./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-63.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_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB --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 ce8f07b8a71bb59084eea52dad126a85a39d64ef48d7a1bf4787c5beab04d918 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:05:34,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:05:34,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:05:34,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:05:34,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:05:34,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:05:34,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:05:34,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:05:34,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:05:34,110 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:05:34,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:05:34,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:05:34,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:05:34,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:05:34,111 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:05:34,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:05:34,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:05:34,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:05:34,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:05:34,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:05:34,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:05:34,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:05:34,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:05:34,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:05:34,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:05:34,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:05:34,113 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:05:34,113 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:05:34,113 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:05:34,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:05:34,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:05:34,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:05:34,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:34,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:05:34,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:05:34,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:05:34,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:05:34,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:34,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:05:34,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:05:34,115 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_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ce8f07b8a71bb59084eea52dad126a85a39d64ef48d7a1bf4787c5beab04d918 [2024-11-28 04:05:34,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:05:34,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:05:34,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:05:34,464 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:05:34,465 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:05:34,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-63.i [2024-11-28 04:05:37,544 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/data/63aeca728/357d044ba58243dc9c5b07a5a60a9e2f/FLAG87ef97ea0 [2024-11-28 04:05:37,914 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:05:37,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-63.i [2024-11-28 04:05:37,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/data/63aeca728/357d044ba58243dc9c5b07a5a60a9e2f/FLAG87ef97ea0 [2024-11-28 04:05:37,945 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/data/63aeca728/357d044ba58243dc9c5b07a5a60a9e2f [2024-11-28 04:05:37,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:05:37,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:05:37,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:05:37,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:05:37,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:05:37,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:05:37" (1/1) ... [2024-11-28 04:05:37,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ae1850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:37, skipping insertion in model container [2024-11-28 04:05:37,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:05:37" (1/1) ... [2024-11-28 04:05:37,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:05:38,180 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_62804777-69bb-479d-96f0-a95aa2d325ab/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-63.i[916,929] [2024-11-28 04:05:38,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:05:38,406 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:05:38,418 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_62804777-69bb-479d-96f0-a95aa2d325ab/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-63.i[916,929] [2024-11-28 04:05:38,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:05:38,506 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:05:38,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38 WrapperNode [2024-11-28 04:05:38,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:05:38,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:05:38,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:05:38,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:05:38,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,627 INFO L138 Inliner]: procedures = 26, calls = 87, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 569 [2024-11-28 04:05:38,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:05:38,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:05:38,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:05:38,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:05:38,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,687 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]. [2024-11-28 04:05:38,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,713 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:05:38,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:05:38,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:05:38,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:05:38,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (1/1) ... [2024-11-28 04:05:38,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:38,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:38,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:05:38,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62804777-69bb-479d-96f0-a95aa2d325ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:05:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:05:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:05:38,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:05:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:05:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:05:38,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:05:38,993 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:05:38,995 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:05:40,231 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-28 04:05:40,231 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:05:40,252 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:05:40,252 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:05:40,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:05:40 BoogieIcfgContainer [2024-11-28 04:05:40,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:05:40,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:05:40,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:05:40,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:05:40,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:05:37" (1/3) ... [2024-11-28 04:05:40,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384052b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:05:40, skipping insertion in model container [2024-11-28 04:05:40,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:38" (2/3) ... [2024-11-28 04:05:40,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384052b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:05:40, skipping insertion in model container [2024-11-28 04:05:40,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:05:40" (3/3) ... [2024-11-28 04:05:40,265 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-63.i [2024-11-28 04:05:40,282 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:05:40,286 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-63.i that has 2 procedures, 239 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:05:40,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:05:40,394 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;@61300064, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:05:40,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:05:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 162 states have (on average 1.537037037037037) internal successors, (249), 163 states have internal predecessors, (249), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 04:05:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-28 04:05:40,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:40,430 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:40,431 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:40,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:40,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1067086936, now seen corresponding path program 1 times [2024-11-28 04:05:40,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:40,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571230364] [2024-11-28 04:05:40,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:40,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:41,467 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:41,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:41,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571230364] [2024-11-28 04:05:41,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571230364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:41,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:41,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:41,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368671464] [2024-11-28 04:05:41,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:41,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:41,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:41,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:41,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:41,509 INFO L87 Difference]: Start difference. First operand has 239 states, 162 states have (on average 1.537037037037037) internal successors, (249), 163 states have internal predecessors, (249), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:41,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:41,705 INFO L93 Difference]: Finished difference Result 619 states and 1146 transitions. [2024-11-28 04:05:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 476 [2024-11-28 04:05:41,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:41,724 INFO L225 Difference]: With dead ends: 619 [2024-11-28 04:05:41,725 INFO L226 Difference]: Without dead ends: 383 [2024-11-28 04:05:41,733 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 [2024-11-28 04:05:41,736 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 237 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:41,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 969 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:05:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-28 04:05:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2024-11-28 04:05:41,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 265 states have (on average 1.5018867924528303) internal successors, (398), 266 states have internal predecessors, (398), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-28 04:05:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 622 transitions. [2024-11-28 04:05:41,876 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 622 transitions. Word has length 476 [2024-11-28 04:05:41,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:41,880 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 622 transitions. [2024-11-28 04:05:41,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 622 transitions. [2024-11-28 04:05:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-28 04:05:41,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:41,900 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:41,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:05:41,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:41,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash 713998554, now seen corresponding path program 1 times [2024-11-28 04:05:41,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:41,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209570134] [2024-11-28 04:05:41,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:41,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:42,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:42,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209570134] [2024-11-28 04:05:42,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209570134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:42,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:42,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:42,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910435165] [2024-11-28 04:05:42,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:42,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:42,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:42,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:42,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:42,492 INFO L87 Difference]: Start difference. First operand 380 states and 622 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:42,600 INFO L93 Difference]: Finished difference Result 815 states and 1326 transitions. [2024-11-28 04:05:42,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:42,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 476 [2024-11-28 04:05:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:42,611 INFO L225 Difference]: With dead ends: 815 [2024-11-28 04:05:42,611 INFO L226 Difference]: Without dead ends: 438 [2024-11-28 04:05:42,615 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 [2024-11-28 04:05:42,616 INFO L435 NwaCegarLoop]: 403 mSDtfsCounter, 33 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:42,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 775 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-28 04:05:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 406. [2024-11-28 04:05:42,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 291 states have (on average 1.4982817869415808) internal successors, (436), 292 states have internal predecessors, (436), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-28 04:05:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 660 transitions. [2024-11-28 04:05:42,713 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 660 transitions. Word has length 476 [2024-11-28 04:05:42,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:42,715 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 660 transitions. [2024-11-28 04:05:42,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 660 transitions. [2024-11-28 04:05:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-28 04:05:42,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:42,726 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:42,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:05:42,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:42,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1426473242, now seen corresponding path program 1 times [2024-11-28 04:05:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:42,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447143168] [2024-11-28 04:05:42,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:43,392 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:43,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:43,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447143168] [2024-11-28 04:05:43,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447143168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:43,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:43,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:43,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142617239] [2024-11-28 04:05:43,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:43,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:05:43,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:43,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:05:43,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:43,395 INFO L87 Difference]: Start difference. First operand 406 states and 660 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:43,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:43,713 INFO L93 Difference]: Finished difference Result 1354 states and 2192 transitions. [2024-11-28 04:05:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:43,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 476 [2024-11-28 04:05:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:43,747 INFO L225 Difference]: With dead ends: 1354 [2024-11-28 04:05:43,747 INFO L226 Difference]: Without dead ends: 951 [2024-11-28 04:05:43,749 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 [2024-11-28 04:05:43,750 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 544 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:43,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1232 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:05:43,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-28 04:05:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 943. [2024-11-28 04:05:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 750 states have (on average 1.536) internal successors, (1152), 755 states have internal predecessors, (1152), 184 states have call successors, (184), 8 states have call predecessors, (184), 8 states have return successors, (184), 179 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-28 04:05:43,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1520 transitions. [2024-11-28 04:05:43,874 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1520 transitions. Word has length 476 [2024-11-28 04:05:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:43,875 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1520 transitions. [2024-11-28 04:05:43,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1520 transitions. [2024-11-28 04:05:43,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-28 04:05:43,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:43,891 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:43,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:05:43,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:43,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:43,892 INFO L85 PathProgramCache]: Analyzing trace with hash -817510056, now seen corresponding path program 1 times [2024-11-28 04:05:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:43,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662539308] [2024-11-28 04:05:43,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:44,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:44,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:44,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662539308] [2024-11-28 04:05:44,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662539308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:44,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:44,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:44,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489416349] [2024-11-28 04:05:44,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:44,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:44,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:44,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:44,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:44,800 INFO L87 Difference]: Start difference. First operand 943 states and 1520 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:44,946 INFO L93 Difference]: Finished difference Result 2823 states and 4554 transitions. [2024-11-28 04:05:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:44,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 476 [2024-11-28 04:05:44,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:44,963 INFO L225 Difference]: With dead ends: 2823 [2024-11-28 04:05:44,963 INFO L226 Difference]: Without dead ends: 1883 [2024-11-28 04:05:44,967 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 [2024-11-28 04:05:44,969 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 251 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:44,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 759 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:44,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2024-11-28 04:05:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1873. [2024-11-28 04:05:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1488 states have (on average 1.5309139784946237) internal successors, (2278), 1498 states have internal predecessors, (2278), 368 states have call successors, (368), 16 states have call predecessors, (368), 16 states have return successors, (368), 358 states have call predecessors, (368), 368 states have call successors, (368) [2024-11-28 04:05:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 3014 transitions. [2024-11-28 04:05:45,212 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 3014 transitions. Word has length 476 [2024-11-28 04:05:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:45,213 INFO L471 AbstractCegarLoop]: Abstraction has 1873 states and 3014 transitions. [2024-11-28 04:05:45,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 3014 transitions. [2024-11-28 04:05:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-28 04:05:45,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:45,225 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:45,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:05:45,225 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:45,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash -237063014, now seen corresponding path program 1 times [2024-11-28 04:05:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:45,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739683702] [2024-11-28 04:05:45,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:45,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739683702] [2024-11-28 04:05:45,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739683702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:45,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:45,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:45,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083351359] [2024-11-28 04:05:45,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:45,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:45,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:45,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:45,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:45,907 INFO L87 Difference]: Start difference. First operand 1873 states and 3014 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:46,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:46,146 INFO L93 Difference]: Finished difference Result 3803 states and 6107 transitions. [2024-11-28 04:05:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:46,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 477 [2024-11-28 04:05:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:46,163 INFO L225 Difference]: With dead ends: 3803 [2024-11-28 04:05:46,164 INFO L226 Difference]: Without dead ends: 1933 [2024-11-28 04:05:46,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:46,170 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 229 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:46,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 670 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2024-11-28 04:05:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1932. [2024-11-28 04:05:46,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1517 states have (on average 1.5168094924192486) internal successors, (2301), 1528 states have internal predecessors, (2301), 394 states have call successors, (394), 20 states have call predecessors, (394), 20 states have return successors, (394), 383 states have call predecessors, (394), 394 states have call successors, (394) [2024-11-28 04:05:46,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3089 transitions. [2024-11-28 04:05:46,430 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3089 transitions. Word has length 477 [2024-11-28 04:05:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:46,431 INFO L471 AbstractCegarLoop]: Abstraction has 1932 states and 3089 transitions. [2024-11-28 04:05:46,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3089 transitions. [2024-11-28 04:05:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-28 04:05:46,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:46,442 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:46,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:05:46,443 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:46,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:46,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1952640704, now seen corresponding path program 1 times [2024-11-28 04:05:46,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:46,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430933452] [2024-11-28 04:05:46,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:46,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:47,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:47,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:47,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430933452] [2024-11-28 04:05:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430933452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:47,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:47,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:47,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86673772] [2024-11-28 04:05:47,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:47,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:47,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:47,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:47,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:47,956 INFO L87 Difference]: Start difference. First operand 1932 states and 3089 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:49,866 INFO L93 Difference]: Finished difference Result 6462 states and 10421 transitions. [2024-11-28 04:05:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:49,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 478 [2024-11-28 04:05:49,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:49,891 INFO L225 Difference]: With dead ends: 6462 [2024-11-28 04:05:49,892 INFO L226 Difference]: Without dead ends: 4576 [2024-11-28 04:05:49,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:49,902 INFO L435 NwaCegarLoop]: 1051 mSDtfsCounter, 730 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:49,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1933 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:05:49,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4576 states. [2024-11-28 04:05:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4576 to 2263. [2024-11-28 04:05:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 1799 states have (on average 1.50917176209005) internal successors, (2715), 1810 states have internal predecessors, (2715), 442 states have call successors, (442), 21 states have call predecessors, (442), 21 states have return successors, (442), 431 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-28 04:05:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 3599 transitions. [2024-11-28 04:05:50,305 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 3599 transitions. Word has length 478 [2024-11-28 04:05:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:50,307 INFO L471 AbstractCegarLoop]: Abstraction has 2263 states and 3599 transitions. [2024-11-28 04:05:50,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:50,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 3599 transitions. [2024-11-28 04:05:50,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-28 04:05:50,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:50,315 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:50,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:05:50,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:50,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:50,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1763664298, now seen corresponding path program 1 times [2024-11-28 04:05:50,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:50,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005188806] [2024-11-28 04:05:50,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:50,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:51,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:51,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005188806] [2024-11-28 04:05:51,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005188806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:51,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:51,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660166694] [2024-11-28 04:05:51,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:51,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:05:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:51,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:05:51,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:51,058 INFO L87 Difference]: Start difference. First operand 2263 states and 3599 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:52,178 INFO L93 Difference]: Finished difference Result 10363 states and 16414 transitions. [2024-11-28 04:05:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:52,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 479 [2024-11-28 04:05:52,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:52,222 INFO L225 Difference]: With dead ends: 10363 [2024-11-28 04:05:52,222 INFO L226 Difference]: Without dead ends: 8225 [2024-11-28 04:05:52,230 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 [2024-11-28 04:05:52,231 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 920 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:52,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1497 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:05:52,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2024-11-28 04:05:53,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 8215. [2024-11-28 04:05:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8215 states, 6714 states have (on average 1.5111706881143878) internal successors, (10146), 6759 states have internal predecessors, (10146), 1418 states have call successors, (1418), 82 states have call predecessors, (1418), 82 states have return successors, (1418), 1373 states have call predecessors, (1418), 1418 states have call successors, (1418) [2024-11-28 04:05:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8215 states to 8215 states and 12982 transitions. [2024-11-28 04:05:53,110 INFO L78 Accepts]: Start accepts. Automaton has 8215 states and 12982 transitions. Word has length 479 [2024-11-28 04:05:53,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:53,112 INFO L471 AbstractCegarLoop]: Abstraction has 8215 states and 12982 transitions. [2024-11-28 04:05:53,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:53,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8215 states and 12982 transitions. [2024-11-28 04:05:53,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-28 04:05:53,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:53,123 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:53,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:05:53,124 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:53,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:53,124 INFO L85 PathProgramCache]: Analyzing trace with hash 725864664, now seen corresponding path program 1 times [2024-11-28 04:05:53,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:53,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513214926] [2024-11-28 04:05:53,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:54,025 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:54,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:54,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513214926] [2024-11-28 04:05:54,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513214926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:54,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:54,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:54,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872701610] [2024-11-28 04:05:54,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:54,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:54,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:54,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:54,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:54,031 INFO L87 Difference]: Start difference. First operand 8215 states and 12982 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:56,814 INFO L93 Difference]: Finished difference Result 22611 states and 35712 transitions. [2024-11-28 04:05:56,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:56,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 479 [2024-11-28 04:05:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:56,913 INFO L225 Difference]: With dead ends: 22611 [2024-11-28 04:05:56,914 INFO L226 Difference]: Without dead ends: 14525 [2024-11-28 04:05:56,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:05:56,935 INFO L435 NwaCegarLoop]: 729 mSDtfsCounter, 361 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:56,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 2926 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:05:56,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14525 states. [2024-11-28 04:05:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14525 to 8839. [2024-11-28 04:05:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8839 states, 7338 states have (on average 1.500408830744072) internal successors, (11010), 7383 states have internal predecessors, (11010), 1418 states have call successors, (1418), 82 states have call predecessors, (1418), 82 states have return successors, (1418), 1373 states have call predecessors, (1418), 1418 states have call successors, (1418) [2024-11-28 04:05:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8839 states to 8839 states and 13846 transitions. [2024-11-28 04:05:58,324 INFO L78 Accepts]: Start accepts. Automaton has 8839 states and 13846 transitions. Word has length 479 [2024-11-28 04:05:58,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:58,325 INFO L471 AbstractCegarLoop]: Abstraction has 8839 states and 13846 transitions. [2024-11-28 04:05:58,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:05:58,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8839 states and 13846 transitions. [2024-11-28 04:05:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-28 04:05:58,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:58,336 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:58,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:05:58,336 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:58,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:58,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1255151484, now seen corresponding path program 1 times [2024-11-28 04:05:58,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:58,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781597281] [2024-11-28 04:05:58,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:58,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:59,225 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:05:59,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:59,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781597281] [2024-11-28 04:05:59,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781597281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:59,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:59,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:59,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002045614] [2024-11-28 04:05:59,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:59,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:59,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:59,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:59,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:59,231 INFO L87 Difference]: Start difference. First operand 8839 states and 13846 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:02,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:02,890 INFO L93 Difference]: Finished difference Result 23619 states and 37056 transitions. [2024-11-28 04:06:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:06:02,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 480 [2024-11-28 04:06:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:02,973 INFO L225 Difference]: With dead ends: 23619 [2024-11-28 04:06:02,974 INFO L226 Difference]: Without dead ends: 14909 [2024-11-28 04:06:02,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:06:02,999 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 355 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:02,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 2910 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:06:03,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14909 states. [2024-11-28 04:06:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14909 to 9319. [2024-11-28 04:06:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9319 states, 7818 states have (on average 1.5003837298541827) internal successors, (11730), 7863 states have internal predecessors, (11730), 1418 states have call successors, (1418), 82 states have call predecessors, (1418), 82 states have return successors, (1418), 1373 states have call predecessors, (1418), 1418 states have call successors, (1418) [2024-11-28 04:06:04,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9319 states to 9319 states and 14566 transitions. [2024-11-28 04:06:04,343 INFO L78 Accepts]: Start accepts. Automaton has 9319 states and 14566 transitions. Word has length 480 [2024-11-28 04:06:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:04,344 INFO L471 AbstractCegarLoop]: Abstraction has 9319 states and 14566 transitions. [2024-11-28 04:06:04,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 9319 states and 14566 transitions. [2024-11-28 04:06:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-28 04:06:04,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:04,356 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:04,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:06:04,356 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:04,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:04,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2032887937, now seen corresponding path program 1 times [2024-11-28 04:06:04,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:04,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102981602] [2024-11-28 04:06:04,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:04,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:06:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102981602] [2024-11-28 04:06:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102981602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:05,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:05,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:06:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137704464] [2024-11-28 04:06:05,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:05,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:06:05,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:05,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:06:05,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:06:05,918 INFO L87 Difference]: Start difference. First operand 9319 states and 14566 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:09,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:09,841 INFO L93 Difference]: Finished difference Result 35007 states and 53238 transitions. [2024-11-28 04:06:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:06:09,842 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 480 [2024-11-28 04:06:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:09,930 INFO L225 Difference]: With dead ends: 35007 [2024-11-28 04:06:09,930 INFO L226 Difference]: Without dead ends: 25817 [2024-11-28 04:06:09,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:06:09,952 INFO L435 NwaCegarLoop]: 397 mSDtfsCounter, 529 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:09,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 2822 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:06:09,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25817 states. [2024-11-28 04:06:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25817 to 20043. [2024-11-28 04:06:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20043 states, 17118 states have (on average 1.46267087276551) internal successors, (25038), 17207 states have internal predecessors, (25038), 2762 states have call successors, (2762), 162 states have call predecessors, (2762), 162 states have return successors, (2762), 2673 states have call predecessors, (2762), 2762 states have call successors, (2762) [2024-11-28 04:06:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20043 states to 20043 states and 30562 transitions. [2024-11-28 04:06:12,222 INFO L78 Accepts]: Start accepts. Automaton has 20043 states and 30562 transitions. Word has length 480 [2024-11-28 04:06:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:12,223 INFO L471 AbstractCegarLoop]: Abstraction has 20043 states and 30562 transitions. [2024-11-28 04:06:12,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 20043 states and 30562 transitions. [2024-11-28 04:06:12,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-28 04:06:12,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:12,240 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:12,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:06:12,241 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:12,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:12,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1287702116, now seen corresponding path program 1 times [2024-11-28 04:06:12,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:12,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861100798] [2024-11-28 04:06:12,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:12,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:13,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:06:13,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:13,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861100798] [2024-11-28 04:06:13,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861100798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:13,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:13,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:06:13,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572422919] [2024-11-28 04:06:13,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:13,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:06:13,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:13,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:06:13,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:06:13,194 INFO L87 Difference]: Start difference. First operand 20043 states and 30562 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:15,897 INFO L93 Difference]: Finished difference Result 46587 states and 69374 transitions. [2024-11-28 04:06:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:06:15,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 481 [2024-11-28 04:06:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:15,996 INFO L225 Difference]: With dead ends: 46587 [2024-11-28 04:06:15,996 INFO L226 Difference]: Without dead ends: 26673 [2024-11-28 04:06:16,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:06:16,029 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 80 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:16,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 2654 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:06:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26673 states. [2024-11-28 04:06:18,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26673 to 20427. [2024-11-28 04:06:18,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20427 states, 17502 states have (on average 1.4580047994514913) internal successors, (25518), 17591 states have internal predecessors, (25518), 2762 states have call successors, (2762), 162 states have call predecessors, (2762), 162 states have return successors, (2762), 2673 states have call predecessors, (2762), 2762 states have call successors, (2762) [2024-11-28 04:06:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20427 states to 20427 states and 31042 transitions. [2024-11-28 04:06:18,192 INFO L78 Accepts]: Start accepts. Automaton has 20427 states and 31042 transitions. Word has length 481 [2024-11-28 04:06:18,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:18,194 INFO L471 AbstractCegarLoop]: Abstraction has 20427 states and 31042 transitions. [2024-11-28 04:06:18,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 20427 states and 31042 transitions. [2024-11-28 04:06:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-28 04:06:18,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:18,210 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:18,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:06:18,210 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:18,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash 607503304, now seen corresponding path program 1 times [2024-11-28 04:06:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067072080] [2024-11-28 04:06:18,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:18,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:06:18,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067072080] [2024-11-28 04:06:18,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067072080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:18,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:18,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:06:18,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126395588] [2024-11-28 04:06:18,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:18,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:06:18,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:18,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:06:18,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:06:18,387 INFO L87 Difference]: Start difference. First operand 20427 states and 31042 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:21,106 INFO L93 Difference]: Finished difference Result 56415 states and 85908 transitions. [2024-11-28 04:06:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:06:21,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 481 [2024-11-28 04:06:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:21,235 INFO L225 Difference]: With dead ends: 56415 [2024-11-28 04:06:21,235 INFO L226 Difference]: Without dead ends: 36117 [2024-11-28 04:06:21,262 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 [2024-11-28 04:06:21,263 INFO L435 NwaCegarLoop]: 404 mSDtfsCounter, 367 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:21,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 771 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:06:21,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36117 states. [2024-11-28 04:06:23,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36117 to 23595. [2024-11-28 04:06:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23595 states, 20670 states have (on average 1.4342525399129173) internal successors, (29646), 20759 states have internal predecessors, (29646), 2762 states have call successors, (2762), 162 states have call predecessors, (2762), 162 states have return successors, (2762), 2673 states have call predecessors, (2762), 2762 states have call successors, (2762) [2024-11-28 04:06:23,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23595 states to 23595 states and 35170 transitions. [2024-11-28 04:06:23,764 INFO L78 Accepts]: Start accepts. Automaton has 23595 states and 35170 transitions. Word has length 481 [2024-11-28 04:06:23,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:23,765 INFO L471 AbstractCegarLoop]: Abstraction has 23595 states and 35170 transitions. [2024-11-28 04:06:23,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:23,766 INFO L276 IsEmpty]: Start isEmpty. Operand 23595 states and 35170 transitions. [2024-11-28 04:06:23,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-28 04:06:23,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:23,791 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:23,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:06:23,791 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:23,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash 503616107, now seen corresponding path program 1 times [2024-11-28 04:06:23,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:23,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831547709] [2024-11-28 04:06:23,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:23,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:24,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:06:24,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:24,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831547709] [2024-11-28 04:06:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831547709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:24,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:24,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:06:24,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741108537] [2024-11-28 04:06:24,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:24,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:06:24,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:24,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:06:24,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:06:24,978 INFO L87 Difference]: Start difference. First operand 23595 states and 35170 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:27,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:27,012 INFO L93 Difference]: Finished difference Result 51433 states and 75757 transitions. [2024-11-28 04:06:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:06:27,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 481 [2024-11-28 04:06:27,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:27,095 INFO L225 Difference]: With dead ends: 51433 [2024-11-28 04:06:27,095 INFO L226 Difference]: Without dead ends: 27967 [2024-11-28 04:06:27,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:06:27,136 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 73 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:27,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1950 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:06:27,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27967 states. [2024-11-28 04:06:28,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27967 to 22539. [2024-11-28 04:06:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22539 states, 19614 states have (on average 1.4184765983481187) internal successors, (27822), 19703 states have internal predecessors, (27822), 2762 states have call successors, (2762), 162 states have call predecessors, (2762), 162 states have return successors, (2762), 2673 states have call predecessors, (2762), 2762 states have call successors, (2762) [2024-11-28 04:06:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22539 states to 22539 states and 33346 transitions. [2024-11-28 04:06:28,983 INFO L78 Accepts]: Start accepts. Automaton has 22539 states and 33346 transitions. Word has length 481 [2024-11-28 04:06:28,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:28,984 INFO L471 AbstractCegarLoop]: Abstraction has 22539 states and 33346 transitions. [2024-11-28 04:06:28,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand 22539 states and 33346 transitions. [2024-11-28 04:06:29,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-28 04:06:29,002 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:29,002 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:29,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:06:29,003 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:29,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1222801043, now seen corresponding path program 1 times [2024-11-28 04:06:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:29,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775037834] [2024-11-28 04:06:29,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:29,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:06:29,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:29,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775037834] [2024-11-28 04:06:29,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775037834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:29,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:29,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:06:29,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089809574] [2024-11-28 04:06:29,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:29,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:06:29,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:29,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:06:29,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:06:29,193 INFO L87 Difference]: Start difference. First operand 22539 states and 33346 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:33,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:33,077 INFO L93 Difference]: Finished difference Result 59103 states and 87924 transitions. [2024-11-28 04:06:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:06:33,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 481 [2024-11-28 04:06:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:33,198 INFO L225 Difference]: With dead ends: 59103 [2024-11-28 04:06:33,198 INFO L226 Difference]: Without dead ends: 36693 [2024-11-28 04:06:33,439 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 [2024-11-28 04:06:33,439 INFO L435 NwaCegarLoop]: 399 mSDtfsCounter, 370 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:33,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 766 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:06:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36693 states. [2024-11-28 04:06:35,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36693 to 25515. [2024-11-28 04:06:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25515 states, 22590 states have (on average 1.39734395750332) internal successors, (31566), 22679 states have internal predecessors, (31566), 2762 states have call successors, (2762), 162 states have call predecessors, (2762), 162 states have return successors, (2762), 2673 states have call predecessors, (2762), 2762 states have call successors, (2762) [2024-11-28 04:06:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25515 states to 25515 states and 37090 transitions. [2024-11-28 04:06:35,351 INFO L78 Accepts]: Start accepts. Automaton has 25515 states and 37090 transitions. Word has length 481 [2024-11-28 04:06:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:35,351 INFO L471 AbstractCegarLoop]: Abstraction has 25515 states and 37090 transitions. [2024-11-28 04:06:35,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 25515 states and 37090 transitions. [2024-11-28 04:06:35,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-28 04:06:35,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:35,377 INFO L218 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:35,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:06:35,377 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:35,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash 78997764, now seen corresponding path program 1 times [2024-11-28 04:06:35,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:35,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972244309] [2024-11-28 04:06:35,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:35,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2024-11-28 04:06:35,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:35,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972244309] [2024-11-28 04:06:35,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972244309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:35,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:35,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:06:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419020387] [2024-11-28 04:06:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:35,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:06:35,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:35,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:06:35,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:06:35,601 INFO L87 Difference]: Start difference. First operand 25515 states and 37090 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2024-11-28 04:06:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:39,607 INFO L93 Difference]: Finished difference Result 62319 states and 91860 transitions. [2024-11-28 04:06:39,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:06:39,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 481 [2024-11-28 04:06:39,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:39,730 INFO L225 Difference]: With dead ends: 62319 [2024-11-28 04:06:39,730 INFO L226 Difference]: Without dead ends: 36933 [2024-11-28 04:06:39,779 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 [2024-11-28 04:06:39,780 INFO L435 NwaCegarLoop]: 731 mSDtfsCounter, 355 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:39,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1099 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:06:39,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36933 states.