./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47dd68ea39604b487f233f68e029f640f8a21785e687328515d4ba55c65777c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:02:01,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:02:01,714 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 23:02:01,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:02:01,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:02:01,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:02:01,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:02:01,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:02:01,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:02:01,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:02:01,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:02:01,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:02:01,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:02:01,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:02:01,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:02:01,744 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:02:01,745 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:02:01,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:02:01,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:02:01,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:02:01,746 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:02:01,746 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_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47dd68ea39604b487f233f68e029f640f8a21785e687328515d4ba55c65777c4 [2024-12-01 23:02:01,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:02:01,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:02:01,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:02:01,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:02:01,988 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:02:01,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i [2024-12-01 23:02:04,745 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/data/05f811f2f/96ef9aaf45e54e01a466a7f4c45fb1be/FLAG56787f120 [2024-12-01 23:02:04,925 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:02:04,926 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i [2024-12-01 23:02:04,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/data/05f811f2f/96ef9aaf45e54e01a466a7f4c45fb1be/FLAG56787f120 [2024-12-01 23:02:04,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/data/05f811f2f/96ef9aaf45e54e01a466a7f4c45fb1be [2024-12-01 23:02:04,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:02:04,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:02:04,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:02:04,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:02:04,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:02:04,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:02:04" (1/1) ... [2024-12-01 23:02:04,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c115a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:04, skipping insertion in model container [2024-12-01 23:02:04,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:02:04" (1/1) ... [2024-12-01 23:02:04,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:02:05,078 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_db73f616-b7c8-4489-9e20-309245ee3354/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i[915,928] [2024-12-01 23:02:05,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:02:05,163 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:02:05,171 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_db73f616-b7c8-4489-9e20-309245ee3354/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-81.i[915,928] [2024-12-01 23:02:05,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:02:05,226 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:02:05,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05 WrapperNode [2024-12-01 23:02:05,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:02:05,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:02:05,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:02:05,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:02:05,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,282 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 307 [2024-12-01 23:02:05,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:02:05,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:02:05,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:02:05,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:02:05,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,315 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 23:02:05,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:02:05,348 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:02:05,348 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:02:05,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:02:05,349 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (1/1) ... [2024-12-01 23:02:05,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:02:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:02:05,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:02:05,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:02:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:02:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 23:02:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 23:02:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:02:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:02:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:02:05,472 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:02:05,474 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:02:05,937 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-01 23:02:05,937 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:02:05,948 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:02:05,949 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 23:02:05,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:02:05 BoogieIcfgContainer [2024-12-01 23:02:05,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:02:05,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:02:05,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:02:05,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:02:05,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:02:04" (1/3) ... [2024-12-01 23:02:05,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64965372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:02:05, skipping insertion in model container [2024-12-01 23:02:05,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:02:05" (2/3) ... [2024-12-01 23:02:05,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64965372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:02:05, skipping insertion in model container [2024-12-01 23:02:05,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:02:05" (3/3) ... [2024-12-01 23:02:05,958 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-81.i [2024-12-01 23:02:05,969 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:02:05,971 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-81.i that has 2 procedures, 134 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 23:02:06,017 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:02:06,028 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;@23b5fc0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:02:06,028 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 23:02:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 82 states have internal predecessors, (115), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-01 23:02:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-01 23:02:06,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:06,046 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:06,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:06,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash 827940478, now seen corresponding path program 1 times [2024-12-01 23:02:06,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:06,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873446481] [2024-12-01 23:02:06,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:06,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2024-12-01 23:02:06,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873446481] [2024-12-01 23:02:06,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873446481] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:02:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059179105] [2024-12-01 23:02:06,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:06,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:02:06,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:02:06,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:02:06,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 23:02:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:06,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 23:02:06,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:02:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2024-12-01 23:02:06,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:02:06,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059179105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:06,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:02:06,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-01 23:02:06,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357484388] [2024-12-01 23:02:06,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:06,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 23:02:06,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:06,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 23:02:06,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 23:02:06,697 INFO L87 Difference]: Start difference. First operand has 134 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 82 states have internal predecessors, (115), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:02:06,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:06,736 INFO L93 Difference]: Finished difference Result 261 states and 474 transitions. [2024-12-01 23:02:06,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 23:02:06,737 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 306 [2024-12-01 23:02:06,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:06,745 INFO L225 Difference]: With dead ends: 261 [2024-12-01 23:02:06,745 INFO L226 Difference]: Without dead ends: 130 [2024-12-01 23:02:06,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 23:02:06,751 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:06,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:02:06,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-12-01 23:02:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-12-01 23:02:06,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 78 states have internal predecessors, (108), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-01 23:02:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 208 transitions. [2024-12-01 23:02:06,800 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 208 transitions. Word has length 306 [2024-12-01 23:02:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:06,800 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 208 transitions. [2024-12-01 23:02:06,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:02:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 208 transitions. [2024-12-01 23:02:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-01 23:02:06,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:06,808 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:06,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 23:02:07,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-01 23:02:07,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:07,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:07,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1693238838, now seen corresponding path program 1 times [2024-12-01 23:02:07,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882070205] [2024-12-01 23:02:07,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:08,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:08,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882070205] [2024-12-01 23:02:08,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882070205] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:08,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:08,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:02:08,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463537847] [2024-12-01 23:02:08,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:08,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:02:08,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:08,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:02:08,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:02:08,004 INFO L87 Difference]: Start difference. First operand 130 states and 208 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:08,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:08,394 INFO L93 Difference]: Finished difference Result 385 states and 620 transitions. [2024-12-01 23:02:08,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:02:08,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 306 [2024-12-01 23:02:08,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:08,400 INFO L225 Difference]: With dead ends: 385 [2024-12-01 23:02:08,400 INFO L226 Difference]: Without dead ends: 258 [2024-12-01 23:02:08,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:02:08,402 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 122 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:08,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 613 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:02:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-12-01 23:02:08,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 256. [2024-12-01 23:02:08,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 153 states have (on average 1.392156862745098) internal successors, (213), 153 states have internal predecessors, (213), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-01 23:02:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 413 transitions. [2024-12-01 23:02:08,469 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 413 transitions. Word has length 306 [2024-12-01 23:02:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:08,470 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 413 transitions. [2024-12-01 23:02:08,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 413 transitions. [2024-12-01 23:02:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-01 23:02:08,476 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:08,476 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:08,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:02:08,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:08,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1402096609, now seen corresponding path program 1 times [2024-12-01 23:02:08,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:08,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648248974] [2024-12-01 23:02:08,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:08,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:09,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:09,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648248974] [2024-12-01 23:02:09,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648248974] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:09,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:09,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:02:09,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187403450] [2024-12-01 23:02:09,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:09,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:02:09,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:09,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:02:09,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:02:09,788 INFO L87 Difference]: Start difference. First operand 256 states and 413 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:10,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:10,766 INFO L93 Difference]: Finished difference Result 959 states and 1522 transitions. [2024-12-01 23:02:10,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:02:10,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 307 [2024-12-01 23:02:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:10,773 INFO L225 Difference]: With dead ends: 959 [2024-12-01 23:02:10,773 INFO L226 Difference]: Without dead ends: 706 [2024-12-01 23:02:10,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:02:10,775 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 434 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:10,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 671 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-01 23:02:10,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-12-01 23:02:10,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 270. [2024-12-01 23:02:10,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 165 states have (on average 1.387878787878788) internal successors, (229), 165 states have internal predecessors, (229), 100 states have call successors, (100), 4 states have call predecessors, (100), 4 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-01 23:02:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 429 transitions. [2024-12-01 23:02:10,842 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 429 transitions. Word has length 307 [2024-12-01 23:02:10,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:10,842 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 429 transitions. [2024-12-01 23:02:10,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:10,843 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 429 transitions. [2024-12-01 23:02:10,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-01 23:02:10,845 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:10,846 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:10,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:02:10,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:10,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash 364163055, now seen corresponding path program 1 times [2024-12-01 23:02:10,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:10,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992666483] [2024-12-01 23:02:10,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:10,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:11,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:11,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992666483] [2024-12-01 23:02:11,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992666483] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:11,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:11,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:02:11,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49248549] [2024-12-01 23:02:11,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:11,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:02:11,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:11,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:02:11,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:02:11,184 INFO L87 Difference]: Start difference. First operand 270 states and 429 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:11,325 INFO L93 Difference]: Finished difference Result 605 states and 952 transitions. [2024-12-01 23:02:11,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:02:11,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 307 [2024-12-01 23:02:11,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:11,330 INFO L225 Difference]: With dead ends: 605 [2024-12-01 23:02:11,330 INFO L226 Difference]: Without dead ends: 338 [2024-12-01 23:02:11,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:02:11,331 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 42 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:11,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 614 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:02:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-12-01 23:02:11,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 334. [2024-12-01 23:02:11,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 219 states have (on average 1.3835616438356164) internal successors, (303), 221 states have internal predecessors, (303), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 106 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-01 23:02:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 519 transitions. [2024-12-01 23:02:11,386 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 519 transitions. Word has length 307 [2024-12-01 23:02:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:11,387 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 519 transitions. [2024-12-01 23:02:11,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 519 transitions. [2024-12-01 23:02:11,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-01 23:02:11,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:11,390 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:11,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:02:11,390 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:11,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:11,391 INFO L85 PathProgramCache]: Analyzing trace with hash 757190065, now seen corresponding path program 1 times [2024-12-01 23:02:11,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:11,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883282732] [2024-12-01 23:02:11,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:11,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:25,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:25,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:25,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883282732] [2024-12-01 23:02:25,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883282732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:25,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:25,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:02:25,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382971892] [2024-12-01 23:02:25,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:25,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 23:02:25,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:25,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 23:02:25,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:02:25,426 INFO L87 Difference]: Start difference. First operand 334 states and 519 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:26,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:26,074 INFO L93 Difference]: Finished difference Result 780 states and 1191 transitions. [2024-12-01 23:02:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:02:26,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 307 [2024-12-01 23:02:26,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:26,079 INFO L225 Difference]: With dead ends: 780 [2024-12-01 23:02:26,080 INFO L226 Difference]: Without dead ends: 449 [2024-12-01 23:02:26,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:02:26,082 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 214 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:26,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 735 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 23:02:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-12-01 23:02:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 354. [2024-12-01 23:02:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 239 states have (on average 1.3849372384937237) internal successors, (331), 241 states have internal predecessors, (331), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 106 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-01 23:02:26,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 547 transitions. [2024-12-01 23:02:26,114 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 547 transitions. Word has length 307 [2024-12-01 23:02:26,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:26,115 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 547 transitions. [2024-12-01 23:02:26,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:26,115 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 547 transitions. [2024-12-01 23:02:26,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-01 23:02:26,117 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:26,117 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:26,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:02:26,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:26,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1458254643, now seen corresponding path program 1 times [2024-12-01 23:02:26,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:26,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107744077] [2024-12-01 23:02:26,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:26,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:34,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:34,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107744077] [2024-12-01 23:02:34,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107744077] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:34,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:34,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-01 23:02:34,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535053112] [2024-12-01 23:02:34,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:34,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 23:02:34,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:34,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 23:02:34,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:02:34,173 INFO L87 Difference]: Start difference. First operand 354 states and 547 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:37,217 INFO L93 Difference]: Finished difference Result 1087 states and 1661 transitions. [2024-12-01 23:02:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 23:02:37,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 307 [2024-12-01 23:02:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:37,223 INFO L225 Difference]: With dead ends: 1087 [2024-12-01 23:02:37,223 INFO L226 Difference]: Without dead ends: 736 [2024-12-01 23:02:37,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2024-12-01 23:02:37,225 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 503 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:37,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1031 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-01 23:02:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-12-01 23:02:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 494. [2024-12-01 23:02:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 327 states have (on average 1.4097859327217126) internal successors, (461), 329 states have internal predecessors, (461), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:02:37,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 777 transitions. [2024-12-01 23:02:37,306 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 777 transitions. Word has length 307 [2024-12-01 23:02:37,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:37,307 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 777 transitions. [2024-12-01 23:02:37,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 777 transitions. [2024-12-01 23:02:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-01 23:02:37,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:37,309 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:37,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:02:37,310 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:37,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1015355503, now seen corresponding path program 1 times [2024-12-01 23:02:37,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:37,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428484027] [2024-12-01 23:02:37,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:37,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:38,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428484027] [2024-12-01 23:02:38,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428484027] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:38,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:38,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:02:38,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464662109] [2024-12-01 23:02:38,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:38,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 23:02:38,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:38,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 23:02:38,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:02:38,435 INFO L87 Difference]: Start difference. First operand 494 states and 777 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:02:39,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:39,349 INFO L93 Difference]: Finished difference Result 1033 states and 1595 transitions. [2024-12-01 23:02:39,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:02:39,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 307 [2024-12-01 23:02:39,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:39,353 INFO L225 Difference]: With dead ends: 1033 [2024-12-01 23:02:39,353 INFO L226 Difference]: Without dead ends: 682 [2024-12-01 23:02:39,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-12-01 23:02:39,355 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 345 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:39,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1105 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 23:02:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-12-01 23:02:39,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 506. [2024-12-01 23:02:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 339 states have (on average 1.40117994100295) internal successors, (475), 341 states have internal predecessors, (475), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:02:39,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 791 transitions. [2024-12-01 23:02:39,435 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 791 transitions. Word has length 307 [2024-12-01 23:02:39,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:39,435 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 791 transitions. [2024-12-01 23:02:39,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:02:39,436 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 791 transitions. [2024-12-01 23:02:39,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-01 23:02:39,438 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:39,438 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:39,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:02:39,438 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:39,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash 447137393, now seen corresponding path program 1 times [2024-12-01 23:02:39,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:39,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800763266] [2024-12-01 23:02:39,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:39,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:47,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:47,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800763266] [2024-12-01 23:02:47,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800763266] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:47,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:47,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:02:47,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471360672] [2024-12-01 23:02:47,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:47,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 23:02:47,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:47,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 23:02:47,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:02:47,615 INFO L87 Difference]: Start difference. First operand 506 states and 791 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:48,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:48,409 INFO L93 Difference]: Finished difference Result 931 states and 1435 transitions. [2024-12-01 23:02:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:02:48,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 307 [2024-12-01 23:02:48,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:48,414 INFO L225 Difference]: With dead ends: 931 [2024-12-01 23:02:48,414 INFO L226 Difference]: Without dead ends: 580 [2024-12-01 23:02:48,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:02:48,415 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 155 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:48,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 740 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:02:48,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-12-01 23:02:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 500. [2024-12-01 23:02:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 333 states have (on average 1.4024024024024024) internal successors, (467), 335 states have internal predecessors, (467), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:02:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 783 transitions. [2024-12-01 23:02:48,457 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 783 transitions. Word has length 307 [2024-12-01 23:02:48,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:48,458 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 783 transitions. [2024-12-01 23:02:48,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:02:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 783 transitions. [2024-12-01 23:02:48,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:02:48,459 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:48,459 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:48,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:02:48,460 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:48,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:48,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1581899888, now seen corresponding path program 1 times [2024-12-01 23:02:48,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:48,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586791910] [2024-12-01 23:02:48,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:48,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:02:56,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:02:56,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:02:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586791910] [2024-12-01 23:02:56,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586791910] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:02:56,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:02:56,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-01 23:02:56,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673050549] [2024-12-01 23:02:56,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:02:56,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-01 23:02:56,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:02:56,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-01 23:02:56,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:02:56,031 INFO L87 Difference]: Start difference. First operand 500 states and 783 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:02:57,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:02:57,970 INFO L93 Difference]: Finished difference Result 1177 states and 1794 transitions. [2024-12-01 23:02:57,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-01 23:02:57,971 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 308 [2024-12-01 23:02:57,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:02:57,975 INFO L225 Difference]: With dead ends: 1177 [2024-12-01 23:02:57,975 INFO L226 Difference]: Without dead ends: 826 [2024-12-01 23:02:57,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-12-01 23:02:57,977 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 572 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-01 23:02:57,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1271 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-01 23:02:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-12-01 23:02:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 524. [2024-12-01 23:02:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 357 states have (on average 1.403361344537815) internal successors, (501), 359 states have internal predecessors, (501), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:02:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 817 transitions. [2024-12-01 23:02:58,061 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 817 transitions. Word has length 308 [2024-12-01 23:02:58,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:02:58,061 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 817 transitions. [2024-12-01 23:02:58,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:02:58,062 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 817 transitions. [2024-12-01 23:02:58,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:02:58,063 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:02:58,063 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:02:58,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:02:58,064 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:02:58,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:02:58,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1188872878, now seen corresponding path program 1 times [2024-12-01 23:02:58,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:02:58,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890235823] [2024-12-01 23:02:58,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:02:58,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:02:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:06,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890235823] [2024-12-01 23:03:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890235823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:06,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 23:03:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169362191] [2024-12-01 23:03:06,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:06,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:03:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:06,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:03:06,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:03:06,467 INFO L87 Difference]: Start difference. First operand 524 states and 817 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:09,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:09,561 INFO L93 Difference]: Finished difference Result 1219 states and 1842 transitions. [2024-12-01 23:03:09,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 23:03:09,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 308 [2024-12-01 23:03:09,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:09,566 INFO L225 Difference]: With dead ends: 1219 [2024-12-01 23:03:09,566 INFO L226 Difference]: Without dead ends: 868 [2024-12-01 23:03:09,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-12-01 23:03:09,567 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 252 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:09,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 1153 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-01 23:03:09,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-12-01 23:03:09,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 534. [2024-12-01 23:03:09,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 367 states have (on average 1.4141689373297002) internal successors, (519), 369 states have internal predecessors, (519), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:03:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 835 transitions. [2024-12-01 23:03:09,620 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 835 transitions. Word has length 308 [2024-12-01 23:03:09,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:09,621 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 835 transitions. [2024-12-01 23:03:09,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:09,621 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 835 transitions. [2024-12-01 23:03:09,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:09,623 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:09,623 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:09,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 23:03:09,623 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:09,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash -880835310, now seen corresponding path program 1 times [2024-12-01 23:03:09,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:09,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289488078] [2024-12-01 23:03:09,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:09,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:15,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:15,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289488078] [2024-12-01 23:03:15,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289488078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:15,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:15,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-01 23:03:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787280044] [2024-12-01 23:03:15,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:15,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 23:03:15,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:15,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 23:03:15,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:03:15,855 INFO L87 Difference]: Start difference. First operand 534 states and 835 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:03:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:17,946 INFO L93 Difference]: Finished difference Result 1177 states and 1801 transitions. [2024-12-01 23:03:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-01 23:03:17,947 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 308 [2024-12-01 23:03:17,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:17,950 INFO L225 Difference]: With dead ends: 1177 [2024-12-01 23:03:17,950 INFO L226 Difference]: Without dead ends: 816 [2024-12-01 23:03:17,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2024-12-01 23:03:17,951 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 579 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:17,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1133 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-01 23:03:17,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-12-01 23:03:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 536. [2024-12-01 23:03:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 369 states have (on average 1.4173441734417345) internal successors, (523), 371 states have internal predecessors, (523), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:03:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 839 transitions. [2024-12-01 23:03:18,028 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 839 transitions. Word has length 308 [2024-12-01 23:03:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:18,028 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 839 transitions. [2024-12-01 23:03:18,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:03:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 839 transitions. [2024-12-01 23:03:18,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:18,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:18,030 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:18,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 23:03:18,030 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:18,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash -487808300, now seen corresponding path program 1 times [2024-12-01 23:03:18,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:18,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493710983] [2024-12-01 23:03:18,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:24,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:24,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493710983] [2024-12-01 23:03:24,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493710983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:24,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:24,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-01 23:03:24,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260552411] [2024-12-01 23:03:24,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:24,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 23:03:24,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:24,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 23:03:24,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:03:24,921 INFO L87 Difference]: Start difference. First operand 536 states and 839 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:03:27,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:27,231 INFO L93 Difference]: Finished difference Result 1153 states and 1763 transitions. [2024-12-01 23:03:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 23:03:27,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 308 [2024-12-01 23:03:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:27,234 INFO L225 Difference]: With dead ends: 1153 [2024-12-01 23:03:27,234 INFO L226 Difference]: Without dead ends: 792 [2024-12-01 23:03:27,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2024-12-01 23:03:27,235 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 536 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:27,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1215 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-01 23:03:27,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-12-01 23:03:27,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 534. [2024-12-01 23:03:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 367 states have (on average 1.4141689373297002) internal successors, (519), 369 states have internal predecessors, (519), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:03:27,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 835 transitions. [2024-12-01 23:03:27,284 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 835 transitions. Word has length 308 [2024-12-01 23:03:27,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:27,284 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 835 transitions. [2024-12-01 23:03:27,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:03:27,284 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 835 transitions. [2024-12-01 23:03:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:27,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:27,286 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:27,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 23:03:27,286 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:27,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1701950158, now seen corresponding path program 1 times [2024-12-01 23:03:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:27,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830868961] [2024-12-01 23:03:27,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:27,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:28,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:28,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830868961] [2024-12-01 23:03:28,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830868961] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:28,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:28,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-01 23:03:28,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451947509] [2024-12-01 23:03:28,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:28,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:03:28,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:28,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:03:28,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:03:28,102 INFO L87 Difference]: Start difference. First operand 534 states and 835 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:28,982 INFO L93 Difference]: Finished difference Result 1071 states and 1648 transitions. [2024-12-01 23:03:28,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:03:28,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 308 [2024-12-01 23:03:28,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:28,985 INFO L225 Difference]: With dead ends: 1071 [2024-12-01 23:03:28,985 INFO L226 Difference]: Without dead ends: 710 [2024-12-01 23:03:28,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:03:28,986 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 275 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:28,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 842 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:03:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-12-01 23:03:29,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 536. [2024-12-01 23:03:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 369 states have (on average 1.4173441734417345) internal successors, (523), 371 states have internal predecessors, (523), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:03:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 839 transitions. [2024-12-01 23:03:29,034 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 839 transitions. Word has length 308 [2024-12-01 23:03:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:29,035 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 839 transitions. [2024-12-01 23:03:29,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 839 transitions. [2024-12-01 23:03:29,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:29,036 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:29,036 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:29,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 23:03:29,036 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:29,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1498925550, now seen corresponding path program 1 times [2024-12-01 23:03:29,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:29,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545978946] [2024-12-01 23:03:29,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:29,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:33,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:33,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:33,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545978946] [2024-12-01 23:03:33,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545978946] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:33,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:33,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-01 23:03:33,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228224100] [2024-12-01 23:03:33,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:33,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 23:03:33,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:33,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 23:03:33,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:03:33,951 INFO L87 Difference]: Start difference. First operand 536 states and 839 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:35,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:35,949 INFO L93 Difference]: Finished difference Result 1055 states and 1622 transitions. [2024-12-01 23:03:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 23:03:35,950 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 308 [2024-12-01 23:03:35,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:35,953 INFO L225 Difference]: With dead ends: 1055 [2024-12-01 23:03:35,953 INFO L226 Difference]: Without dead ends: 694 [2024-12-01 23:03:35,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-12-01 23:03:35,954 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 434 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:35,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1088 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-01 23:03:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-12-01 23:03:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 530. [2024-12-01 23:03:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 363 states have (on average 1.418732782369146) internal successors, (515), 365 states have internal predecessors, (515), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:03:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 831 transitions. [2024-12-01 23:03:36,010 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 831 transitions. Word has length 308 [2024-12-01 23:03:36,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:36,010 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 831 transitions. [2024-12-01 23:03:36,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:36,011 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 831 transitions. [2024-12-01 23:03:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:36,012 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:36,012 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:36,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 23:03:36,012 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:36,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:36,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1433203730, now seen corresponding path program 1 times [2024-12-01 23:03:36,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:36,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429377390] [2024-12-01 23:03:36,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:36,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429377390] [2024-12-01 23:03:44,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429377390] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:44,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:44,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 23:03:44,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375968973] [2024-12-01 23:03:44,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:44,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:03:44,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:44,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:03:44,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:03:44,597 INFO L87 Difference]: Start difference. First operand 530 states and 831 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:45,754 INFO L93 Difference]: Finished difference Result 1113 states and 1711 transitions. [2024-12-01 23:03:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 23:03:45,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 308 [2024-12-01 23:03:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:45,758 INFO L225 Difference]: With dead ends: 1113 [2024-12-01 23:03:45,758 INFO L226 Difference]: Without dead ends: 752 [2024-12-01 23:03:45,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-12-01 23:03:45,759 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 263 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:45,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 950 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 23:03:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-12-01 23:03:45,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 534. [2024-12-01 23:03:45,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 367 states have (on average 1.4250681198910082) internal successors, (523), 369 states have internal predecessors, (523), 158 states have call successors, (158), 8 states have call predecessors, (158), 8 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-01 23:03:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 839 transitions. [2024-12-01 23:03:45,811 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 839 transitions. Word has length 308 [2024-12-01 23:03:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:45,812 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 839 transitions. [2024-12-01 23:03:45,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 839 transitions. [2024-12-01 23:03:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:45,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:45,814 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:45,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 23:03:45,814 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:45,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:45,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1826230740, now seen corresponding path program 1 times [2024-12-01 23:03:45,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:45,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795947379] [2024-12-01 23:03:45,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:45,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:46,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:46,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795947379] [2024-12-01 23:03:46,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795947379] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:46,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:46,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:03:46,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217205098] [2024-12-01 23:03:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:46,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:03:46,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:46,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:03:46,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:03:46,014 INFO L87 Difference]: Start difference. First operand 534 states and 839 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:46,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:46,109 INFO L93 Difference]: Finished difference Result 971 states and 1501 transitions. [2024-12-01 23:03:46,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:03:46,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 308 [2024-12-01 23:03:46,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:46,113 INFO L225 Difference]: With dead ends: 971 [2024-12-01 23:03:46,113 INFO L226 Difference]: Without dead ends: 590 [2024-12-01 23:03:46,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:03:46,114 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 61 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:46,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 614 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:03:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-12-01 23:03:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 504. [2024-12-01 23:03:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 344 states have (on average 1.4244186046511629) internal successors, (490), 344 states have internal predecessors, (490), 150 states have call successors, (150), 9 states have call predecessors, (150), 9 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:03:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 790 transitions. [2024-12-01 23:03:46,169 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 790 transitions. Word has length 308 [2024-12-01 23:03:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:46,169 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 790 transitions. [2024-12-01 23:03:46,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 790 transitions. [2024-12-01 23:03:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:46,171 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:46,171 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:46,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 23:03:46,171 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:46,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:46,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2134268308, now seen corresponding path program 1 times [2024-12-01 23:03:46,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:46,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224731743] [2024-12-01 23:03:46,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:46,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:52,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:52,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224731743] [2024-12-01 23:03:52,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224731743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:52,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:52,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-01 23:03:52,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539166330] [2024-12-01 23:03:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:52,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 23:03:52,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:52,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 23:03:52,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:03:52,008 INFO L87 Difference]: Start difference. First operand 504 states and 790 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:03:54,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:54,340 INFO L93 Difference]: Finished difference Result 1071 states and 1634 transitions. [2024-12-01 23:03:54,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 23:03:54,341 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 308 [2024-12-01 23:03:54,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:54,344 INFO L225 Difference]: With dead ends: 1071 [2024-12-01 23:03:54,344 INFO L226 Difference]: Without dead ends: 724 [2024-12-01 23:03:54,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-12-01 23:03:54,345 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 453 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:54,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1248 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-01 23:03:54,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-12-01 23:03:54,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 512. [2024-12-01 23:03:54,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 352 states have (on average 1.4318181818181819) internal successors, (504), 352 states have internal predecessors, (504), 150 states have call successors, (150), 9 states have call predecessors, (150), 9 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:03:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 804 transitions. [2024-12-01 23:03:54,424 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 804 transitions. Word has length 308 [2024-12-01 23:03:54,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:54,425 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 804 transitions. [2024-12-01 23:03:54,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-01 23:03:54,425 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 804 transitions. [2024-12-01 23:03:54,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:54,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:54,427 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:54,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 23:03:54,427 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:54,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:54,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1691369168, now seen corresponding path program 1 times [2024-12-01 23:03:54,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:54,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732711323] [2024-12-01 23:03:54,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:54,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:03:55,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:03:55,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:03:55,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732711323] [2024-12-01 23:03:55,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732711323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:03:55,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:03:55,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-01 23:03:55,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028060138] [2024-12-01 23:03:55,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:03:55,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 23:03:55,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:03:55,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 23:03:55,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:03:55,166 INFO L87 Difference]: Start difference. First operand 512 states and 804 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:03:55,781 INFO L93 Difference]: Finished difference Result 937 states and 1453 transitions. [2024-12-01 23:03:55,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:03:55,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 308 [2024-12-01 23:03:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:03:55,784 INFO L225 Difference]: With dead ends: 937 [2024-12-01 23:03:55,784 INFO L226 Difference]: Without dead ends: 590 [2024-12-01 23:03:55,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:03:55,785 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 208 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:03:55,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 779 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 23:03:55,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-12-01 23:03:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 516. [2024-12-01 23:03:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 356 states have (on average 1.4213483146067416) internal successors, (506), 356 states have internal predecessors, (506), 150 states have call successors, (150), 9 states have call predecessors, (150), 9 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:03:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 806 transitions. [2024-12-01 23:03:55,856 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 806 transitions. Word has length 308 [2024-12-01 23:03:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:03:55,857 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 806 transitions. [2024-12-01 23:03:55,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:03:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 806 transitions. [2024-12-01 23:03:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-01 23:03:55,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:03:55,859 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:03:55,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 23:03:55,859 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:03:55,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:03:55,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1123151058, now seen corresponding path program 1 times [2024-12-01 23:03:55,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:03:55,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692876346] [2024-12-01 23:03:55,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:03:55,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:03:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:04:03,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:04:03,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:04:03,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692876346] [2024-12-01 23:04:03,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692876346] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:04:03,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:04:03,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 23:04:03,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015637979] [2024-12-01 23:04:03,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:04:03,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:04:03,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:04:03,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:04:03,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:04:03,573 INFO L87 Difference]: Start difference. First operand 516 states and 806 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:04:04,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:04:04,060 INFO L93 Difference]: Finished difference Result 953 states and 1468 transitions. [2024-12-01 23:04:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 23:04:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 308 [2024-12-01 23:04:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:04:04,064 INFO L225 Difference]: With dead ends: 953 [2024-12-01 23:04:04,064 INFO L226 Difference]: Without dead ends: 606 [2024-12-01 23:04:04,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:04:04,065 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 175 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:04:04,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 779 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:04:04,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-12-01 23:04:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 510. [2024-12-01 23:04:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 350 states have (on average 1.4228571428571428) internal successors, (498), 350 states have internal predecessors, (498), 150 states have call successors, (150), 9 states have call predecessors, (150), 9 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:04:04,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 798 transitions. [2024-12-01 23:04:04,111 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 798 transitions. Word has length 308 [2024-12-01 23:04:04,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:04:04,111 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 798 transitions. [2024-12-01 23:04:04,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:04:04,112 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 798 transitions. [2024-12-01 23:04:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-01 23:04:04,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:04:04,114 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:04:04,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-01 23:04:04,114 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:04:04,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:04:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 976031916, now seen corresponding path program 1 times [2024-12-01 23:04:04,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:04:04,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512601340] [2024-12-01 23:04:04,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:04:04,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:04:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:31,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:05:31,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:31,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512601340] [2024-12-01 23:05:31,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512601340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:31,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:31,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:05:31,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118365311] [2024-12-01 23:05:31,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:31,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 23:05:31,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:31,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 23:05:31,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:05:31,893 INFO L87 Difference]: Start difference. First operand 510 states and 798 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:05:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:33,569 INFO L93 Difference]: Finished difference Result 606 states and 920 transitions. [2024-12-01 23:05:33,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:05:33,570 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 309 [2024-12-01 23:05:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:33,572 INFO L225 Difference]: With dead ends: 606 [2024-12-01 23:05:33,572 INFO L226 Difference]: Without dead ends: 604 [2024-12-01 23:05:33,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:05:33,573 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 112 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:33,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 944 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:05:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-12-01 23:05:33,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 544. [2024-12-01 23:05:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 382 states have (on average 1.418848167539267) internal successors, (542), 382 states have internal predecessors, (542), 150 states have call successors, (150), 11 states have call predecessors, (150), 11 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:05:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 842 transitions. [2024-12-01 23:05:33,664 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 842 transitions. Word has length 309 [2024-12-01 23:05:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:33,664 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 842 transitions. [2024-12-01 23:05:33,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:05:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 842 transitions. [2024-12-01 23:05:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-01 23:05:33,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:33,666 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:33,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 23:05:33,666 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:33,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1820323597, now seen corresponding path program 1 times [2024-12-01 23:05:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:33,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770335538] [2024-12-01 23:05:33,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:33,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:05:33,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:33,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770335538] [2024-12-01 23:05:33,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770335538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:33,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:33,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:33,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226985725] [2024-12-01 23:05:33,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:33,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:33,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:33,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:33,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:33,751 INFO L87 Difference]: Start difference. First operand 544 states and 842 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:05:33,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:33,879 INFO L93 Difference]: Finished difference Result 1013 states and 1533 transitions. [2024-12-01 23:05:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:33,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 310 [2024-12-01 23:05:33,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:33,883 INFO L225 Difference]: With dead ends: 1013 [2024-12-01 23:05:33,883 INFO L226 Difference]: Without dead ends: 632 [2024-12-01 23:05:33,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:33,885 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 41 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:33,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 420 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:33,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-12-01 23:05:34,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 628. [2024-12-01 23:05:34,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 440 states have (on average 1.3681818181818182) internal successors, (602), 442 states have internal predecessors, (602), 170 states have call successors, (170), 17 states have call predecessors, (170), 17 states have return successors, (170), 168 states have call predecessors, (170), 170 states have call successors, (170) [2024-12-01 23:05:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 942 transitions. [2024-12-01 23:05:34,005 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 942 transitions. Word has length 310 [2024-12-01 23:05:34,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:34,005 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 942 transitions. [2024-12-01 23:05:34,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:05:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 942 transitions. [2024-12-01 23:05:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-01 23:05:34,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:34,008 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:34,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 23:05:34,008 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:34,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash -471922356, now seen corresponding path program 1 times [2024-12-01 23:05:34,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:34,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775690652] [2024-12-01 23:05:34,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:34,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:07:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:07:11,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:07:11,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775690652] [2024-12-01 23:07:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775690652] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:07:11,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:07:11,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 23:07:11,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089115852] [2024-12-01 23:07:11,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:07:11,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:07:11,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:07:11,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:07:11,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:07:11,055 INFO L87 Difference]: Start difference. First operand 628 states and 942 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:07:11,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:07:11,998 INFO L93 Difference]: Finished difference Result 788 states and 1135 transitions. [2024-12-01 23:07:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 23:07:11,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 310 [2024-12-01 23:07:11,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:07:12,001 INFO L225 Difference]: With dead ends: 788 [2024-12-01 23:07:12,001 INFO L226 Difference]: Without dead ends: 786 [2024-12-01 23:07:12,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-01 23:07:12,002 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 64 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:07:12,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1730 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:07:12,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-12-01 23:07:12,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 628. [2024-12-01 23:07:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 440 states have (on average 1.3681818181818182) internal successors, (602), 442 states have internal predecessors, (602), 170 states have call successors, (170), 17 states have call predecessors, (170), 17 states have return successors, (170), 168 states have call predecessors, (170), 170 states have call successors, (170) [2024-12-01 23:07:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 942 transitions. [2024-12-01 23:07:12,085 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 942 transitions. Word has length 310 [2024-12-01 23:07:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:07:12,085 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 942 transitions. [2024-12-01 23:07:12,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:07:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 942 transitions. [2024-12-01 23:07:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-01 23:07:12,087 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:07:12,087 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:07:12,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-01 23:07:12,087 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:07:12,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:07:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1765043120, now seen corresponding path program 1 times [2024-12-01 23:07:12,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:07:12,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990198316] [2024-12-01 23:07:12,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:07:12,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:07:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:07:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:07:12,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:07:12,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990198316] [2024-12-01 23:07:12,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990198316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:07:12,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:07:12,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:07:12,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848546004] [2024-12-01 23:07:12,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:07:12,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:07:12,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:07:12,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:07:12,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:07:12,196 INFO L87 Difference]: Start difference. First operand 628 states and 942 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:07:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:07:12,318 INFO L93 Difference]: Finished difference Result 1109 states and 1638 transitions. [2024-12-01 23:07:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:07:12,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 310 [2024-12-01 23:07:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:07:12,321 INFO L225 Difference]: With dead ends: 1109 [2024-12-01 23:07:12,321 INFO L226 Difference]: Without dead ends: 644 [2024-12-01 23:07:12,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:07:12,322 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 48 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:07:12,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 394 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:07:12,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-12-01 23:07:12,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 574. [2024-12-01 23:07:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 409 states have (on average 1.3863080684596576) internal successors, (567), 409 states have internal predecessors, (567), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:07:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 867 transitions. [2024-12-01 23:07:12,399 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 867 transitions. Word has length 310 [2024-12-01 23:07:12,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:07:12,399 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 867 transitions. [2024-12-01 23:07:12,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:07:12,399 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 867 transitions. [2024-12-01 23:07:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-12-01 23:07:12,401 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:07:12,401 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:07:12,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-01 23:07:12,402 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:07:12,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:07:12,402 INFO L85 PathProgramCache]: Analyzing trace with hash 509867145, now seen corresponding path program 1 times [2024-12-01 23:07:12,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:07:12,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618356989] [2024-12-01 23:07:12,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:07:12,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:07:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:07:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:07:57,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:07:57,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618356989] [2024-12-01 23:07:57,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618356989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:07:57,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:07:57,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 23:07:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439030552] [2024-12-01 23:07:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:07:57,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 23:07:57,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:07:57,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 23:07:57,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:07:57,916 INFO L87 Difference]: Start difference. First operand 574 states and 867 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:07:59,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:07:59,657 INFO L93 Difference]: Finished difference Result 662 states and 981 transitions. [2024-12-01 23:07:59,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:07:59,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 311 [2024-12-01 23:07:59,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:07:59,661 INFO L225 Difference]: With dead ends: 662 [2024-12-01 23:07:59,661 INFO L226 Difference]: Without dead ends: 660 [2024-12-01 23:07:59,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:07:59,661 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 87 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 23:07:59,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1214 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 23:07:59,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-12-01 23:07:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 594. [2024-12-01 23:07:59,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 429 states have (on average 1.3962703962703962) internal successors, (599), 429 states have internal predecessors, (599), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:07:59,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 899 transitions. [2024-12-01 23:07:59,725 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 899 transitions. Word has length 311 [2024-12-01 23:07:59,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:07:59,725 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 899 transitions. [2024-12-01 23:07:59,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:07:59,725 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 899 transitions. [2024-12-01 23:07:59,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-12-01 23:07:59,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:07:59,727 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:07:59,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-01 23:07:59,728 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:07:59,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:07:59,728 INFO L85 PathProgramCache]: Analyzing trace with hash 863607051, now seen corresponding path program 1 times [2024-12-01 23:07:59,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:07:59,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515383139] [2024-12-01 23:07:59,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:07:59,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:07:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:09:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:09:30,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:09:30,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515383139] [2024-12-01 23:09:30,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515383139] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:09:30,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:09:30,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-01 23:09:30,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201361970] [2024-12-01 23:09:30,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:09:30,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 23:09:30,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:09:30,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 23:09:30,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:09:30,447 INFO L87 Difference]: Start difference. First operand 594 states and 899 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:09:31,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:09:31,367 INFO L93 Difference]: Finished difference Result 718 states and 1048 transitions. [2024-12-01 23:09:31,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 23:09:31,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 311 [2024-12-01 23:09:31,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:09:31,371 INFO L225 Difference]: With dead ends: 718 [2024-12-01 23:09:31,371 INFO L226 Difference]: Without dead ends: 716 [2024-12-01 23:09:31,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-01 23:09:31,372 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 97 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 23:09:31,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1627 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 23:09:31,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-12-01 23:09:31,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 584. [2024-12-01 23:09:31,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 419 states have (on average 1.4009546539379476) internal successors, (587), 419 states have internal predecessors, (587), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:09:31,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 887 transitions. [2024-12-01 23:09:31,451 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 887 transitions. Word has length 311 [2024-12-01 23:09:31,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:09:31,451 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 887 transitions. [2024-12-01 23:09:31,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:09:31,451 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 887 transitions. [2024-12-01 23:09:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-12-01 23:09:31,452 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:09:31,453 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:09:31,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-01 23:09:31,453 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:09:31,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:09:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 340005037, now seen corresponding path program 1 times [2024-12-01 23:09:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:09:31,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156735173] [2024-12-01 23:09:31,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:09:31,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:09:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:09:31,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:09:31,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:09:31,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156735173] [2024-12-01 23:09:31,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156735173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:09:31,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:09:31,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:09:31,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006048688] [2024-12-01 23:09:31,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:09:31,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:09:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:09:31,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:09:31,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:09:31,558 INFO L87 Difference]: Start difference. First operand 584 states and 887 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:09:31,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:09:31,710 INFO L93 Difference]: Finished difference Result 1099 states and 1630 transitions. [2024-12-01 23:09:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:09:31,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 312 [2024-12-01 23:09:31,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:09:31,715 INFO L225 Difference]: With dead ends: 1099 [2024-12-01 23:09:31,715 INFO L226 Difference]: Without dead ends: 682 [2024-12-01 23:09:31,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:09:31,716 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 41 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:09:31,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 431 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:09:31,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-12-01 23:09:31,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 604. [2024-12-01 23:09:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 439 states have (on average 1.3826879271070616) internal successors, (607), 439 states have internal predecessors, (607), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:09:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 907 transitions. [2024-12-01 23:09:31,817 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 907 transitions. Word has length 312 [2024-12-01 23:09:31,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:09:31,818 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 907 transitions. [2024-12-01 23:09:31,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:09:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 907 transitions. [2024-12-01 23:09:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-12-01 23:09:31,820 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:09:31,820 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:09:31,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-01 23:09:31,821 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:09:31,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:09:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2086030223, now seen corresponding path program 1 times [2024-12-01 23:09:31,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:09:31,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546165902] [2024-12-01 23:09:31,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:09:31,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:09:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:10:27,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:10:27,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546165902] [2024-12-01 23:10:27,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546165902] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:10:27,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:10:27,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 23:10:27,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81166950] [2024-12-01 23:10:27,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:10:27,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 23:10:27,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:10:27,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 23:10:27,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:10:27,093 INFO L87 Difference]: Start difference. First operand 604 states and 907 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:10:28,109 INFO L93 Difference]: Finished difference Result 748 states and 1076 transitions. [2024-12-01 23:10:28,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 23:10:28,109 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 312 [2024-12-01 23:10:28,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:10:28,112 INFO L225 Difference]: With dead ends: 748 [2024-12-01 23:10:28,112 INFO L226 Difference]: Without dead ends: 746 [2024-12-01 23:10:28,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-01 23:10:28,112 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 62 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 23:10:28,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1534 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 23:10:28,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-12-01 23:10:28,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 604. [2024-12-01 23:10:28,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 439 states have (on average 1.3826879271070616) internal successors, (607), 439 states have internal predecessors, (607), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:10:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 907 transitions. [2024-12-01 23:10:28,196 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 907 transitions. Word has length 312 [2024-12-01 23:10:28,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:10:28,197 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 907 transitions. [2024-12-01 23:10:28,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 907 transitions. [2024-12-01 23:10:28,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-12-01 23:10:28,199 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:10:28,199 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:10:28,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 23:10:28,199 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:10:28,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:10:28,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1739503312, now seen corresponding path program 1 times [2024-12-01 23:10:28,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:10:28,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053014388] [2024-12-01 23:10:28,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:10:28,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:10:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:10:28,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:10:28,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053014388] [2024-12-01 23:10:28,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053014388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:10:28,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:10:28,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:10:28,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401738745] [2024-12-01 23:10:28,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:10:28,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:10:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:10:28,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:10:28,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:10:28,280 INFO L87 Difference]: Start difference. First operand 604 states and 907 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:10:28,425 INFO L93 Difference]: Finished difference Result 1111 states and 1638 transitions. [2024-12-01 23:10:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:10:28,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 312 [2024-12-01 23:10:28,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:10:28,429 INFO L225 Difference]: With dead ends: 1111 [2024-12-01 23:10:28,429 INFO L226 Difference]: Without dead ends: 674 [2024-12-01 23:10:28,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:10:28,430 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 44 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:10:28,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 398 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:10:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-12-01 23:10:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 604. [2024-12-01 23:10:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 439 states have (on average 1.3781321184510251) internal successors, (605), 439 states have internal predecessors, (605), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:10:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 905 transitions. [2024-12-01 23:10:28,498 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 905 transitions. Word has length 312 [2024-12-01 23:10:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:10:28,498 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 905 transitions. [2024-12-01 23:10:28,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 905 transitions. [2024-12-01 23:10:28,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-12-01 23:10:28,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:10:28,499 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:10:28,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-01 23:10:28,499 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:10:28,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:10:28,499 INFO L85 PathProgramCache]: Analyzing trace with hash -195979450, now seen corresponding path program 1 times [2024-12-01 23:10:28,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:10:28,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586335009] [2024-12-01 23:10:28,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:10:28,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:10:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:10:43,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:10:43,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586335009] [2024-12-01 23:10:43,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586335009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:10:43,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:10:43,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:10:43,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217170330] [2024-12-01 23:10:43,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:10:43,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:10:43,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:10:43,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:10:43,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:10:43,377 INFO L87 Difference]: Start difference. First operand 604 states and 905 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:44,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:10:44,535 INFO L93 Difference]: Finished difference Result 772 states and 1100 transitions. [2024-12-01 23:10:44,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:10:44,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 313 [2024-12-01 23:10:44,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:10:44,539 INFO L225 Difference]: With dead ends: 772 [2024-12-01 23:10:44,539 INFO L226 Difference]: Without dead ends: 770 [2024-12-01 23:10:44,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:10:44,540 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 85 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:10:44,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1243 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:10:44,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-12-01 23:10:44,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 618. [2024-12-01 23:10:44,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 453 states have (on average 1.3708609271523178) internal successors, (621), 453 states have internal predecessors, (621), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:10:44,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 921 transitions. [2024-12-01 23:10:44,607 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 921 transitions. Word has length 313 [2024-12-01 23:10:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:10:44,607 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 921 transitions. [2024-12-01 23:10:44,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 921 transitions. [2024-12-01 23:10:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-12-01 23:10:44,608 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:10:44,609 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:10:44,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-01 23:10:44,609 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:10:44,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:10:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1743400012, now seen corresponding path program 1 times [2024-12-01 23:10:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:10:44,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250624944] [2024-12-01 23:10:44,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:10:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:10:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:50,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-12-01 23:10:50,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:10:50,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250624944] [2024-12-01 23:10:50,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250624944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:10:50,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:10:50,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-01 23:10:50,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094212021] [2024-12-01 23:10:50,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:10:50,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 23:10:50,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:10:50,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 23:10:50,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:10:50,912 INFO L87 Difference]: Start difference. First operand 618 states and 921 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:51,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:10:51,436 INFO L93 Difference]: Finished difference Result 742 states and 1066 transitions. [2024-12-01 23:10:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 23:10:51,437 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 313 [2024-12-01 23:10:51,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:10:51,439 INFO L225 Difference]: With dead ends: 742 [2024-12-01 23:10:51,439 INFO L226 Difference]: Without dead ends: 740 [2024-12-01 23:10:51,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-01 23:10:51,440 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 95 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:10:51,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1436 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:10:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-12-01 23:10:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 606. [2024-12-01 23:10:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 441 states have (on average 1.3764172335600906) internal successors, (607), 441 states have internal predecessors, (607), 150 states have call successors, (150), 14 states have call predecessors, (150), 14 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-01 23:10:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 907 transitions. [2024-12-01 23:10:51,505 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 907 transitions. Word has length 313 [2024-12-01 23:10:51,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:10:51,506 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 907 transitions. [2024-12-01 23:10:51,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-12-01 23:10:51,506 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 907 transitions. [2024-12-01 23:10:51,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-12-01 23:10:51,507 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:10:51,507 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:10:51,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-01 23:10:51,507 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:10:51,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:10:51,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2035915340, now seen corresponding path program 1 times [2024-12-01 23:10:51,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:10:51,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252895138] [2024-12-01 23:10:51,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:10:51,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:10:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 24 proven. 123 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-12-01 23:10:52,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:10:52,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252895138] [2024-12-01 23:10:52,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252895138] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:10:52,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903459757] [2024-12-01 23:10:52,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:10:52,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:10:52,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:10:52,049 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:10:52,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 23:10:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:52,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-01 23:10:52,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:10:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1479 proven. 39 refuted. 0 times theorem prover too weak. 3382 trivial. 0 not checked. [2024-12-01 23:10:52,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:10:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 249 proven. 42 refuted. 0 times theorem prover too weak. 4609 trivial. 0 not checked. [2024-12-01 23:10:53,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903459757] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:10:53,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:10:53,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 9] total 26 [2024-12-01 23:10:53,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766060612] [2024-12-01 23:10:53,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:10:53,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-01 23:10:53,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:10:53,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-01 23:10:53,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-12-01 23:10:53,294 INFO L87 Difference]: Start difference. First operand 606 states and 907 transitions. Second operand has 26 states, 26 states have (on average 7.269230769230769) internal successors, (189), 26 states have internal predecessors, (189), 8 states have call successors, (150), 4 states have call predecessors, (150), 9 states have return successors, (150), 8 states have call predecessors, (150), 8 states have call successors, (150) [2024-12-01 23:10:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:10:57,545 INFO L93 Difference]: Finished difference Result 1950 states and 2810 transitions. [2024-12-01 23:10:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-12-01 23:10:57,545 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.269230769230769) internal successors, (189), 26 states have internal predecessors, (189), 8 states have call successors, (150), 4 states have call predecessors, (150), 9 states have return successors, (150), 8 states have call predecessors, (150), 8 states have call successors, (150) Word has length 314 [2024-12-01 23:10:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:10:57,550 INFO L225 Difference]: With dead ends: 1950 [2024-12-01 23:10:57,550 INFO L226 Difference]: Without dead ends: 1479 [2024-12-01 23:10:57,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3058 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1602, Invalid=7518, Unknown=0, NotChecked=0, Total=9120 [2024-12-01 23:10:57,554 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1402 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 3675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 874 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:10:57,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 2251 Invalid, 3675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [874 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-01 23:10:57,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-12-01 23:10:57,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 866. [2024-12-01 23:10:57,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 647 states have (on average 1.3709428129829984) internal successors, (887), 648 states have internal predecessors, (887), 191 states have call successors, (191), 27 states have call predecessors, (191), 27 states have return successors, (191), 190 states have call predecessors, (191), 191 states have call successors, (191) [2024-12-01 23:10:57,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1269 transitions. [2024-12-01 23:10:57,694 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1269 transitions. Word has length 314 [2024-12-01 23:10:57,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:10:57,695 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1269 transitions. [2024-12-01 23:10:57,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.269230769230769) internal successors, (189), 26 states have internal predecessors, (189), 8 states have call successors, (150), 4 states have call predecessors, (150), 9 states have return successors, (150), 8 states have call predecessors, (150), 8 states have call successors, (150) [2024-12-01 23:10:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1269 transitions. [2024-12-01 23:10:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-12-01 23:10:57,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:10:57,697 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:10:57,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-01 23:10:57,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:10:57,897 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:10:57,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:10:57,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1735647965, now seen corresponding path program 1 times [2024-12-01 23:10:57,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:10:57,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000461522] [2024-12-01 23:10:57,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:10:57,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:10:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-12-01 23:10:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:10:58,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000461522] [2024-12-01 23:10:58,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000461522] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:10:58,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343010619] [2024-12-01 23:10:58,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:10:58,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:10:58,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:10:58,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:10:58,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 23:10:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:10:58,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-01 23:10:58,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:10:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1377 proven. 123 refuted. 0 times theorem prover too weak. 3400 trivial. 0 not checked. [2024-12-01 23:10:59,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:11:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 24 proven. 123 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-12-01 23:11:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343010619] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:11:06,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:11:06,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 12] total 25 [2024-12-01 23:11:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756409770] [2024-12-01 23:11:06,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:11:06,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-01 23:11:06,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:11:06,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-01 23:11:06,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2024-12-01 23:11:06,222 INFO L87 Difference]: Start difference. First operand 866 states and 1269 transitions. Second operand has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 5 states have call successors, (141), 2 states have call predecessors, (141), 4 states have return successors, (142), 4 states have call predecessors, (142), 5 states have call successors, (142) [2024-12-01 23:11:10,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:11:10,124 INFO L93 Difference]: Finished difference Result 2182 states and 3010 transitions. [2024-12-01 23:11:10,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-12-01 23:11:10,125 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 5 states have call successors, (141), 2 states have call predecessors, (141), 4 states have return successors, (142), 4 states have call predecessors, (142), 5 states have call successors, (142) Word has length 314 [2024-12-01 23:11:10,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:11:10,129 INFO L225 Difference]: With dead ends: 2182 [2024-12-01 23:11:10,129 INFO L226 Difference]: Without dead ends: 1424 [2024-12-01 23:11:10,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=916, Invalid=3914, Unknown=0, NotChecked=0, Total=4830 [2024-12-01 23:11:10,132 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 1833 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-01 23:11:10,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 1695 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-01 23:11:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2024-12-01 23:11:10,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 882. [2024-12-01 23:11:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 662 states have (on average 1.3217522658610272) internal successors, (875), 663 states have internal predecessors, (875), 191 states have call successors, (191), 28 states have call predecessors, (191), 28 states have return successors, (191), 190 states have call predecessors, (191), 191 states have call successors, (191) [2024-12-01 23:11:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1257 transitions. [2024-12-01 23:11:10,242 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1257 transitions. Word has length 314 [2024-12-01 23:11:10,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:11:10,243 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1257 transitions. [2024-12-01 23:11:10,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 5 states have call successors, (141), 2 states have call predecessors, (141), 4 states have return successors, (142), 4 states have call predecessors, (142), 5 states have call successors, (142) [2024-12-01 23:11:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1257 transitions. [2024-12-01 23:11:10,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-12-01 23:11:10,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:11:10,244 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:11:10,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 23:11:10,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-01 23:11:10,445 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:11:10,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:11:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1491323597, now seen corresponding path program 1 times [2024-12-01 23:11:10,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:11:10,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356410869] [2024-12-01 23:11:10,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:11:10,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:11:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:11:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 24 proven. 123 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2024-12-01 23:11:11,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:11:11,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356410869] [2024-12-01 23:11:11,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356410869] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:11:11,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518069102] [2024-12-01 23:11:11,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:11:11,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:11:11,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:11:11,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:11:11,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db73f616-b7c8-4489-9e20-309245ee3354/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 23:11:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:11:11,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-01 23:11:11,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:15:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1377 proven. 123 refuted. 0 times theorem prover too weak. 3400 trivial. 0 not checked. [2024-12-01 23:15:17,283 INFO L312 TraceCheckSpWp]: Computing backward predicates...