have return successors, (188), 6 states have call predecessors, (188), 7 states have call successors, (188) [2024-12-02 14:29:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:29:48,862 INFO L93 Difference]: Finished difference Result 1307404 states and 2026996 transitions. [2024-12-02 14:29:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-12-02 14:29:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 16.11111111111111) internal successors, (290), 19 states have internal predecessors, (290), 7 states have call successors, (188), 5 states have call predecessors, (188), 9 states have return successors, (188), 6 states have call predecessors, (188), 7 states have call successors, (188) Word has length 633 [2024-12-02 14:29:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:29:51,984 INFO L225 Difference]: With dead ends: 1307404 [2024-12-02 14:29:51,984 INFO L226 Difference]: Without dead ends: 1021142 [2024-12-02 14:29:52,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=621, Invalid=1832, Unknown=1, NotChecked=96, Total=2550 [2024-12-02 14:29:52,436 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 3239 mSDsluCounter, 4908 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 1362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 4003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1362 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:29:52,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 5477 Invalid, 4003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1362 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 14:29:52,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021142 states. [2024-12-02 14:30:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021142 to 466516. [2024-12-02 14:30:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466516 states, 389894 states have (on average 1.5580491107839567) internal successors, (607474), 391430 states have internal predecessors, (607474), 68014 states have call successors, (68014), 8607 states have call predecessors, (68014), 8607 states have return successors, (68014), 66478 states have call predecessors, (68014), 68014 states have call successors, (68014) [2024-12-02 14:30:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466516 states to 466516 states and 743502 transitions. [2024-12-02 14:30:42,682 INFO L78 Accepts]: Start accepts. Automaton has 466516 states and 743502 transitions. Word has length 633 [2024-12-02 14:30:42,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:30:42,684 INFO L471 AbstractCegarLoop]: Abstraction has 466516 states and 743502 transitions. [2024-12-02 14:30:42,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 16.11111111111111) internal successors, (290), 19 states have internal predecessors, (290), 7 states have call successors, (188), 5 states have call predecessors, (188), 9 states have return successors, (188), 6 states have call predecessors, (188), 7 states have call successors, (188) [2024-12-02 14:30:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 466516 states and 743502 transitions. [2024-12-02 14:30:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-12-02 14:30:42,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:30:42,814 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:42,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 14:30:43,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:30:43,016 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:30:43,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:30:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1657375308, now seen corresponding path program 1 times [2024-12-02 14:30:43,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:30:43,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610249739] [2024-12-02 14:30:43,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:30:43,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:30:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:30:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 195 proven. 84 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:30:46,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:30:46,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610249739] [2024-12-02 14:30:46,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610249739] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:30:46,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531408882] [2024-12-02 14:30:46,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:30:46,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:30:46,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:30:46,734 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:30:46,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 14:30:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:30:47,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 14:30:47,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:30:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 9548 proven. 372 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-12-02 14:30:52,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:30:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 180 proven. 375 refuted. 0 times theorem prover too weak. 16929 trivial. 0 not checked. [2024-12-02 14:30:54,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531408882] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:30:54,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:30:54,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 14 [2024-12-02 14:30:54,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088916231] [2024-12-02 14:30:54,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:30:54,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:30:54,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:30:54,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:30:54,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:30:54,193 INFO L87 Difference]: Start difference. First operand 466516 states and 743502 transitions. Second operand has 14 states, 14 states have (on average 23.785714285714285) internal successors, (333), 14 states have internal predecessors, (333), 5 states have call successors, (232), 3 states have call predecessors, (232), 7 states have return successors, (234), 5 states have call predecessors, (234), 5 states have call successors, (234) [2024-12-02 14:31:23,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:23,540 INFO L93 Difference]: Finished difference Result 742306 states and 1176055 transitions. [2024-12-02 14:31:23,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:31:23,541 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 23.785714285714285) internal successors, (333), 14 states have internal predecessors, (333), 5 states have call successors, (232), 3 states have call predecessors, (232), 7 states have return successors, (234), 5 states have call predecessors, (234), 5 states have call successors, (234) Word has length 633 [2024-12-02 14:31:23,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:24,306 INFO L225 Difference]: With dead ends: 742306 [2024-12-02 14:31:24,306 INFO L226 Difference]: Without dead ends: 281657 [2024-12-02 14:31:24,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1257 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=521, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:31:24,914 INFO L435 NwaCegarLoop]: 415 mSDtfsCounter, 635 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:24,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1392 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 14:31:25,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281657 states. [2024-12-02 14:31:41,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281657 to 102011. [2024-12-02 14:31:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102011 states, 84139 states have (on average 1.5352333638384104) internal successors, (129173), 84331 states have internal predecessors, (129173), 15502 states have call successors, (15502), 2369 states have call predecessors, (15502), 2369 states have return successors, (15502), 15310 states have call predecessors, (15502), 15502 states have call successors, (15502) [2024-12-02 14:31:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102011 states to 102011 states and 160177 transitions. [2024-12-02 14:31:41,794 INFO L78 Accepts]: Start accepts. Automaton has 102011 states and 160177 transitions. Word has length 633 [2024-12-02 14:31:41,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:41,794 INFO L471 AbstractCegarLoop]: Abstraction has 102011 states and 160177 transitions. [2024-12-02 14:31:41,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.785714285714285) internal successors, (333), 14 states have internal predecessors, (333), 5 states have call successors, (232), 3 states have call predecessors, (232), 7 states have return successors, (234), 5 states have call predecessors, (234), 5 states have call successors, (234) [2024-12-02 14:31:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 102011 states and 160177 transitions. [2024-12-02 14:31:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2024-12-02 14:31:41,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:41,800 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:31:41,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 14:31:42,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:31:42,001 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:42,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 134431501, now seen corresponding path program 1 times [2024-12-02 14:31:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:42,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806472329] [2024-12-02 14:31:42,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:42,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 72 proven. 207 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:31:43,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806472329] [2024-12-02 14:31:43,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806472329] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:31:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310548420] [2024-12-02 14:31:43,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:43,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:31:43,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:31:43,703 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:31:43,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41dcfed-843d-4c01-87d1-27638b204fc0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 14:31:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:44,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 14:31:44,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:31:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 2029 proven. 15 refuted. 0 times theorem prover too weak. 15440 trivial. 0 not checked. [2024-12-02 14:31:44,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:31:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 264 proven. 15 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-12-02 14:31:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310548420] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:31:45,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:31:45,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 13 [2024-12-02 14:31:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922893360] [2024-12-02 14:31:45,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:31:45,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 14:31:45,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:45,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 14:31:45,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:31:45,160 INFO L87 Difference]: Start difference. First operand 102011 states and 160177 transitions. Second operand has 13 states, 13 states have (on average 21.692307692307693) internal successors, (282), 13 states have internal predecessors, (282), 4 states have call successors, (168), 2 states have call predecessors, (168), 4 states have return successors, (170), 4 states have call predecessors, (170), 4 states have call successors, (170) [2024-12-02 14:32:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:22,409 INFO L93 Difference]: Finished difference Result 352877 states and 555719 transitions. [2024-12-02 14:32:22,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 14:32:22,410 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 21.692307692307693) internal successors, (282), 13 states have internal predecessors, (282), 4 states have call successors, (168), 2 states have call predecessors, (168), 4 states have return successors, (170), 4 states have call predecessors, (170), 4 states have call successors, (170) Word has length 634 [2024-12-02 14:32:22,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:22,937 INFO L225 Difference]: With dead ends: 352877 [2024-12-02 14:32:22,937 INFO L226 Difference]: Without dead ends: 252889 [2024-12-02 14:32:23,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1302 GetRequests, 1268 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=337, Invalid=853, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 14:32:23,067 INFO L435 NwaCegarLoop]: 464 mSDtfsCounter, 2716 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 2308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 720 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:23,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 2492 Invalid, 2308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [720 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 14:32:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252889 states.