./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1937875315099b80c98271a1c221b9887fc0d74aa97933e0962b57c2a2a9f37a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:45:35,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:45:35,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:45:35,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:45:35,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:45:35,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:45:35,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:45:35,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:45:35,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:45:35,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:45:35,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:45:35,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:45:35,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:45:35,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:45:35,180 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:45:35,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:45:35,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:45:35,182 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:45:35,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:45:35,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:45:35,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:45:35,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:45:35,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:45:35,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:45:35,184 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_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1937875315099b80c98271a1c221b9887fc0d74aa97933e0962b57c2a2a9f37a [2024-12-02 11:45:35,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:45:35,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:45:35,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:45:35,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:45:35,446 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:45:35,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c [2024-12-02 11:45:38,122 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/data/904366090/e558759b673142e39865a42185ef6e0d/FLAG2e9d22a3c [2024-12-02 11:45:38,706 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:45:38,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c [2024-12-02 11:45:38,748 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/data/904366090/e558759b673142e39865a42185ef6e0d/FLAG2e9d22a3c [2024-12-02 11:45:38,762 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/data/904366090/e558759b673142e39865a42185ef6e0d [2024-12-02 11:45:38,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:45:38,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:45:38,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:45:38,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:45:38,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:45:38,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:45:38" (1/1) ... [2024-12-02 11:45:38,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bf41a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:38, skipping insertion in model container [2024-12-02 11:45:38,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:45:38" (1/1) ... [2024-12-02 11:45:38,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:45:40,265 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_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c[376251,376264] [2024-12-02 11:45:40,298 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_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c[383339,383352] [2024-12-02 11:45:40,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:45:40,510 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:45:41,373 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_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c[376251,376264] [2024-12-02 11:45:41,408 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_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/sv-benchmarks/c/combinations/Problem05_label41+token_ring.07.cil-1.c[383339,383352] [2024-12-02 11:45:41,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:45:41,454 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:45:41,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41 WrapperNode [2024-12-02 11:45:41,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:45:41,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:45:41,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:45:41,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:45:41,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,691 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12922 [2024-12-02 11:45:41,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:45:41,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:45:41,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:45:41,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:45:41,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,785 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:45:41,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,970 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:41,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:42,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:42,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:42,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:42,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:45:42,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:45:42,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:45:42,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:45:42,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (1/1) ... [2024-12-02 11:45:42,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:45:42,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:45:42,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:45:42,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c0b4ca-a643-4be5-af70-1a5d96e6bd7f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:45:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:45:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-12-02 11:45:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-12-02 11:45:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-12-02 11:45:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-12-02 11:45:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-12-02 11:45:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-12-02 11:45:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-12-02 11:45:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-12-02 11:45:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-12-02 11:45:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-12-02 11:45:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-12-02 11:45:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-12-02 11:45:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:45:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:45:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:45:42,228 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:45:42,230 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:45:49,630 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-12-02 11:45:49,630 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:45:49,673 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:45:49,673 INFO L312 CfgBuilder]: Removed 22 assume(true) statements. [2024-12-02 11:45:49,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:45:49 BoogieIcfgContainer [2024-12-02 11:45:49,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:45:49,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:45:49,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:45:49,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:45:49,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:45:38" (1/3) ... [2024-12-02 11:45:49,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbcf2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:45:49, skipping insertion in model container [2024-12-02 11:45:49,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:45:41" (2/3) ... [2024-12-02 11:45:49,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbcf2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:45:49, skipping insertion in model container [2024-12-02 11:45:49,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:45:49" (3/3) ... [2024-12-02 11:45:49,681 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.07.cil-1.c [2024-12-02 11:45:49,692 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:45:49,694 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label41+token_ring.07.cil-1.c that has 7 procedures, 2438 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-12-02 11:45:49,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:45:49,782 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;@337366f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:45:49,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:45:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 2438 states, 2409 states have (on average 1.8497301784973017) internal successors, (4456), 2411 states have internal predecessors, (4456), 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) [2024-12-02 11:45:49,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:49,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:49,803 INFO L218 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] [2024-12-02 11:45:49,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:49,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:49,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1475632833, now seen corresponding path program 1 times [2024-12-02 11:45:49,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:49,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225186219] [2024-12-02 11:45:49,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:49,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:50,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:50,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225186219] [2024-12-02 11:45:50,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225186219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:50,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:50,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:45:50,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831336175] [2024-12-02 11:45:50,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:50,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:45:50,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:50,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:45:50,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:45:50,107 INFO L87 Difference]: Start difference. First operand has 2438 states, 2409 states have (on average 1.8497301784973017) internal successors, (4456), 2411 states have internal predecessors, (4456), 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 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:50,311 INFO L93 Difference]: Finished difference Result 4864 states and 8973 transitions. [2024-12-02 11:45:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:45:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 1 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 121 [2024-12-02 11:45:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:50,331 INFO L225 Difference]: With dead ends: 4864 [2024-12-02 11:45:50,331 INFO L226 Difference]: Without dead ends: 2371 [2024-12-02 11:45:50,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:45:50,340 INFO L435 NwaCegarLoop]: 4413 mSDtfsCounter, 380 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 8435 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:50,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 8435 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:45:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2024-12-02 11:45:50,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2371. [2024-12-02 11:45:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2342 states have (on average 1.8373185311699403) internal successors, (4303), 2344 states have internal predecessors, (4303), 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) [2024-12-02 11:45:50,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 4345 transitions. [2024-12-02 11:45:50,443 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 4345 transitions. Word has length 121 [2024-12-02 11:45:50,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:50,444 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 4345 transitions. [2024-12-02 11:45:50,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 4345 transitions. [2024-12-02 11:45:50,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:50,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:50,448 INFO L218 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] [2024-12-02 11:45:50,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:45:50,448 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:50,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:50,449 INFO L85 PathProgramCache]: Analyzing trace with hash 2098914435, now seen corresponding path program 1 times [2024-12-02 11:45:50,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:50,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361182315] [2024-12-02 11:45:50,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:50,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:50,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:50,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361182315] [2024-12-02 11:45:50,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361182315] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:50,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:50,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:45:50,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405695980] [2024-12-02 11:45:50,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:50,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:45:50,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:50,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:45:50,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:45:50,662 INFO L87 Difference]: Start difference. First operand 2371 states and 4345 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:51,214 INFO L93 Difference]: Finished difference Result 2869 states and 5129 transitions. [2024-12-02 11:45:51,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:45:51,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:51,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:51,223 INFO L225 Difference]: With dead ends: 2869 [2024-12-02 11:45:51,224 INFO L226 Difference]: Without dead ends: 2634 [2024-12-02 11:45:51,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:51,226 INFO L435 NwaCegarLoop]: 4257 mSDtfsCounter, 4681 mSDsluCounter, 8668 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 12925 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:51,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 12925 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:45:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2024-12-02 11:45:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2615. [2024-12-02 11:45:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2563 states have (on average 1.815060476004682) internal successors, (4652), 2566 states have internal predecessors, (4652), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2024-12-02 11:45:51,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 4727 transitions. [2024-12-02 11:45:51,285 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 4727 transitions. Word has length 121 [2024-12-02 11:45:51,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:51,286 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 4727 transitions. [2024-12-02 11:45:51,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:51,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 4727 transitions. [2024-12-02 11:45:51,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:51,288 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:51,288 INFO L218 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] [2024-12-02 11:45:51,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:45:51,289 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:51,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:51,289 INFO L85 PathProgramCache]: Analyzing trace with hash -6866169, now seen corresponding path program 1 times [2024-12-02 11:45:51,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:51,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108155097] [2024-12-02 11:45:51,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:51,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:51,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:51,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108155097] [2024-12-02 11:45:51,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108155097] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:51,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:51,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:45:51,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546617011] [2024-12-02 11:45:51,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:51,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:45:51,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:51,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:45:51,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:51,442 INFO L87 Difference]: Start difference. First operand 2615 states and 4727 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:52,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:52,133 INFO L93 Difference]: Finished difference Result 3404 states and 5978 transitions. [2024-12-02 11:45:52,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:45:52,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:52,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:52,143 INFO L225 Difference]: With dead ends: 3404 [2024-12-02 11:45:52,143 INFO L226 Difference]: Without dead ends: 2925 [2024-12-02 11:45:52,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:45:52,145 INFO L435 NwaCegarLoop]: 4457 mSDtfsCounter, 4681 mSDsluCounter, 13380 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 17837 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:52,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 17837 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:45:52,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2024-12-02 11:45:52,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2842. [2024-12-02 11:45:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2767 states have (on average 1.795084929526563) internal successors, (4967), 2771 states have internal predecessors, (4967), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (57), 54 states have call predecessors, (57), 53 states have call successors, (57) [2024-12-02 11:45:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 5077 transitions. [2024-12-02 11:45:52,209 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 5077 transitions. Word has length 121 [2024-12-02 11:45:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:52,209 INFO L471 AbstractCegarLoop]: Abstraction has 2842 states and 5077 transitions. [2024-12-02 11:45:52,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 5077 transitions. [2024-12-02 11:45:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:52,211 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:52,211 INFO L218 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] [2024-12-02 11:45:52,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:45:52,211 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:52,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1873574843, now seen corresponding path program 1 times [2024-12-02 11:45:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:52,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65151679] [2024-12-02 11:45:52,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:52,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:52,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:52,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65151679] [2024-12-02 11:45:52,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65151679] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:52,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:52,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:45:52,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445424999] [2024-12-02 11:45:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:52,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:45:52,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:52,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:45:52,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:52,427 INFO L87 Difference]: Start difference. First operand 2842 states and 5077 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:53,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:53,194 INFO L93 Difference]: Finished difference Result 4125 states and 7107 transitions. [2024-12-02 11:45:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:45:53,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:53,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:53,211 INFO L225 Difference]: With dead ends: 4125 [2024-12-02 11:45:53,211 INFO L226 Difference]: Without dead ends: 3419 [2024-12-02 11:45:53,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:45:53,216 INFO L435 NwaCegarLoop]: 4453 mSDtfsCounter, 4676 mSDsluCounter, 13368 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4691 SdHoareTripleChecker+Valid, 17821 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:53,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4691 Valid, 17821 Invalid, 779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:45:53,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2024-12-02 11:45:53,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3325. [2024-12-02 11:45:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3202 states have (on average 1.7638975640224859) internal successors, (5648), 3210 states have internal predecessors, (5648), 85 states have call successors, (85), 30 states have call predecessors, (85), 36 states have return successors, (101), 88 states have call predecessors, (101), 85 states have call successors, (101) [2024-12-02 11:45:53,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 5834 transitions. [2024-12-02 11:45:53,373 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 5834 transitions. Word has length 121 [2024-12-02 11:45:53,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:53,373 INFO L471 AbstractCegarLoop]: Abstraction has 3325 states and 5834 transitions. [2024-12-02 11:45:53,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 5834 transitions. [2024-12-02 11:45:53,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:53,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:53,377 INFO L218 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] [2024-12-02 11:45:53,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:45:53,377 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:53,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:53,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1114250055, now seen corresponding path program 1 times [2024-12-02 11:45:53,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:53,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025148492] [2024-12-02 11:45:53,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:53,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:53,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:53,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025148492] [2024-12-02 11:45:53,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025148492] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:53,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:53,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:45:53,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321509372] [2024-12-02 11:45:53,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:53,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:45:53,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:53,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:45:53,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:53,583 INFO L87 Difference]: Start difference. First operand 3325 states and 5834 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:54,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:54,345 INFO L93 Difference]: Finished difference Result 5678 states and 9590 transitions. [2024-12-02 11:45:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:45:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:54,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:54,365 INFO L225 Difference]: With dead ends: 5678 [2024-12-02 11:45:54,365 INFO L226 Difference]: Without dead ends: 4489 [2024-12-02 11:45:54,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:45:54,370 INFO L435 NwaCegarLoop]: 4450 mSDtfsCounter, 4671 mSDsluCounter, 13359 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4686 SdHoareTripleChecker+Valid, 17809 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:54,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4686 Valid, 17809 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:45:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2024-12-02 11:45:54,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 4372. [2024-12-02 11:45:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 4147 states have (on average 1.7246202073788282) internal successors, (7152), 4169 states have internal predecessors, (7152), 149 states have call successors, (149), 54 states have call predecessors, (149), 74 states have return successors, (213), 156 states have call predecessors, (213), 149 states have call successors, (213) [2024-12-02 11:45:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 7514 transitions. [2024-12-02 11:45:54,529 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 7514 transitions. Word has length 121 [2024-12-02 11:45:54,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:54,529 INFO L471 AbstractCegarLoop]: Abstraction has 4372 states and 7514 transitions. [2024-12-02 11:45:54,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 7514 transitions. [2024-12-02 11:45:54,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:54,532 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:54,533 INFO L218 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] [2024-12-02 11:45:54,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:45:54,533 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:54,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1283220475, now seen corresponding path program 1 times [2024-12-02 11:45:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:54,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109735187] [2024-12-02 11:45:54,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:54,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:54,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109735187] [2024-12-02 11:45:54,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109735187] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:54,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:54,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:45:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804233795] [2024-12-02 11:45:54,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:54,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:45:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:54,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:45:54,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:54,686 INFO L87 Difference]: Start difference. First operand 4372 states and 7514 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:55,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:55,404 INFO L93 Difference]: Finished difference Result 9089 states and 15208 transitions. [2024-12-02 11:45:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:45:55,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:55,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:55,425 INFO L225 Difference]: With dead ends: 9089 [2024-12-02 11:45:55,425 INFO L226 Difference]: Without dead ends: 6853 [2024-12-02 11:45:55,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:45:55,432 INFO L435 NwaCegarLoop]: 4447 mSDtfsCounter, 4666 mSDsluCounter, 13350 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 17797 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:55,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 17797 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:45:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2024-12-02 11:45:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 6691. [2024-12-02 11:45:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 6244 states have (on average 1.6899423446508648) internal successors, (10552), 6312 states have internal predecessors, (10552), 277 states have call successors, (277), 102 states have call predecessors, (277), 168 states have return successors, (533), 292 states have call predecessors, (533), 277 states have call successors, (533) [2024-12-02 11:45:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 11362 transitions. [2024-12-02 11:45:55,590 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 11362 transitions. Word has length 121 [2024-12-02 11:45:55,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:55,590 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 11362 transitions. [2024-12-02 11:45:55,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:55,590 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 11362 transitions. [2024-12-02 11:45:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:55,593 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:55,593 INFO L218 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] [2024-12-02 11:45:55,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:45:55,593 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:55,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:55,593 INFO L85 PathProgramCache]: Analyzing trace with hash -252179577, now seen corresponding path program 1 times [2024-12-02 11:45:55,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:55,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052911519] [2024-12-02 11:45:55,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:55,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:55,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052911519] [2024-12-02 11:45:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052911519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:55,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:55,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:45:55,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507767085] [2024-12-02 11:45:55,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:55,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:45:55,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:55,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:45:55,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:55,698 INFO L87 Difference]: Start difference. First operand 6691 states and 11362 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:56,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:56,467 INFO L93 Difference]: Finished difference Result 16752 states and 28378 transitions. [2024-12-02 11:45:56,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:45:56,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:56,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:56,517 INFO L225 Difference]: With dead ends: 16752 [2024-12-02 11:45:56,517 INFO L226 Difference]: Without dead ends: 12197 [2024-12-02 11:45:56,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:45:56,530 INFO L435 NwaCegarLoop]: 4444 mSDtfsCounter, 4661 mSDsluCounter, 13341 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 17785 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:56,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4676 Valid, 17785 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:45:56,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12197 states. [2024-12-02 11:45:56,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12197 to 11950. [2024-12-02 11:45:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11005 states have (on average 1.674148114493412) internal successors, (18424), 11219 states have internal predecessors, (18424), 533 states have call successors, (533), 198 states have call predecessors, (533), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-12-02 11:45:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 20514 transitions. [2024-12-02 11:45:56,991 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 20514 transitions. Word has length 121 [2024-12-02 11:45:56,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:56,991 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 20514 transitions. [2024-12-02 11:45:56,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 20514 transitions. [2024-12-02 11:45:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:56,999 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:56,999 INFO L218 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] [2024-12-02 11:45:56,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:45:56,999 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:56,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash 2136384453, now seen corresponding path program 1 times [2024-12-02 11:45:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:57,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516522614] [2024-12-02 11:45:57,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:57,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:57,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:57,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516522614] [2024-12-02 11:45:57,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516522614] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:57,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:57,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:45:57,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339456987] [2024-12-02 11:45:57,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:57,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:45:57,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:57,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:45:57,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:45:57,127 INFO L87 Difference]: Start difference. First operand 11950 states and 20514 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:57,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:57,796 INFO L93 Difference]: Finished difference Result 24214 states and 42303 transitions. [2024-12-02 11:45:57,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:45:57,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:57,855 INFO L225 Difference]: With dead ends: 24214 [2024-12-02 11:45:57,855 INFO L226 Difference]: Without dead ends: 14400 [2024-12-02 11:45:57,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:57,883 INFO L435 NwaCegarLoop]: 4234 mSDtfsCounter, 4467 mSDsluCounter, 8363 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4482 SdHoareTripleChecker+Valid, 12597 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:57,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4482 Valid, 12597 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:45:57,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14400 states. [2024-12-02 11:45:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14400 to 11950. [2024-12-02 11:45:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11005 states have (on average 1.6711494775102227) internal successors, (18391), 11219 states have internal predecessors, (18391), 533 states have call successors, (533), 198 states have call predecessors, (533), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-12-02 11:45:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 20481 transitions. [2024-12-02 11:45:58,403 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 20481 transitions. Word has length 121 [2024-12-02 11:45:58,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:58,403 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 20481 transitions. [2024-12-02 11:45:58,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 20481 transitions. [2024-12-02 11:45:58,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:45:58,410 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:58,410 INFO L218 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] [2024-12-02 11:45:58,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:45:58,410 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:58,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:58,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1079653251, now seen corresponding path program 1 times [2024-12-02 11:45:58,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:58,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145801727] [2024-12-02 11:45:58,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:58,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:45:58,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:58,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145801727] [2024-12-02 11:45:58,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145801727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:58,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:58,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:45:58,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289750371] [2024-12-02 11:45:58,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:58,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:45:58,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:58,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:45:58,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:45:58,556 INFO L87 Difference]: Start difference. First operand 11950 states and 20481 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:45:59,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:59,839 INFO L93 Difference]: Finished difference Result 35559 states and 61998 transitions. [2024-12-02 11:45:59,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:45:59,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:45:59,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:59,963 INFO L225 Difference]: With dead ends: 35559 [2024-12-02 11:45:59,963 INFO L226 Difference]: Without dead ends: 25745 [2024-12-02 11:45:59,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:45:59,995 INFO L435 NwaCegarLoop]: 4430 mSDtfsCounter, 4869 mSDsluCounter, 13297 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 17727 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:59,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 17727 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:46:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25745 states. [2024-12-02 11:46:00,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25745 to 23587. [2024-12-02 11:46:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23587 states, 21516 states have (on average 1.6716397099832683) internal successors, (35967), 22184 states have internal predecessors, (35967), 1013 states have call successors, (1013), 390 states have call predecessors, (1013), 1056 states have return successors, (5109), 1076 states have call predecessors, (5109), 1013 states have call successors, (5109) [2024-12-02 11:46:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23587 states to 23587 states and 42089 transitions. [2024-12-02 11:46:00,849 INFO L78 Accepts]: Start accepts. Automaton has 23587 states and 42089 transitions. Word has length 121 [2024-12-02 11:46:00,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:00,849 INFO L471 AbstractCegarLoop]: Abstraction has 23587 states and 42089 transitions. [2024-12-02 11:46:00,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:46:00,849 INFO L276 IsEmpty]: Start isEmpty. Operand 23587 states and 42089 transitions. [2024-12-02 11:46:00,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:46:00,858 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:00,859 INFO L218 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] [2024-12-02 11:46:00,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:46:00,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:00,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:00,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1863928827, now seen corresponding path program 1 times [2024-12-02 11:46:00,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:00,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26945688] [2024-12-02 11:46:00,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:46:01,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:01,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26945688] [2024-12-02 11:46:01,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26945688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:46:01,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:46:01,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:46:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264220396] [2024-12-02 11:46:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:46:01,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:46:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:46:01,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:46:01,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:46:01,003 INFO L87 Difference]: Start difference. First operand 23587 states and 42089 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:46:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:02,844 INFO L93 Difference]: Finished difference Result 75552 states and 141096 transitions. [2024-12-02 11:46:02,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:46:02,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:46:02,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:03,106 INFO L225 Difference]: With dead ends: 75552 [2024-12-02 11:46:03,106 INFO L226 Difference]: Without dead ends: 54101 [2024-12-02 11:46:03,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:46:03,160 INFO L435 NwaCegarLoop]: 4426 mSDtfsCounter, 4702 mSDsluCounter, 13285 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 17711 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:03,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4716 Valid, 17711 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:46:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54101 states. [2024-12-02 11:46:05,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54101 to 50154. [2024-12-02 11:46:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50154 states, 45377 states have (on average 1.6838266081935782) internal successors, (76407), 47439 states have internal predecessors, (76407), 1941 states have call successors, (1941), 774 states have call predecessors, (1941), 2834 states have return successors, (18325), 2068 states have call predecessors, (18325), 1941 states have call successors, (18325) [2024-12-02 11:46:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50154 states to 50154 states and 96673 transitions. [2024-12-02 11:46:05,467 INFO L78 Accepts]: Start accepts. Automaton has 50154 states and 96673 transitions. Word has length 121 [2024-12-02 11:46:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:05,467 INFO L471 AbstractCegarLoop]: Abstraction has 50154 states and 96673 transitions. [2024-12-02 11:46:05,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:46:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 50154 states and 96673 transitions. [2024-12-02 11:46:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:46:05,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:05,482 INFO L218 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] [2024-12-02 11:46:05,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:46:05,482 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:05,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:05,483 INFO L85 PathProgramCache]: Analyzing trace with hash 812063555, now seen corresponding path program 1 times [2024-12-02 11:46:05,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:05,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098622562] [2024-12-02 11:46:05,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:05,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:46:05,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:05,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098622562] [2024-12-02 11:46:05,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098622562] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:46:05,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:46:05,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:46:05,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987945317] [2024-12-02 11:46:05,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:46:05,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:46:05,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:46:05,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:46:05,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:46:05,729 INFO L87 Difference]: Start difference. First operand 50154 states and 96673 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:46:09,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:09,871 INFO L93 Difference]: Finished difference Result 167287 states and 347998 transitions. [2024-12-02 11:46:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:46:09,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:46:09,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:10,602 INFO L225 Difference]: With dead ends: 167287 [2024-12-02 11:46:10,602 INFO L226 Difference]: Without dead ends: 119269 [2024-12-02 11:46:10,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:46:10,701 INFO L435 NwaCegarLoop]: 4424 mSDtfsCounter, 4799 mSDsluCounter, 13279 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4822 SdHoareTripleChecker+Valid, 17703 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:10,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4822 Valid, 17703 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:46:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119269 states. [2024-12-02 11:46:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119269 to 112829. [2024-12-02 11:46:17,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112829 states, 101246 states have (on average 1.7000474092803666) internal successors, (172123), 107554 states have internal predecessors, (172123), 3733 states have call successors, (3733), 1542 states have call predecessors, (3733), 7848 states have return successors, (69269), 3988 states have call predecessors, (69269), 3733 states have call successors, (69269) [2024-12-02 11:46:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112829 states to 112829 states and 245125 transitions. [2024-12-02 11:46:18,300 INFO L78 Accepts]: Start accepts. Automaton has 112829 states and 245125 transitions. Word has length 121 [2024-12-02 11:46:18,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:18,300 INFO L471 AbstractCegarLoop]: Abstraction has 112829 states and 245125 transitions. [2024-12-02 11:46:18,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:46:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand 112829 states and 245125 transitions. [2024-12-02 11:46:18,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:46:18,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:18,321 INFO L218 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] [2024-12-02 11:46:18,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:46:18,321 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:18,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:18,321 INFO L85 PathProgramCache]: Analyzing trace with hash -71445435, now seen corresponding path program 1 times [2024-12-02 11:46:18,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:18,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946110758] [2024-12-02 11:46:18,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:18,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:46:18,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:18,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946110758] [2024-12-02 11:46:18,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946110758] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:46:18,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:46:18,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:46:18,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669425267] [2024-12-02 11:46:18,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:46:18,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:46:18,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:46:18,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:46:18,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:46:18,430 INFO L87 Difference]: Start difference. First operand 112829 states and 245125 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:46:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:27,721 INFO L93 Difference]: Finished difference Result 383334 states and 932916 transitions. [2024-12-02 11:46:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:46:27,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:46:27,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:29,116 INFO L225 Difference]: With dead ends: 383334 [2024-12-02 11:46:29,116 INFO L226 Difference]: Without dead ends: 272641 [2024-12-02 11:46:30,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:46:30,015 INFO L435 NwaCegarLoop]: 4421 mSDtfsCounter, 4764 mSDsluCounter, 13270 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 17691 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:30,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 17691 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:46:30,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272641 states. [2024-12-02 11:46:53,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272641 to 261852. [2024-12-02 11:46:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261852 states, 232411 states have (on average 1.7131848320432337) internal successors, (398163), 251585 states have internal predecessors, (398163), 7189 states have call successors, (7189), 3078 states have call predecessors, (7189), 22250 states have return successors, (269333), 7700 states have call predecessors, (269333), 7189 states have call successors, (269333) [2024-12-02 11:46:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261852 states to 261852 states and 674685 transitions. [2024-12-02 11:46:55,868 INFO L78 Accepts]: Start accepts. Automaton has 261852 states and 674685 transitions. Word has length 121 [2024-12-02 11:46:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:55,869 INFO L471 AbstractCegarLoop]: Abstraction has 261852 states and 674685 transitions. [2024-12-02 11:46:55,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:46:55,869 INFO L276 IsEmpty]: Start isEmpty. Operand 261852 states and 674685 transitions. [2024-12-02 11:46:55,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:46:55,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:55,920 INFO L218 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] [2024-12-02 11:46:55,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:46:55,921 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:55,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash -99945725, now seen corresponding path program 1 times [2024-12-02 11:46:55,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:55,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703859479] [2024-12-02 11:46:55,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:55,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:56,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:46:56,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:56,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703859479] [2024-12-02 11:46:56,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703859479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:46:56,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:46:56,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:46:56,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190871180] [2024-12-02 11:46:56,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:46:56,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:46:56,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:46:56,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:46:56,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:46:56,235 INFO L87 Difference]: Start difference. First operand 261852 states and 674685 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 11:47:25,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:25,023 INFO L93 Difference]: Finished difference Result 895337 states and 2702882 transitions. [2024-12-02 11:47:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:47:25,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 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 121 [2024-12-02 11:47:25,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:30,672 INFO L225 Difference]: With dead ends: 895337 [2024-12-02 11:47:30,672 INFO L226 Difference]: Without dead ends: 635621 [2024-12-02 11:47:32,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:47:32,100 INFO L435 NwaCegarLoop]: 4418 mSDtfsCounter, 4658 mSDsluCounter, 13261 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 17679 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:32,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4672 Valid, 17679 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:47:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635621 states. [2024-12-02 11:48:47,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635621 to 618179. [2024-12-02 11:48:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618179 states, 540156 states have (on average 1.7184054236183621) internal successors, (928207), 598184 states have internal predecessors, (928207), 13845 states have call successors, (13845), 6150 states have call predecessors, (13845), 64176 states have return successors, (1062421), 14868 states have call predecessors, (1062421), 13845 states have call successors, (1062421)