./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-57.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_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/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_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/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_3d820ade-b63c-4422-97ec-0d9d0717bc67/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 7be03f27538991dd67b7dfcb6fbc9241148361cd7f7a5a94d15a5ee9d44d0977 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:59:40,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:59:40,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:59:40,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:59:40,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:59:40,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:59:40,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:59:40,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:59:40,538 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:59:40,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:59:40,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:59:40,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:59:40,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:59:40,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:59:40,539 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:59:40,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:59:40,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:59:40,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:59:40,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:59:40,542 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:59:40,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:59:40,542 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:59:40,542 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:59:40,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:59:40,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:59:40,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:40,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:59:40,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:59:40,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:59:40,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:59:40,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:40,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:59:40,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:59:40,544 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:59:40,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:59:40,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:59:40,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:59:40,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:59:40,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:59:40,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:59:40,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:59:40,545 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_3d820ade-b63c-4422-97ec-0d9d0717bc67/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 -> 7be03f27538991dd67b7dfcb6fbc9241148361cd7f7a5a94d15a5ee9d44d0977 [2024-11-28 04:59:40,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:59:40,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:59:40,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:59:40,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:59:40,944 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:59:40,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-57.i [2024-11-28 04:59:44,284 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/data/840683dc6/4e32163173164ddd97765e1ef36583ff/FLAGc0d5aab0b [2024-11-28 04:59:44,874 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:59:44,878 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-57.i [2024-11-28 04:59:44,899 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/data/840683dc6/4e32163173164ddd97765e1ef36583ff/FLAGc0d5aab0b [2024-11-28 04:59:44,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/data/840683dc6/4e32163173164ddd97765e1ef36583ff [2024-11-28 04:59:44,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:59:44,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:59:44,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:44,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:59:44,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:59:44,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:44" (1/1) ... [2024-11-28 04:59:44,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440dcf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:44, skipping insertion in model container [2024-11-28 04:59:44,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:44" (1/1) ... [2024-11-28 04:59:44,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:59:45,184 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_3d820ade-b63c-4422-97ec-0d9d0717bc67/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-57.i[916,929] [2024-11-28 04:59:45,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:45,495 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:59:45,513 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_3d820ade-b63c-4422-97ec-0d9d0717bc67/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-57.i[916,929] [2024-11-28 04:59:45,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:45,747 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:59:45,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45 WrapperNode [2024-11-28 04:59:45,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:45,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:45,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:59:45,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:59:45,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:45,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,001 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 801 [2024-11-28 04:59:46,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:46,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:59:46,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:59:46,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:59:46,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,114 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 04:59:46,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,179 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:59:46,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:59:46,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:59:46,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:59:46,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (1/1) ... [2024-11-28 04:59:46,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:46,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:46,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:59:46,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:59:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:59:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:59:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:59:46,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:59:46,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:59:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:59:46,548 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:59:46,550 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:59:48,830 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-11-28 04:59:48,830 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:59:48,857 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:59:48,857 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 04:59:48,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:48 BoogieIcfgContainer [2024-11-28 04:59:48,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:59:48,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:59:48,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:59:48,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:59:48,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:59:44" (1/3) ... [2024-11-28 04:59:48,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa8994e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:48, skipping insertion in model container [2024-11-28 04:59:48,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:45" (2/3) ... [2024-11-28 04:59:48,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa8994e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:48, skipping insertion in model container [2024-11-28 04:59:48,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:48" (3/3) ... [2024-11-28 04:59:48,870 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-57.i [2024-11-28 04:59:48,888 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:59:48,891 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-57.i that has 2 procedures, 309 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:59:48,980 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:59:48,995 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;@35120eba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:59:48,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:59:49,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 309 states, 226 states have (on average 1.5176991150442478) internal successors, (343), 227 states have internal predecessors, (343), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:59:49,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-28 04:59:49,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:49,077 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:49,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:49,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:49,089 INFO L85 PathProgramCache]: Analyzing trace with hash -325161732, now seen corresponding path program 1 times [2024-11-28 04:59:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:49,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51899072] [2024-11-28 04:59:49,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:49,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 12482 trivial. 0 not checked. [2024-11-28 04:59:50,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:50,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51899072] [2024-11-28 04:59:50,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51899072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:50,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525565165] [2024-11-28 04:59:50,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:50,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:50,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:50,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:50,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:59:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:50,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:59:50,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:50,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 12482 trivial. 0 not checked. [2024-11-28 04:59:50,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:50,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525565165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:50,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:50,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:59:50,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418782053] [2024-11-28 04:59:50,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:50,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:59:50,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:50,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:59:50,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:59:50,962 INFO L87 Difference]: Start difference. First operand has 309 states, 226 states have (on average 1.5176991150442478) internal successors, (343), 227 states have internal predecessors, (343), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-28 04:59:51,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:51,065 INFO L93 Difference]: Finished difference Result 611 states and 1080 transitions. [2024-11-28 04:59:51,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:59:51,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 2 states have call successors, (80) Word has length 553 [2024-11-28 04:59:51,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:51,080 INFO L225 Difference]: With dead ends: 611 [2024-11-28 04:59:51,080 INFO L226 Difference]: Without dead ends: 305 [2024-11-28 04:59:51,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:59:51,089 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:51,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:51,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-28 04:59:51,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-28 04:59:51,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 223 states have (on average 1.5022421524663676) internal successors, (335), 223 states have internal predecessors, (335), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:59:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 495 transitions. [2024-11-28 04:59:51,200 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 495 transitions. Word has length 553 [2024-11-28 04:59:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:51,201 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 495 transitions. [2024-11-28 04:59:51,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-28 04:59:51,203 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 495 transitions. [2024-11-28 04:59:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-28 04:59:51,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:51,218 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:51,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:51,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d820ade-b63c-4422-97ec-0d9d0717bc67/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:59:51,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:51,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:51,424 INFO L85 PathProgramCache]: Analyzing trace with hash 906892216, now seen corresponding path program 1 times [2024-11-28 04:59:51,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:51,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995604412] [2024-11-28 04:59:51,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:51,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 04:59:52,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:52,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995604412] [2024-11-28 04:59:52,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995604412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:52,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:52,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315315679] [2024-11-28 04:59:52,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:52,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:52,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:52,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:52,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:52,492 INFO L87 Difference]: Start difference. First operand 305 states and 495 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:52,636 INFO L93 Difference]: Finished difference Result 909 states and 1479 transitions. [2024-11-28 04:59:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:52,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 553 [2024-11-28 04:59:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:52,650 INFO L225 Difference]: With dead ends: 909 [2024-11-28 04:59:52,650 INFO L226 Difference]: Without dead ends: 607 [2024-11-28 04:59:52,651 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 04:59:52,652 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 489 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:52,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 975 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:52,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-28 04:59:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 605. [2024-11-28 04:59:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 442 states have (on average 1.502262443438914) internal successors, (664), 442 states have internal predecessors, (664), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-28 04:59:52,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 984 transitions. [2024-11-28 04:59:52,784 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 984 transitions. Word has length 553 [2024-11-28 04:59:52,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:52,787 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 984 transitions. [2024-11-28 04:59:52,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:52,788 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 984 transitions. [2024-11-28 04:59:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-28 04:59:52,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:52,802 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:52,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:59:52,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:52,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:52,847 INFO L85 PathProgramCache]: Analyzing trace with hash 136158650, now seen corresponding path program 1 times [2024-11-28 04:59:52,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:52,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188348617] [2024-11-28 04:59:52,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:52,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 04:59:53,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:53,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188348617] [2024-11-28 04:59:53,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188348617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:53,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:53,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:53,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943523888] [2024-11-28 04:59:53,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:53,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:53,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:53,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:53,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:53,391 INFO L87 Difference]: Start difference. First operand 605 states and 984 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:53,551 INFO L93 Difference]: Finished difference Result 1807 states and 2942 transitions. [2024-11-28 04:59:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:53,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 553 [2024-11-28 04:59:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:53,562 INFO L225 Difference]: With dead ends: 1807 [2024-11-28 04:59:53,563 INFO L226 Difference]: Without dead ends: 1205 [2024-11-28 04:59:53,565 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 04:59:53,566 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 467 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:53,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 966 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:59:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-11-28 04:59:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1203. [2024-11-28 04:59:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 878 states have (on average 1.4943052391799545) internal successors, (1312), 878 states have internal predecessors, (1312), 320 states have call successors, (320), 4 states have call predecessors, (320), 4 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2024-11-28 04:59:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1952 transitions. [2024-11-28 04:59:53,858 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1952 transitions. Word has length 553 [2024-11-28 04:59:53,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:53,862 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1952 transitions. [2024-11-28 04:59:53,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1952 transitions. [2024-11-28 04:59:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-28 04:59:53,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:53,883 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:53,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:59:53,883 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:53,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:53,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1023381496, now seen corresponding path program 1 times [2024-11-28 04:59:53,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:53,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092043065] [2024-11-28 04:59:53,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:53,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:54,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 04:59:54,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:54,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092043065] [2024-11-28 04:59:54,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092043065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:54,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:54,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:54,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530530474] [2024-11-28 04:59:54,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:54,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:54,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:54,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:54,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:54,503 INFO L87 Difference]: Start difference. First operand 1203 states and 1952 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:54,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:54,887 INFO L93 Difference]: Finished difference Result 3595 states and 5834 transitions. [2024-11-28 04:59:54,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:54,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 553 [2024-11-28 04:59:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:54,906 INFO L225 Difference]: With dead ends: 3595 [2024-11-28 04:59:54,907 INFO L226 Difference]: Without dead ends: 2395 [2024-11-28 04:59:54,912 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 04:59:54,913 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 480 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:54,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1004 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:59:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2024-11-28 04:59:55,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2393. [2024-11-28 04:59:55,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 1744 states have (on average 1.488532110091743) internal successors, (2596), 1744 states have internal predecessors, (2596), 640 states have call successors, (640), 8 states have call predecessors, (640), 8 states have return successors, (640), 640 states have call predecessors, (640), 640 states have call successors, (640) [2024-11-28 04:59:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3876 transitions. [2024-11-28 04:59:55,258 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3876 transitions. Word has length 553 [2024-11-28 04:59:55,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:55,259 INFO L471 AbstractCegarLoop]: Abstraction has 2393 states and 3876 transitions. [2024-11-28 04:59:55,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:55,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3876 transitions. [2024-11-28 04:59:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-28 04:59:55,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:55,272 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:55,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:59:55,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:55,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash 946480698, now seen corresponding path program 1 times [2024-11-28 04:59:55,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:55,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628967390] [2024-11-28 04:59:55,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:55,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 04:59:55,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:55,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628967390] [2024-11-28 04:59:55,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628967390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:55,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:55,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:55,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966223426] [2024-11-28 04:59:55,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:55,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:55,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:55,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:55,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:55,862 INFO L87 Difference]: Start difference. First operand 2393 states and 3876 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:56,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:56,372 INFO L93 Difference]: Finished difference Result 6973 states and 11298 transitions. [2024-11-28 04:59:56,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:56,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 553 [2024-11-28 04:59:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:56,416 INFO L225 Difference]: With dead ends: 6973 [2024-11-28 04:59:56,416 INFO L226 Difference]: Without dead ends: 4583 [2024-11-28 04:59:56,426 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 04:59:56,427 INFO L435 NwaCegarLoop]: 928 mSDtfsCounter, 439 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:56,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1415 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2024-11-28 04:59:56,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 2449. [2024-11-28 04:59:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 1800 states have (on average 1.4844444444444445) internal successors, (2672), 1800 states have internal predecessors, (2672), 640 states have call successors, (640), 8 states have call predecessors, (640), 8 states have return successors, (640), 640 states have call predecessors, (640), 640 states have call successors, (640) [2024-11-28 04:59:56,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3952 transitions. [2024-11-28 04:59:56,911 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3952 transitions. Word has length 553 [2024-11-28 04:59:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:56,914 INFO L471 AbstractCegarLoop]: Abstraction has 2449 states and 3952 transitions. [2024-11-28 04:59:56,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3952 transitions. [2024-11-28 04:59:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-28 04:59:56,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:56,924 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:56,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:59:56,925 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:56,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:56,926 INFO L85 PathProgramCache]: Analyzing trace with hash 453854524, now seen corresponding path program 1 times [2024-11-28 04:59:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:56,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794999281] [2024-11-28 04:59:56,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:56,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 04:59:57,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:57,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794999281] [2024-11-28 04:59:57,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794999281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:57,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:57,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:57,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453056229] [2024-11-28 04:59:57,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:57,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:57,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:57,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:57,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:57,600 INFO L87 Difference]: Start difference. First operand 2449 states and 3952 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:58,079 INFO L93 Difference]: Finished difference Result 6101 states and 9842 transitions. [2024-11-28 04:59:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:58,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 553 [2024-11-28 04:59:58,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:58,107 INFO L225 Difference]: With dead ends: 6101 [2024-11-28 04:59:58,107 INFO L226 Difference]: Without dead ends: 3655 [2024-11-28 04:59:58,117 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 04:59:58,118 INFO L435 NwaCegarLoop]: 675 mSDtfsCounter, 222 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:58,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1132 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:59:58,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2024-11-28 04:59:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3645. [2024-11-28 04:59:58,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3645 states, 2836 states have (on average 1.5133991537376588) internal successors, (4292), 2844 states have internal predecessors, (4292), 792 states have call successors, (792), 16 states have call predecessors, (792), 16 states have return successors, (792), 784 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-28 04:59:58,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 5876 transitions. [2024-11-28 04:59:58,530 INFO L78 Accepts]: Start accepts. Automaton has 3645 states and 5876 transitions. Word has length 553 [2024-11-28 04:59:58,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:58,531 INFO L471 AbstractCegarLoop]: Abstraction has 3645 states and 5876 transitions. [2024-11-28 04:59:58,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:58,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3645 states and 5876 transitions. [2024-11-28 04:59:58,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2024-11-28 04:59:58,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:58,543 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:58,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:59:58,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:58,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:58,544 INFO L85 PathProgramCache]: Analyzing trace with hash 525347985, now seen corresponding path program 1 times [2024-11-28 04:59:58,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:58,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772948192] [2024-11-28 04:59:58,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:58,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 04:59:59,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:59,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772948192] [2024-11-28 04:59:59,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772948192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:59,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:59,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:59,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026925556] [2024-11-28 04:59:59,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:59,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:59,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:59,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:59,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:59,109 INFO L87 Difference]: Start difference. First operand 3645 states and 5876 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 04:59:59,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:59,604 INFO L93 Difference]: Finished difference Result 10081 states and 16246 transitions. [2024-11-28 04:59:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:59,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 554 [2024-11-28 04:59:59,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:59,655 INFO L225 Difference]: With dead ends: 10081 [2024-11-28 04:59:59,655 INFO L226 Difference]: Without dead ends: 6439 [2024-11-28 04:59:59,669 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 04:59:59,670 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 276 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:59,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1068 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:59:59,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2024-11-28 05:00:00,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 6429. [2024-11-28 05:00:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6429 states, 5116 states have (on average 1.5191555903049256) internal successors, (7772), 5140 states have internal predecessors, (7772), 1280 states have call successors, (1280), 32 states have call predecessors, (1280), 32 states have return successors, (1280), 1256 states have call predecessors, (1280), 1280 states have call successors, (1280) [2024-11-28 05:00:00,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6429 states to 6429 states and 10332 transitions. [2024-11-28 05:00:00,520 INFO L78 Accepts]: Start accepts. Automaton has 6429 states and 10332 transitions. Word has length 554 [2024-11-28 05:00:00,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:00,522 INFO L471 AbstractCegarLoop]: Abstraction has 6429 states and 10332 transitions. [2024-11-28 05:00:00,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:00,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6429 states and 10332 transitions. [2024-11-28 05:00:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2024-11-28 05:00:00,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:00,551 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:00,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:00:00,551 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:00,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash 642923533, now seen corresponding path program 1 times [2024-11-28 05:00:00,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:00,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928863426] [2024-11-28 05:00:00,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:00,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 05:00:01,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928863426] [2024-11-28 05:00:01,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928863426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:01,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:01,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:00:01,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605040970] [2024-11-28 05:00:01,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:01,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:01,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:01,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:01,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:01,074 INFO L87 Difference]: Start difference. First operand 6429 states and 10332 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:02,056 INFO L93 Difference]: Finished difference Result 19121 states and 30702 transitions. [2024-11-28 05:00:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:02,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 554 [2024-11-28 05:00:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:02,169 INFO L225 Difference]: With dead ends: 19121 [2024-11-28 05:00:02,170 INFO L226 Difference]: Without dead ends: 12695 [2024-11-28 05:00:02,191 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 05:00:02,192 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 460 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:02,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1299 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12695 states. [2024-11-28 05:00:02,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12695 to 7437. [2024-11-28 05:00:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7437 states, 6124 states have (on average 1.5408229915088179) internal successors, (9436), 6148 states have internal predecessors, (9436), 1280 states have call successors, (1280), 32 states have call predecessors, (1280), 32 states have return successors, (1280), 1256 states have call predecessors, (1280), 1280 states have call successors, (1280) [2024-11-28 05:00:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7437 states to 7437 states and 11996 transitions. [2024-11-28 05:00:03,058 INFO L78 Accepts]: Start accepts. Automaton has 7437 states and 11996 transitions. Word has length 554 [2024-11-28 05:00:03,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:03,059 INFO L471 AbstractCegarLoop]: Abstraction has 7437 states and 11996 transitions. [2024-11-28 05:00:03,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:03,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7437 states and 11996 transitions. [2024-11-28 05:00:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2024-11-28 05:00:03,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:03,074 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:03,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:00:03,074 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:03,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:03,075 INFO L85 PathProgramCache]: Analyzing trace with hash 704963147, now seen corresponding path program 1 times [2024-11-28 05:00:03,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:03,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329858202] [2024-11-28 05:00:03,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:03,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 05:00:04,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:04,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329858202] [2024-11-28 05:00:04,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329858202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:04,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:04,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:00:04,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417535725] [2024-11-28 05:00:04,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:04,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:00:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:04,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:00:04,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:00:04,004 INFO L87 Difference]: Start difference. First operand 7437 states and 11996 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:04,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:04,495 INFO L93 Difference]: Finished difference Result 14935 states and 24117 transitions. [2024-11-28 05:00:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:00:04,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 554 [2024-11-28 05:00:04,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:04,536 INFO L225 Difference]: With dead ends: 14935 [2024-11-28 05:00:04,537 INFO L226 Difference]: Without dead ends: 7501 [2024-11-28 05:00:04,557 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 05:00:04,558 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:04,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 982 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:00:04,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2024-11-28 05:00:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7501. [2024-11-28 05:00:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7501 states, 6188 states have (on average 1.535229476405947) internal successors, (9500), 6212 states have internal predecessors, (9500), 1280 states have call successors, (1280), 32 states have call predecessors, (1280), 32 states have return successors, (1280), 1256 states have call predecessors, (1280), 1280 states have call successors, (1280) [2024-11-28 05:00:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 12060 transitions. [2024-11-28 05:00:05,140 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 12060 transitions. Word has length 554 [2024-11-28 05:00:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:05,141 INFO L471 AbstractCegarLoop]: Abstraction has 7501 states and 12060 transitions. [2024-11-28 05:00:05,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:05,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 12060 transitions. [2024-11-28 05:00:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2024-11-28 05:00:05,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:05,156 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:05,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:00:05,157 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:05,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:05,157 INFO L85 PathProgramCache]: Analyzing trace with hash -469239444, now seen corresponding path program 1 times [2024-11-28 05:00:05,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:05,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056675705] [2024-11-28 05:00:05,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:05,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 05:00:08,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:08,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056675705] [2024-11-28 05:00:08,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056675705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:08,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:08,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:08,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650552101] [2024-11-28 05:00:08,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:08,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:08,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:08,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:08,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:08,454 INFO L87 Difference]: Start difference. First operand 7501 states and 12060 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:10,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:10,832 INFO L93 Difference]: Finished difference Result 29995 states and 48231 transitions. [2024-11-28 05:00:10,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 555 [2024-11-28 05:00:10,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:10,922 INFO L225 Difference]: With dead ends: 29995 [2024-11-28 05:00:10,923 INFO L226 Difference]: Without dead ends: 22497 [2024-11-28 05:00:10,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 05:00:10,947 INFO L435 NwaCegarLoop]: 706 mSDtfsCounter, 925 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:10,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1720 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:00:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22497 states. [2024-11-28 05:00:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22497 to 22477. [2024-11-28 05:00:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22477 states, 18540 states have (on average 1.5333333333333334) internal successors, (28428), 18612 states have internal predecessors, (28428), 3840 states have call successors, (3840), 96 states have call predecessors, (3840), 96 states have return successors, (3840), 3768 states have call predecessors, (3840), 3840 states have call successors, (3840) [2024-11-28 05:00:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22477 states to 22477 states and 36108 transitions. [2024-11-28 05:00:12,853 INFO L78 Accepts]: Start accepts. Automaton has 22477 states and 36108 transitions. Word has length 555 [2024-11-28 05:00:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:12,854 INFO L471 AbstractCegarLoop]: Abstraction has 22477 states and 36108 transitions. [2024-11-28 05:00:12,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:12,855 INFO L276 IsEmpty]: Start isEmpty. Operand 22477 states and 36108 transitions. [2024-11-28 05:00:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2024-11-28 05:00:12,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:12,893 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:12,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:00:12,894 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:12,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash 746914282, now seen corresponding path program 1 times [2024-11-28 05:00:12,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:12,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576623370] [2024-11-28 05:00:12,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:12,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 05:00:15,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576623370] [2024-11-28 05:00:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576623370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:15,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:15,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344242845] [2024-11-28 05:00:15,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:15,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:15,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:15,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:15,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:15,060 INFO L87 Difference]: Start difference. First operand 22477 states and 36108 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:19,781 INFO L93 Difference]: Finished difference Result 67401 states and 108294 transitions. [2024-11-28 05:00:19,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:19,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 555 [2024-11-28 05:00:19,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:19,972 INFO L225 Difference]: With dead ends: 67401 [2024-11-28 05:00:19,973 INFO L226 Difference]: Without dead ends: 44927 [2024-11-28 05:00:20,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 05:00:20,024 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 626 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:20,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1879 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:00:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44927 states. [2024-11-28 05:00:24,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44927 to 44913. [2024-11-28 05:00:24,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44913 states, 37040 states have (on average 1.531317494600432) internal successors, (56720), 37184 states have internal predecessors, (56720), 7680 states have call successors, (7680), 192 states have call predecessors, (7680), 192 states have return successors, (7680), 7536 states have call predecessors, (7680), 7680 states have call successors, (7680) [2024-11-28 05:00:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44913 states to 44913 states and 72080 transitions. [2024-11-28 05:00:24,353 INFO L78 Accepts]: Start accepts. Automaton has 44913 states and 72080 transitions. Word has length 555 [2024-11-28 05:00:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:24,355 INFO L471 AbstractCegarLoop]: Abstraction has 44913 states and 72080 transitions. [2024-11-28 05:00:24,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:24,356 INFO L276 IsEmpty]: Start isEmpty. Operand 44913 states and 72080 transitions. [2024-11-28 05:00:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2024-11-28 05:00:24,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:24,432 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:24,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:00:24,433 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:24,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:24,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1803987306, now seen corresponding path program 1 times [2024-11-28 05:00:24,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:24,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055396659] [2024-11-28 05:00:24,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:24,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 05:00:27,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:27,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055396659] [2024-11-28 05:00:27,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055396659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:27,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:27,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:27,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627568028] [2024-11-28 05:00:27,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:27,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:27,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:27,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:27,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:27,536 INFO L87 Difference]: Start difference. First operand 44913 states and 72080 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:31,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:31,209 INFO L93 Difference]: Finished difference Result 113151 states and 181844 transitions. [2024-11-28 05:00:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 555 [2024-11-28 05:00:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:31,483 INFO L225 Difference]: With dead ends: 113151 [2024-11-28 05:00:31,484 INFO L226 Difference]: Without dead ends: 68241 [2024-11-28 05:00:31,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:31,564 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 413 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:31,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1466 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:00:31,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68241 states. [2024-11-28 05:00:36,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68241 to 45067. [2024-11-28 05:00:36,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45067 states, 37112 states have (on average 1.530448372494072) internal successors, (56798), 37256 states have internal predecessors, (56798), 7760 states have call successors, (7760), 194 states have call predecessors, (7760), 194 states have return successors, (7760), 7616 states have call predecessors, (7760), 7760 states have call successors, (7760) [2024-11-28 05:00:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45067 states to 45067 states and 72318 transitions. [2024-11-28 05:00:36,229 INFO L78 Accepts]: Start accepts. Automaton has 45067 states and 72318 transitions. Word has length 555 [2024-11-28 05:00:36,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:36,230 INFO L471 AbstractCegarLoop]: Abstraction has 45067 states and 72318 transitions. [2024-11-28 05:00:36,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 45067 states and 72318 transitions. [2024-11-28 05:00:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-11-28 05:00:36,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:36,265 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:36,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:00:36,265 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:36,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1305644076, now seen corresponding path program 1 times [2024-11-28 05:00:36,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:36,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525947795] [2024-11-28 05:00:36,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:36,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 05:00:39,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525947795] [2024-11-28 05:00:39,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525947795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:39,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:39,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:00:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937576232] [2024-11-28 05:00:39,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:39,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:39,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:39,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:39,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:39,127 INFO L87 Difference]: Start difference. First operand 45067 states and 72318 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:43,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:00:46,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:46,557 INFO L93 Difference]: Finished difference Result 135875 states and 218610 transitions. [2024-11-28 05:00:46,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:00:46,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 556 [2024-11-28 05:00:46,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:46,881 INFO L225 Difference]: With dead ends: 135875 [2024-11-28 05:00:46,881 INFO L226 Difference]: Without dead ends: 90965 [2024-11-28 05:00:47,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:47,008 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 900 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:47,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 1552 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 05:00:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90965 states. [2024-11-28 05:00:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90965 to 50615. [2024-11-28 05:00:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50615 states, 42660 states have (on average 1.5412564463197373) internal successors, (65750), 42804 states have internal predecessors, (65750), 7760 states have call successors, (7760), 194 states have call predecessors, (7760), 194 states have return successors, (7760), 7616 states have call predecessors, (7760), 7760 states have call successors, (7760) [2024-11-28 05:00:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50615 states to 50615 states and 81270 transitions. [2024-11-28 05:00:51,215 INFO L78 Accepts]: Start accepts. Automaton has 50615 states and 81270 transitions. Word has length 556 [2024-11-28 05:00:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:51,216 INFO L471 AbstractCegarLoop]: Abstraction has 50615 states and 81270 transitions. [2024-11-28 05:00:51,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:00:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 50615 states and 81270 transitions. [2024-11-28 05:00:51,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-11-28 05:00:51,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:51,280 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:51,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:00:51,280 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:51,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:51,281 INFO L85 PathProgramCache]: Analyzing trace with hash -888247470, now seen corresponding path program 1 times [2024-11-28 05:00:51,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:51,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588744909] [2024-11-28 05:00:51,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:51,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-28 05:00:54,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:54,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588744909] [2024-11-28 05:00:54,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588744909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:54,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:54,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:54,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134973550] [2024-11-28 05:00:54,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:54,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:54,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:54,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:54,023 INFO L87 Difference]: Start difference. First operand 50615 states and 81270 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-28 05:01:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:00,540 INFO L93 Difference]: Finished difference Result 147157 states and 236701 transitions. [2024-11-28 05:01:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:01:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 556 [2024-11-28 05:01:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:00,899 INFO L225 Difference]: With dead ends: 147157 [2024-11-28 05:01:00,899 INFO L226 Difference]: Without dead ends: 96699 [2024-11-28 05:01:01,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:01:01,013 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 911 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:01,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 1471 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:01:01,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96699 states.