./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC --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 2907c9b5d215fd99a6a04cc6813259312414b8ebed955ba5e887662f96533409 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:39:36,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:39:37,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:39:37,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:39:37,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:39:37,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:39:37,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:39:37,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:39:37,067 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:39:37,067 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:39:37,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:39:37,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:39:37,068 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:39:37,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:39:37,068 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:39:37,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:39:37,069 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:39:37,070 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:39:37,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:39:37,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:39:37,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:39:37,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:39:37,072 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_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC 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 -> 2907c9b5d215fd99a6a04cc6813259312414b8ebed955ba5e887662f96533409 [2024-11-23 23:39:37,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:39:37,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:39:37,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:39:37,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:39:37,375 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:39:37,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-16.i [2024-11-23 23:39:40,413 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/data/3af2aaa0d/cc118628027644efbccd52f8a3c380f9/FLAG781fc33f4 [2024-11-23 23:39:40,665 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:39:40,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-16.i [2024-11-23 23:39:40,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/data/3af2aaa0d/cc118628027644efbccd52f8a3c380f9/FLAG781fc33f4 [2024-11-23 23:39:40,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/data/3af2aaa0d/cc118628027644efbccd52f8a3c380f9 [2024-11-23 23:39:40,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:39:40,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:39:40,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:39:40,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:39:41,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:39:41,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:39:40" (1/1) ... [2024-11-23 23:39:41,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565b5eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41, skipping insertion in model container [2024-11-23 23:39:41,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:39:40" (1/1) ... [2024-11-23 23:39:41,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:39:41,172 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_a888b517-2683-4f47-8869-185cf60c708b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-16.i[916,929] [2024-11-23 23:39:41,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:39:41,244 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:39:41,258 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_a888b517-2683-4f47-8869-185cf60c708b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-16.i[916,929] [2024-11-23 23:39:41,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:39:41,303 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:39:41,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41 WrapperNode [2024-11-23 23:39:41,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:39:41,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:39:41,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:39:41,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:39:41,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,358 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-11-23 23:39:41,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:39:41,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:39:41,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:39:41,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:39:41,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,406 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]. [2024-11-23 23:39:41,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,416 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:39:41,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:39:41,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:39:41,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:39:41,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (1/1) ... [2024-11-23 23:39:41,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:39:41,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:39:41,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:39:41,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a888b517-2683-4f47-8869-185cf60c708b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:39:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:39:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:39:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:39:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:39:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:39:41,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:39:41,640 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:39:41,643 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:39:41,927 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-23 23:39:41,927 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:39:41,938 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:39:41,938 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:39:41,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:39:41 BoogieIcfgContainer [2024-11-23 23:39:41,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:39:41,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:39:41,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:39:41,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:39:41,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:39:40" (1/3) ... [2024-11-23 23:39:41,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8ece78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:39:41, skipping insertion in model container [2024-11-23 23:39:41,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:39:41" (2/3) ... [2024-11-23 23:39:41,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8ece78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:39:41, skipping insertion in model container [2024-11-23 23:39:41,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:39:41" (3/3) ... [2024-11-23 23:39:41,950 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-16.i [2024-11-23 23:39:41,976 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:39:41,979 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-16.i that has 2 procedures, 60 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:39:42,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:39:42,066 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;@32ff60b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:39:42,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:39:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-23 23:39:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 23:39:42,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:39:42,088 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:39:42,088 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:39:42,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:39:42,093 INFO L85 PathProgramCache]: Analyzing trace with hash -489089695, now seen corresponding path program 1 times [2024-11-23 23:39:42,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:39:42,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868034084] [2024-11-23 23:39:42,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:42,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:39:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:39:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:39:57,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:39:57,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868034084] [2024-11-23 23:39:57,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868034084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:39:57,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:39:57,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:39:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101917876] [2024-11-23 23:39:57,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:39:57,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:39:57,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:39:57,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:39:57,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:39:57,266 INFO L87 Difference]: Start difference. First operand has 60 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:39:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:39:58,691 INFO L93 Difference]: Finished difference Result 143 states and 246 transitions. [2024-11-23 23:39:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:39:58,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 139 [2024-11-23 23:39:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:39:58,700 INFO L225 Difference]: With dead ends: 143 [2024-11-23 23:39:58,700 INFO L226 Difference]: Without dead ends: 86 [2024-11-23 23:39:58,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:39:58,707 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 35 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:39:58,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 343 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:39:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-23 23:39:58,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2024-11-23 23:39:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-23 23:39:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 93 transitions. [2024-11-23 23:39:58,751 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 93 transitions. Word has length 139 [2024-11-23 23:39:58,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:39:58,755 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 93 transitions. [2024-11-23 23:39:58,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:39:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2024-11-23 23:39:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 23:39:58,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:39:58,761 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:39:58,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:39:58,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:39:58,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:39:58,764 INFO L85 PathProgramCache]: Analyzing trace with hash 190968675, now seen corresponding path program 1 times [2024-11-23 23:39:58,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:39:58,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267990674] [2024-11-23 23:39:58,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:58,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:39:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:08,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:40:08,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:40:08,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267990674] [2024-11-23 23:40:08,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267990674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:40:08,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:40:08,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:40:08,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813739292] [2024-11-23 23:40:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:40:08,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:40:08,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:40:08,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:40:08,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:40:08,960 INFO L87 Difference]: Start difference. First operand 63 states and 93 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:10,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:40:10,698 INFO L93 Difference]: Finished difference Result 93 states and 130 transitions. [2024-11-23 23:40:10,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:40:10,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 139 [2024-11-23 23:40:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:40:10,701 INFO L225 Difference]: With dead ends: 93 [2024-11-23 23:40:10,701 INFO L226 Difference]: Without dead ends: 91 [2024-11-23 23:40:10,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:40:10,703 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 33 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:40:10,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 461 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:40:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-23 23:40:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 61. [2024-11-23 23:40:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-23 23:40:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2024-11-23 23:40:10,717 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 90 transitions. Word has length 139 [2024-11-23 23:40:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:40:10,718 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-23 23:40:10,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:10,719 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 90 transitions. [2024-11-23 23:40:10,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:40:10,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:40:10,722 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:40:10,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:40:10,724 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:40:10,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:40:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1634764991, now seen corresponding path program 1 times [2024-11-23 23:40:10,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:40:10,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961873524] [2024-11-23 23:40:10,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:10,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:40:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:40:30,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:40:30,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961873524] [2024-11-23 23:40:30,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961873524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:40:30,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:40:30,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:40:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914019032] [2024-11-23 23:40:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:40:30,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:40:30,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:40:30,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:40:30,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:40:30,575 INFO L87 Difference]: Start difference. First operand 61 states and 90 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:32,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:40:32,809 INFO L93 Difference]: Finished difference Result 96 states and 133 transitions. [2024-11-23 23:40:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:40:32,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-23 23:40:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:40:32,812 INFO L225 Difference]: With dead ends: 96 [2024-11-23 23:40:32,812 INFO L226 Difference]: Without dead ends: 94 [2024-11-23 23:40:32,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:40:32,813 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 39 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:40:32,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 390 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:40:32,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-23 23:40:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 66. [2024-11-23 23:40:32,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-23 23:40:32,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2024-11-23 23:40:32,824 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 98 transitions. Word has length 140 [2024-11-23 23:40:32,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:40:32,824 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-11-23 23:40:32,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:32,825 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 98 transitions. [2024-11-23 23:40:32,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:40:32,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:40:32,827 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:40:32,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:40:32,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:40:32,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:40:32,828 INFO L85 PathProgramCache]: Analyzing trace with hash 357980847, now seen corresponding path program 1 times [2024-11-23 23:40:32,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:40:32,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453159838] [2024-11-23 23:40:32,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:32,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:40:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:40:42,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:40:42,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453159838] [2024-11-23 23:40:42,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453159838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:40:42,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:40:42,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:40:42,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653587272] [2024-11-23 23:40:42,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:40:42,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:40:42,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:40:42,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:40:42,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:40:42,580 INFO L87 Difference]: Start difference. First operand 66 states and 98 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:40:43,812 INFO L93 Difference]: Finished difference Result 157 states and 227 transitions. [2024-11-23 23:40:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:40:43,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-23 23:40:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:40:43,815 INFO L225 Difference]: With dead ends: 157 [2024-11-23 23:40:43,815 INFO L226 Difference]: Without dead ends: 94 [2024-11-23 23:40:43,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:40:43,817 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 33 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:40:43,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 325 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:40:43,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-23 23:40:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 67. [2024-11-23 23:40:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-23 23:40:43,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 99 transitions. [2024-11-23 23:40:43,830 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 99 transitions. Word has length 140 [2024-11-23 23:40:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:40:43,831 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 99 transitions. [2024-11-23 23:40:43,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 99 transitions. [2024-11-23 23:40:43,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:40:43,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:40:43,834 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:40:43,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:40:43,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:40:43,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:40:43,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1241737981, now seen corresponding path program 1 times [2024-11-23 23:40:43,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:40:43,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629565917] [2024-11-23 23:40:43,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:43,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:40:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:40:57,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:40:57,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:40:57,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629565917] [2024-11-23 23:40:57,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629565917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:40:57,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:40:57,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:40:57,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243927596] [2024-11-23 23:40:57,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:40:57,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:40:57,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:40:57,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:40:57,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:40:57,350 INFO L87 Difference]: Start difference. First operand 67 states and 99 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:59,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:40:59,939 INFO L93 Difference]: Finished difference Result 196 states and 290 transitions. [2024-11-23 23:40:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:40:59,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-23 23:40:59,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:40:59,943 INFO L225 Difference]: With dead ends: 196 [2024-11-23 23:40:59,944 INFO L226 Difference]: Without dead ends: 132 [2024-11-23 23:40:59,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:40:59,945 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 67 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:40:59,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 417 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:40:59,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-23 23:40:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 123. [2024-11-23 23:40:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 74 states have internal predecessors, (91), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:40:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 183 transitions. [2024-11-23 23:40:59,966 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 183 transitions. Word has length 140 [2024-11-23 23:40:59,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:40:59,967 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 183 transitions. [2024-11-23 23:40:59,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:40:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 183 transitions. [2024-11-23 23:40:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:40:59,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:40:59,970 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:40:59,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:40:59,970 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:40:59,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:40:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash -35046163, now seen corresponding path program 1 times [2024-11-23 23:40:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:40:59,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148348696] [2024-11-23 23:40:59,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:59,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:41:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:41:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:41:10,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:41:10,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148348696] [2024-11-23 23:41:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148348696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:41:10,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:41:10,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:41:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073260047] [2024-11-23 23:41:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:41:10,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:41:10,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:41:10,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:41:10,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:41:10,134 INFO L87 Difference]: Start difference. First operand 123 states and 183 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:41:11,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:41:11,652 INFO L93 Difference]: Finished difference Result 278 states and 405 transitions. [2024-11-23 23:41:11,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:41:11,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-23 23:41:11,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:41:11,655 INFO L225 Difference]: With dead ends: 278 [2024-11-23 23:41:11,655 INFO L226 Difference]: Without dead ends: 158 [2024-11-23 23:41:11,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:41:11,657 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 37 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:41:11,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 436 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:41:11,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-23 23:41:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 120. [2024-11-23 23:41:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 71 states have internal predecessors, (85), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:41:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 177 transitions. [2024-11-23 23:41:11,679 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 177 transitions. Word has length 140 [2024-11-23 23:41:11,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:41:11,680 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 177 transitions. [2024-11-23 23:41:11,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:41:11,680 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 177 transitions. [2024-11-23 23:41:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-23 23:41:11,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:41:11,682 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:41:11,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:41:11,683 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:41:11,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:41:11,683 INFO L85 PathProgramCache]: Analyzing trace with hash -811161609, now seen corresponding path program 1 times [2024-11-23 23:41:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:41:11,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871601155] [2024-11-23 23:41:11,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:41:11,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:41:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:41:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:41:30,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:41:30,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871601155] [2024-11-23 23:41:30,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871601155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:41:30,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:41:30,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:41:30,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806957618] [2024-11-23 23:41:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:41:30,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:41:30,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:41:30,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:41:30,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:41:30,968 INFO L87 Difference]: Start difference. First operand 120 states and 177 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:41:34,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:41:34,601 INFO L93 Difference]: Finished difference Result 161 states and 222 transitions. [2024-11-23 23:41:34,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:41:34,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-23 23:41:34,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:41:34,603 INFO L225 Difference]: With dead ends: 161 [2024-11-23 23:41:34,603 INFO L226 Difference]: Without dead ends: 159 [2024-11-23 23:41:34,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:41:34,604 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 49 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:41:34,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 431 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:41:34,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-23 23:41:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 121. [2024-11-23 23:41:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 72 states have internal predecessors, (87), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:41:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 179 transitions. [2024-11-23 23:41:34,626 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 179 transitions. Word has length 141 [2024-11-23 23:41:34,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:41:34,626 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 179 transitions. [2024-11-23 23:41:34,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:41:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 179 transitions. [2024-11-23 23:41:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-23 23:41:34,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:41:34,631 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:41:34,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:41:34,631 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:41:34,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:41:34,632 INFO L85 PathProgramCache]: Analyzing trace with hash -809314567, now seen corresponding path program 1 times [2024-11-23 23:41:34,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:41:34,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502512104] [2024-11-23 23:41:34,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:41:34,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:41:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:41:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:41:52,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:41:52,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502512104] [2024-11-23 23:41:52,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502512104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:41:52,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:41:52,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:41:52,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746107471] [2024-11-23 23:41:52,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:41:52,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:41:52,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:41:52,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:41:52,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:41:52,260 INFO L87 Difference]: Start difference. First operand 121 states and 179 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:41:55,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:41:55,140 INFO L93 Difference]: Finished difference Result 159 states and 220 transitions. [2024-11-23 23:41:55,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:41:55,141 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-23 23:41:55,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:41:55,143 INFO L225 Difference]: With dead ends: 159 [2024-11-23 23:41:55,143 INFO L226 Difference]: Without dead ends: 157 [2024-11-23 23:41:55,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:41:55,144 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 50 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:41:55,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 363 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:41:55,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-23 23:41:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 121. [2024-11-23 23:41:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 72 states have internal predecessors, (87), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:41:55,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 179 transitions. [2024-11-23 23:41:55,162 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 179 transitions. Word has length 141 [2024-11-23 23:41:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:41:55,163 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 179 transitions. [2024-11-23 23:41:55,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:41:55,163 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 179 transitions. [2024-11-23 23:41:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-23 23:41:55,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:41:55,164 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:41:55,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:41:55,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:41:55,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:41:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2124148017, now seen corresponding path program 1 times [2024-11-23 23:41:55,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:41:55,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067349367] [2024-11-23 23:41:55,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:41:55,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:41:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:42:17,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:17,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067349367] [2024-11-23 23:42:17,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067349367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:17,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:17,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:42:17,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334717527] [2024-11-23 23:42:17,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:17,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:42:17,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:17,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:42:17,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:42:17,195 INFO L87 Difference]: Start difference. First operand 121 states and 179 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:42:19,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:42:19,395 INFO L93 Difference]: Finished difference Result 148 states and 209 transitions. [2024-11-23 23:42:19,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:42:19,396 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-23 23:42:19,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:42:19,398 INFO L225 Difference]: With dead ends: 148 [2024-11-23 23:42:19,398 INFO L226 Difference]: Without dead ends: 146 [2024-11-23 23:42:19,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:42:19,399 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 29 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:42:19,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 341 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:42:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-23 23:42:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 125. [2024-11-23 23:42:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 76 states have (on average 1.2236842105263157) internal successors, (93), 76 states have internal predecessors, (93), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:42:19,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 185 transitions. [2024-11-23 23:42:19,414 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 185 transitions. Word has length 141 [2024-11-23 23:42:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:42:19,415 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 185 transitions. [2024-11-23 23:42:19,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:42:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 185 transitions. [2024-11-23 23:42:19,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-23 23:42:19,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:42:19,417 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:42:19,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:42:19,417 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:42:19,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:19,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1469754701, now seen corresponding path program 1 times [2024-11-23 23:42:19,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:19,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484748181] [2024-11-23 23:42:19,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:19,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:42:32,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:32,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484748181] [2024-11-23 23:42:32,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484748181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:32,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:32,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:42:32,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471334755] [2024-11-23 23:42:32,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:32,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:42:32,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:32,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:42:32,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:42:32,729 INFO L87 Difference]: Start difference. First operand 125 states and 185 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:42:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:42:35,633 INFO L93 Difference]: Finished difference Result 134 states and 193 transitions. [2024-11-23 23:42:35,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:42:35,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-23 23:42:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:42:35,635 INFO L225 Difference]: With dead ends: 134 [2024-11-23 23:42:35,635 INFO L226 Difference]: Without dead ends: 132 [2024-11-23 23:42:35,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:42:35,636 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 59 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:42:35,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 388 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:42:35,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-23 23:42:35,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 119. [2024-11-23 23:42:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 70 states have internal predecessors, (85), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:42:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 177 transitions. [2024-11-23 23:42:35,657 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 177 transitions. Word has length 141 [2024-11-23 23:42:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:42:35,657 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 177 transitions. [2024-11-23 23:42:35,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:42:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 177 transitions. [2024-11-23 23:42:35,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 23:42:35,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:42:35,660 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:42:35,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:42:35,661 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:42:35,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1474810309, now seen corresponding path program 1 times [2024-11-23 23:42:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:35,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37454974] [2024-11-23 23:42:35,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:35,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:42:53,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:53,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37454974] [2024-11-23 23:42:53,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37454974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:53,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:53,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:42:53,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422152418] [2024-11-23 23:42:53,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:53,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:42:53,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:53,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:42:53,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:42:53,982 INFO L87 Difference]: Start difference. First operand 119 states and 177 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:42:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:42:56,234 INFO L93 Difference]: Finished difference Result 150 states and 209 transitions. [2024-11-23 23:42:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:42:56,234 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-23 23:42:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:42:56,236 INFO L225 Difference]: With dead ends: 150 [2024-11-23 23:42:56,236 INFO L226 Difference]: Without dead ends: 148 [2024-11-23 23:42:56,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:42:56,237 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 41 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:42:56,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 340 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:42:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-23 23:42:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 120. [2024-11-23 23:42:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:42:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 179 transitions. [2024-11-23 23:42:56,253 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 179 transitions. Word has length 142 [2024-11-23 23:42:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:42:56,254 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 179 transitions. [2024-11-23 23:42:56,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:42:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 179 transitions. [2024-11-23 23:42:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 23:42:56,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:42:56,257 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:42:56,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:42:56,257 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:42:56,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:56,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1476657351, now seen corresponding path program 1 times [2024-11-23 23:42:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:56,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428288548] [2024-11-23 23:42:56,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:56,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:15,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-23 23:43:15,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:15,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428288548] [2024-11-23 23:43:15,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428288548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:15,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:15,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:43:15,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635660083] [2024-11-23 23:43:15,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:15,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:43:15,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:15,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:43:15,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:43:15,033 INFO L87 Difference]: Start difference. First operand 120 states and 179 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:43:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:43:18,088 INFO L93 Difference]: Finished difference Result 148 states and 207 transitions. [2024-11-23 23:43:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:43:18,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-23 23:43:18,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:43:18,089 INFO L225 Difference]: With dead ends: 148 [2024-11-23 23:43:18,089 INFO L226 Difference]: Without dead ends: 146 [2024-11-23 23:43:18,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:43:18,090 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 34 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:43:18,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 461 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 23:43:18,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-23 23:43:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 116. [2024-11-23 23:43:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 67 states have internal predecessors, (80), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:43:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 172 transitions. [2024-11-23 23:43:18,102 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 172 transitions. Word has length 142 [2024-11-23 23:43:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:43:18,102 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 172 transitions. [2024-11-23 23:43:18,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-23 23:43:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 172 transitions. [2024-11-23 23:43:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-23 23:43:18,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:18,107 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:18,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:43:18,107 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:18,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:18,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1528244548, now seen corresponding path program 1 times [2024-11-23 23:43:18,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:18,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235666917] [2024-11-23 23:43:18,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:18,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat