./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd --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 54f1be55645106b43145d214f59b6f833268ce7c7f84e399c536bf03a2c9679b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:24:04,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:24:05,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:24:05,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:24:05,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:24:05,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:24:05,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:24:05,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:24:05,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:24:05,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:24:05,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:24:05,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:24:05,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:24:05,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:24:05,064 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:24:05,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:24:05,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:24:05,065 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:24:05,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:24:05,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:24:05,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:24:05,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:24:05,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:24:05,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:24:05,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:24:05,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:24:05,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:24:05,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:24:05,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:24:05,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:24:05,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:24:05,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:24:05,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:24:05,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:24:05,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:24:05,070 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:24:05,070 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:24:05,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:24:05,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:24:05,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:24:05,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:24:05,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:24:05,071 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_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd 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 -> 54f1be55645106b43145d214f59b6f833268ce7c7f84e399c536bf03a2c9679b [2024-11-13 16:24:05,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:24:05,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:24:05,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:24:05,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:24:05,455 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:24:05,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c Unable to find full path for "g++" [2024-11-13 16:24:07,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:24:08,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:24:08,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c [2024-11-13 16:24:08,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/data/9e40417f3/e23e093897244d40ada6f11f8b421a7d/FLAG44ac5e19a [2024-11-13 16:24:08,629 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/data/9e40417f3/e23e093897244d40ada6f11f8b421a7d [2024-11-13 16:24:08,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:24:08,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:24:08,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:24:08,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:24:08,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:24:08,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:08" (1/1) ... [2024-11-13 16:24:08,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c7d421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:08, skipping insertion in model container [2024-11-13 16:24:08,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:08" (1/1) ... [2024-11-13 16:24:08,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:24:11,099 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_264cd2af-6f8e-4c99-91dd-580517b5fd74/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[381679,381692] [2024-11-13 16:24:11,151 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_264cd2af-6f8e-4c99-91dd-580517b5fd74/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[383339,383352] [2024-11-13 16:24:11,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:24:11,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:24:12,726 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_264cd2af-6f8e-4c99-91dd-580517b5fd74/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[381679,381692] [2024-11-13 16:24:12,731 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_264cd2af-6f8e-4c99-91dd-580517b5fd74/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[383339,383352] [2024-11-13 16:24:12,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:24:12,847 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:24:12,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12 WrapperNode [2024-11-13 16:24:12,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:24:12,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:24:12,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:24:12,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:24:12,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:12,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:13,600 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12922 [2024-11-13 16:24:13,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:24:13,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:24:13,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:24:13,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:24:13,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:13,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:13,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:13,931 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 16:24:13,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:13,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:14,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:14,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:14,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:14,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:14,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:24:14,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:24:14,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:24:14,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:24:14,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (1/1) ... [2024-11-13 16:24:14,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:24:14,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:14,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:24:14,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_264cd2af-6f8e-4c99-91dd-580517b5fd74/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:24:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:24:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-13 16:24:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-13 16:24:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-13 16:24:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-13 16:24:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-13 16:24:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-13 16:24:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-13 16:24:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-13 16:24:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-13 16:24:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-13 16:24:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-13 16:24:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-13 16:24:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:24:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:24:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:24:14,782 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:24:14,785 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:24:29,067 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-11-13 16:24:29,067 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:24:29,173 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:24:29,173 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-13 16:24:29,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:24:29 BoogieIcfgContainer [2024-11-13 16:24:29,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:24:29,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:24:29,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:24:29,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:24:29,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:24:08" (1/3) ... [2024-11-13 16:24:29,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506f4e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:24:29, skipping insertion in model container [2024-11-13 16:24:29,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:12" (2/3) ... [2024-11-13 16:24:29,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506f4e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:24:29, skipping insertion in model container [2024-11-13 16:24:29,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:24:29" (3/3) ... [2024-11-13 16:24:29,194 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.07.cil-1.c [2024-11-13 16:24:29,218 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:24:29,223 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label43+token_ring.07.cil-1.c that has 7 procedures, 2448 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-11-13 16:24:29,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:24:29,396 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;@1bdadb67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:24:29,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:24:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 2448 states, 2418 states have (on average 1.846980976013234) internal successors, (4466), 2421 states have internal predecessors, (4466), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:24:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:29,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:29,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:29,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:29,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:29,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1108662123, now seen corresponding path program 1 times [2024-11-13 16:24:29,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:29,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662411016] [2024-11-13 16:24:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:29,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:29,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:30,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:30,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:24:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:30,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:24:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:30,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:24:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:24:30,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:30,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662411016] [2024-11-13 16:24:30,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662411016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:30,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:30,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:24:30,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114172253] [2024-11-13 16:24:30,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:30,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:24:30,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:30,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:24:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:24:30,388 INFO L87 Difference]: Start difference. First operand has 2448 states, 2418 states have (on average 1.846980976013234) internal successors, (4466), 2421 states have internal predecessors, (4466), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:32,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:32,956 INFO L93 Difference]: Finished difference Result 4976 states and 9153 transitions. [2024-11-13 16:24:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:24:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:24:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:32,992 INFO L225 Difference]: With dead ends: 4976 [2024-11-13 16:24:32,992 INFO L226 Difference]: Without dead ends: 2468 [2024-11-13 16:24:33,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:24:33,007 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 670 mSDsluCounter, 12351 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 16619 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:33,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 16619 Invalid, 697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 16:24:33,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-13 16:24:33,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2381. [2024-11-13 16:24:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2352 states have (on average 1.8337585034013606) internal successors, (4313), 2354 states have internal predecessors, (4313), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 16:24:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 4355 transitions. [2024-11-13 16:24:33,227 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 4355 transitions. Word has length 123 [2024-11-13 16:24:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:33,228 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 4355 transitions. [2024-11-13 16:24:33,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:33,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 4355 transitions. [2024-11-13 16:24:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:33,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:33,236 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:33,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:24:33,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:33,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:33,238 INFO L85 PathProgramCache]: Analyzing trace with hash -618482839, now seen corresponding path program 1 times [2024-11-13 16:24:33,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:33,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705503885] [2024-11-13 16:24:33,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:33,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:33,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:33,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:33,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:24:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:33,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:24:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:33,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:24:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:33,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:24:33,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705503885] [2024-11-13 16:24:33,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705503885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:33,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:33,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:24:33,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709111396] [2024-11-13 16:24:33,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:33,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:24:33,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:33,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:24:33,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:24:33,883 INFO L87 Difference]: Start difference. First operand 2381 states and 4355 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:37,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:37,465 INFO L93 Difference]: Finished difference Result 3053 states and 5418 transitions. [2024-11-13 16:24:37,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:24:37,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:24:37,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:37,484 INFO L225 Difference]: With dead ends: 3053 [2024-11-13 16:24:37,485 INFO L226 Difference]: Without dead ends: 2808 [2024-11-13 16:24:37,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:24:37,489 INFO L432 NwaCegarLoop]: 4179 mSDtfsCounter, 4951 mSDsluCounter, 12535 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4965 SdHoareTripleChecker+Valid, 16714 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:37,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4965 Valid, 16714 Invalid, 1513 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 16:24:37,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2024-11-13 16:24:37,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2635. [2024-11-13 16:24:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2583 states have (on average 1.8087495160665892) internal successors, (4672), 2586 states have internal predecessors, (4672), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-11-13 16:24:37,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 4749 transitions. [2024-11-13 16:24:37,634 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 4749 transitions. Word has length 123 [2024-11-13 16:24:37,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:37,637 INFO L471 AbstractCegarLoop]: Abstraction has 2635 states and 4749 transitions. [2024-11-13 16:24:37,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:37,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 4749 transitions. [2024-11-13 16:24:37,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:37,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:37,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:37,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:24:37,646 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:37,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1344046867, now seen corresponding path program 1 times [2024-11-13 16:24:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:37,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803728253] [2024-11-13 16:24:37,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:37,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:37,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:38,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:38,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:24:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:38,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:24:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:38,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:24:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:24:38,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:38,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803728253] [2024-11-13 16:24:38,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803728253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:38,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:38,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:24:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602678664] [2024-11-13 16:24:38,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:38,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:24:38,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:38,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:24:38,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:24:38,199 INFO L87 Difference]: Start difference. First operand 2635 states and 4749 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:41,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:41,757 INFO L93 Difference]: Finished difference Result 3657 states and 6363 transitions. [2024-11-13 16:24:41,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:24:41,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:24:41,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:41,778 INFO L225 Difference]: With dead ends: 3657 [2024-11-13 16:24:41,778 INFO L226 Difference]: Without dead ends: 3158 [2024-11-13 16:24:41,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:24:41,786 INFO L432 NwaCegarLoop]: 4345 mSDtfsCounter, 4964 mSDsluCounter, 17136 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4978 SdHoareTripleChecker+Valid, 21481 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:41,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4978 Valid, 21481 Invalid, 2326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 16:24:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2024-11-13 16:24:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 2872. [2024-11-13 16:24:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2872 states, 2797 states have (on average 1.7865570253843404) internal successors, (4997), 2801 states have internal predecessors, (4997), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-13 16:24:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 5108 transitions. [2024-11-13 16:24:41,921 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 5108 transitions. Word has length 123 [2024-11-13 16:24:41,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:41,922 INFO L471 AbstractCegarLoop]: Abstraction has 2872 states and 5108 transitions. [2024-11-13 16:24:41,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 5108 transitions. [2024-11-13 16:24:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:41,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:41,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:41,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:24:41,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:41,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash 45247147, now seen corresponding path program 1 times [2024-11-13 16:24:41,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:41,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246127474] [2024-11-13 16:24:41,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:41,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:42,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:42,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:42,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:24:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:42,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:24:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:42,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:24:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:24:42,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:42,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246127474] [2024-11-13 16:24:42,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246127474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:42,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:42,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:24:42,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914980829] [2024-11-13 16:24:42,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:42,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:24:42,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:42,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:24:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:24:42,345 INFO L87 Difference]: Start difference. First operand 2872 states and 5108 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:45,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:45,504 INFO L93 Difference]: Finished difference Result 4547 states and 7746 transitions. [2024-11-13 16:24:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:24:45,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:24:45,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:45,538 INFO L225 Difference]: With dead ends: 4547 [2024-11-13 16:24:45,538 INFO L226 Difference]: Without dead ends: 3811 [2024-11-13 16:24:45,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:24:45,551 INFO L432 NwaCegarLoop]: 4343 mSDtfsCounter, 4962 mSDsluCounter, 17136 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 2324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:45,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 21479 Invalid, 2324 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 16:24:45,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2024-11-13 16:24:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3347. [2024-11-13 16:24:45,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 3226 states have (on average 1.7507749535027899) internal successors, (5648), 3232 states have internal predecessors, (5648), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-11-13 16:24:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 5831 transitions. [2024-11-13 16:24:45,920 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 5831 transitions. Word has length 123 [2024-11-13 16:24:45,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:45,920 INFO L471 AbstractCegarLoop]: Abstraction has 3347 states and 5831 transitions. [2024-11-13 16:24:45,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 5831 transitions. [2024-11-13 16:24:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:45,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:45,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:45,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:24:45,926 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:45,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1988146899, now seen corresponding path program 1 times [2024-11-13 16:24:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:45,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935847257] [2024-11-13 16:24:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:46,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:46,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:46,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:24:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:46,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:24:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:24:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:24:46,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:46,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935847257] [2024-11-13 16:24:46,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935847257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:46,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:46,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:24:46,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145590632] [2024-11-13 16:24:46,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:46,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:24:46,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:46,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:24:46,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:24:46,233 INFO L87 Difference]: Start difference. First operand 3347 states and 5831 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:49,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:49,508 INFO L93 Difference]: Finished difference Result 6262 states and 10397 transitions. [2024-11-13 16:24:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:24:49,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:24:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:49,529 INFO L225 Difference]: With dead ends: 6262 [2024-11-13 16:24:49,530 INFO L226 Difference]: Without dead ends: 5051 [2024-11-13 16:24:49,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:24:49,536 INFO L432 NwaCegarLoop]: 4343 mSDtfsCounter, 4958 mSDsluCounter, 17136 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4972 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:49,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4972 Valid, 21479 Invalid, 2315 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 16:24:49,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2024-11-13 16:24:49,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 4298. [2024-11-13 16:24:49,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4085 states have (on average 1.7013463892288863) internal successors, (6950), 4095 states have internal predecessors, (6950), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2024-11-13 16:24:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 7283 transitions. [2024-11-13 16:24:49,795 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 7283 transitions. Word has length 123 [2024-11-13 16:24:49,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:49,796 INFO L471 AbstractCegarLoop]: Abstraction has 4298 states and 7283 transitions. [2024-11-13 16:24:49,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 7283 transitions. [2024-11-13 16:24:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:49,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:49,801 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:49,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:24:49,801 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:49,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash 440111723, now seen corresponding path program 1 times [2024-11-13 16:24:49,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:49,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448599703] [2024-11-13 16:24:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:49,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:49,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:50,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:50,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:24:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:50,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:24:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:50,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:24:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:24:50,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:50,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448599703] [2024-11-13 16:24:50,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448599703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:50,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:50,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:24:50,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697063902] [2024-11-13 16:24:50,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:50,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:24:50,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:50,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:24:50,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:24:50,113 INFO L87 Difference]: Start difference. First operand 4298 states and 7283 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:53,711 INFO L93 Difference]: Finished difference Result 9691 states and 15715 transitions. [2024-11-13 16:24:53,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:24:53,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:24:53,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:53,748 INFO L225 Difference]: With dead ends: 9691 [2024-11-13 16:24:53,748 INFO L226 Difference]: Without dead ends: 7529 [2024-11-13 16:24:53,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:24:53,758 INFO L432 NwaCegarLoop]: 4343 mSDtfsCounter, 4954 mSDsluCounter, 17136 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4968 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:53,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4968 Valid, 21479 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 16:24:53,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7529 states. [2024-11-13 16:24:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7529 to 6205. [2024-11-13 16:24:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 5808 states have (on average 1.6460055096418733) internal successors, (9560), 5826 states have internal predecessors, (9560), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2024-11-13 16:24:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 10211 transitions. [2024-11-13 16:24:54,169 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 10211 transitions. Word has length 123 [2024-11-13 16:24:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:54,169 INFO L471 AbstractCegarLoop]: Abstraction has 6205 states and 10211 transitions. [2024-11-13 16:24:54,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 10211 transitions. [2024-11-13 16:24:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:54,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:54,176 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:54,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:24:54,176 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:54,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:54,177 INFO L85 PathProgramCache]: Analyzing trace with hash -867030675, now seen corresponding path program 1 times [2024-11-13 16:24:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:54,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868893043] [2024-11-13 16:24:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:54,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:54,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:54,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:54,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:24:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:54,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:24:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:54,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:24:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:54,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:24:54,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:54,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868893043] [2024-11-13 16:24:54,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868893043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:54,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:54,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:24:54,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030608232] [2024-11-13 16:24:54,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:54,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:24:54,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:24:54,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:24:54,528 INFO L87 Difference]: Start difference. First operand 6205 states and 10211 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:58,249 INFO L93 Difference]: Finished difference Result 16548 states and 26409 transitions. [2024-11-13 16:24:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:24:58,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:24:58,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:58,315 INFO L225 Difference]: With dead ends: 16548 [2024-11-13 16:24:58,315 INFO L226 Difference]: Without dead ends: 12479 [2024-11-13 16:24:58,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:24:58,335 INFO L432 NwaCegarLoop]: 4343 mSDtfsCounter, 4956 mSDsluCounter, 17136 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:58,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4970 Valid, 21479 Invalid, 2292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 16:24:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12479 states. [2024-11-13 16:24:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12479 to 10032. [2024-11-13 16:24:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10032 states, 9267 states have (on average 1.5968490342074027) internal successors, (14798), 9301 states have internal predecessors, (14798), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2024-11-13 16:24:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 16139 transitions. [2024-11-13 16:24:59,649 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 16139 transitions. Word has length 123 [2024-11-13 16:24:59,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:59,650 INFO L471 AbstractCegarLoop]: Abstraction has 10032 states and 16139 transitions. [2024-11-13 16:24:59,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:24:59,652 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 16139 transitions. [2024-11-13 16:24:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:24:59,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:59,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:59,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:24:59,665 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:24:59,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1030466091, now seen corresponding path program 1 times [2024-11-13 16:24:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:59,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298135783] [2024-11-13 16:24:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:59,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:24:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:59,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:24:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:00,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:25:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:00,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:25:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:00,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:25:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:00,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:00,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:00,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298135783] [2024-11-13 16:25:00,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298135783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:00,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:00,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:25:00,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622098493] [2024-11-13 16:25:00,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:00,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:25:00,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:00,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:25:00,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:25:00,086 INFO L87 Difference]: Start difference. First operand 10032 states and 16139 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:02,371 INFO L93 Difference]: Finished difference Result 20470 states and 32732 transitions. [2024-11-13 16:25:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:25:02,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:25:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:02,436 INFO L225 Difference]: With dead ends: 20470 [2024-11-13 16:25:02,436 INFO L226 Difference]: Without dead ends: 12574 [2024-11-13 16:25:02,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:25:02,464 INFO L432 NwaCegarLoop]: 4164 mSDtfsCounter, 4803 mSDsluCounter, 12380 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4818 SdHoareTripleChecker+Valid, 16544 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:02,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4818 Valid, 16544 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 16:25:02,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2024-11-13 16:25:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 10032. [2024-11-13 16:25:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10032 states, 9267 states have (on average 1.593288011222618) internal successors, (14765), 9301 states have internal predecessors, (14765), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2024-11-13 16:25:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 16106 transitions. [2024-11-13 16:25:03,618 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 16106 transitions. Word has length 123 [2024-11-13 16:25:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:03,622 INFO L471 AbstractCegarLoop]: Abstraction has 10032 states and 16106 transitions. [2024-11-13 16:25:03,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 16106 transitions. [2024-11-13 16:25:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:25:03,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:03,658 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:03,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:25:03,663 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:03,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:03,664 INFO L85 PathProgramCache]: Analyzing trace with hash -875937175, now seen corresponding path program 1 times [2024-11-13 16:25:03,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:03,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891467151] [2024-11-13 16:25:03,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:03,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:03,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:25:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:03,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:25:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:04,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:25:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:04,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:25:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:04,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:25:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:04,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:04,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891467151] [2024-11-13 16:25:04,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891467151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:04,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:04,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:25:04,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498669524] [2024-11-13 16:25:04,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:04,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:25:04,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:04,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:25:04,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:25:04,150 INFO L87 Difference]: Start difference. First operand 10032 states and 16106 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:09,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:09,732 INFO L93 Difference]: Finished difference Result 33620 states and 52881 transitions. [2024-11-13 16:25:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:25:09,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:25:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:09,828 INFO L225 Difference]: With dead ends: 33620 [2024-11-13 16:25:09,829 INFO L226 Difference]: Without dead ends: 25724 [2024-11-13 16:25:09,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:25:09,859 INFO L432 NwaCegarLoop]: 4341 mSDtfsCounter, 5236 mSDsluCounter, 17128 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5258 SdHoareTripleChecker+Valid, 21469 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:09,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5258 Valid, 21469 Invalid, 2235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 16:25:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25724 states. [2024-11-13 16:25:11,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25724 to 17685. [2024-11-13 16:25:11,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17685 states, 16216 states have (on average 1.5593857918105574) internal successors, (25287), 16282 states have internal predecessors, (25287), 1013 states have call successors, (1013), 390 states have call predecessors, (1013), 454 states have return successors, (1806), 1076 states have call predecessors, (1806), 1013 states have call successors, (1806) [2024-11-13 16:25:11,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17685 states to 17685 states and 28106 transitions. [2024-11-13 16:25:11,384 INFO L78 Accepts]: Start accepts. Automaton has 17685 states and 28106 transitions. Word has length 123 [2024-11-13 16:25:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:11,385 INFO L471 AbstractCegarLoop]: Abstraction has 17685 states and 28106 transitions. [2024-11-13 16:25:11,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:11,385 INFO L276 IsEmpty]: Start isEmpty. Operand 17685 states and 28106 transitions. [2024-11-13 16:25:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:25:11,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:11,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:11,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:25:11,401 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:11,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:11,402 INFO L85 PathProgramCache]: Analyzing trace with hash 725133931, now seen corresponding path program 1 times [2024-11-13 16:25:11,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:11,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172981905] [2024-11-13 16:25:11,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:11,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:11,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:25:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:11,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:25:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:11,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:25:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:11,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:25:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:11,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:25:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:11,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:11,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172981905] [2024-11-13 16:25:11,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172981905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:11,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:11,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:25:11,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144789915] [2024-11-13 16:25:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:11,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:25:11,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:25:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:25:11,721 INFO L87 Difference]: Start difference. First operand 17685 states and 28106 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:19,812 INFO L93 Difference]: Finished difference Result 63419 states and 100039 transitions. [2024-11-13 16:25:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:25:19,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:25:19,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:20,024 INFO L225 Difference]: With dead ends: 63419 [2024-11-13 16:25:20,024 INFO L226 Difference]: Without dead ends: 47870 [2024-11-13 16:25:20,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:25:20,087 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 5006 mSDsluCounter, 17125 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5019 SdHoareTripleChecker+Valid, 21465 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:20,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5019 Valid, 21465 Invalid, 2652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 2597 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 16:25:20,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47870 states. [2024-11-13 16:25:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47870 to 32634. [2024-11-13 16:25:22,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32634 states, 29789 states have (on average 1.538856624928665) internal successors, (45841), 29919 states have internal predecessors, (45841), 1941 states have call successors, (1941), 774 states have call predecessors, (1941), 902 states have return successors, (4256), 2068 states have call predecessors, (4256), 1941 states have call successors, (4256) [2024-11-13 16:25:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32634 states to 32634 states and 52038 transitions. [2024-11-13 16:25:22,766 INFO L78 Accepts]: Start accepts. Automaton has 32634 states and 52038 transitions. Word has length 123 [2024-11-13 16:25:22,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:22,767 INFO L471 AbstractCegarLoop]: Abstraction has 32634 states and 52038 transitions. [2024-11-13 16:25:22,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 32634 states and 52038 transitions. [2024-11-13 16:25:22,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:25:22,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:22,810 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:22,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:25:22,810 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:22,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:22,812 INFO L85 PathProgramCache]: Analyzing trace with hash -331597271, now seen corresponding path program 1 times [2024-11-13 16:25:22,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:22,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686995798] [2024-11-13 16:25:22,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:22,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:25:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:25:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:25:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:25:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:25:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:23,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:23,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686995798] [2024-11-13 16:25:23,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686995798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:23,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:23,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:25:23,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258979627] [2024-11-13 16:25:23,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:23,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:25:23,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:23,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:25:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:25:23,227 INFO L87 Difference]: Start difference. First operand 32634 states and 52038 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:32,172 INFO L93 Difference]: Finished difference Result 120870 states and 192805 transitions. [2024-11-13 16:25:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:25:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:25:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:32,517 INFO L225 Difference]: With dead ends: 120870 [2024-11-13 16:25:32,518 INFO L226 Difference]: Without dead ends: 90372 [2024-11-13 16:25:32,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:25:32,617 INFO L432 NwaCegarLoop]: 4341 mSDtfsCounter, 5156 mSDsluCounter, 17128 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 21469 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:32,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5178 Valid, 21469 Invalid, 2209 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 16:25:32,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90372 states. [2024-11-13 16:25:38,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90372 to 62787. [2024-11-13 16:25:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62787 states, 57254 states have (on average 1.5286792189192022) internal successors, (87523), 57512 states have internal predecessors, (87523), 3733 states have call successors, (3733), 1542 states have call predecessors, (3733), 1798 states have return successors, (10550), 3988 states have call predecessors, (10550), 3733 states have call successors, (10550) [2024-11-13 16:25:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62787 states to 62787 states and 101806 transitions. [2024-11-13 16:25:38,535 INFO L78 Accepts]: Start accepts. Automaton has 62787 states and 101806 transitions. Word has length 123 [2024-11-13 16:25:38,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:38,535 INFO L471 AbstractCegarLoop]: Abstraction has 62787 states and 101806 transitions. [2024-11-13 16:25:38,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:38,535 INFO L276 IsEmpty]: Start isEmpty. Operand 62787 states and 101806 transitions. [2024-11-13 16:25:38,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:25:38,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:38,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:38,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:25:38,579 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:38,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:38,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1019787947, now seen corresponding path program 1 times [2024-11-13 16:25:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700486283] [2024-11-13 16:25:38,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:38,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:38,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 16:25:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:38,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 16:25:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:38,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:25:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:38,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:25:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:38,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:25:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:38,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:38,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700486283] [2024-11-13 16:25:38,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700486283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:38,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:38,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:25:38,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079489902] [2024-11-13 16:25:38,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:38,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:25:38,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:38,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:25:38,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:25:38,856 INFO L87 Difference]: Start difference. First operand 62787 states and 101806 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 16:25:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:54,175 INFO L93 Difference]: Finished difference Result 234237 states and 381803 transitions. [2024-11-13 16:25:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:25:54,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-13 16:25:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:54,919 INFO L225 Difference]: With dead ends: 234237 [2024-11-13 16:25:54,919 INFO L226 Difference]: Without dead ends: 173586 [2024-11-13 16:25:55,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:25:55,161 INFO L432 NwaCegarLoop]: 4341 mSDtfsCounter, 5116 mSDsluCounter, 17128 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5138 SdHoareTripleChecker+Valid, 21469 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:55,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5138 Valid, 21469 Invalid, 2196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 16:25:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173586 states.