./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.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_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44eeab2214dc0ded69d35958321f99e16f5908b9c493335962885511690c0d86 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:33:55,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:33:55,185 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:33:55,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:33:55,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:33:55,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:33:55,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:33:55,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:33:55,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:33:55,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:33:55,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:33:55,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:33:55,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:33:55,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:33:55,254 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:33:55,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:33:55,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:33:55,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:33:55,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:33:55,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:33:55,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:33:55,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:33:55,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:33:55,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:33:55,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:33:55,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:33:55,255 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:33:55,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:33:55,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:33:55,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:33:55,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:33:55,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:33:55,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:55,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:33:55,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:33:55,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:33:55,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:33:55,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:55,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:33:55,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:33:55,260 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:33:55,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:33:55,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:33:55,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:33:55,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:33:55,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:33:55,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:33:55,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:33:55,261 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_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44eeab2214dc0ded69d35958321f99e16f5908b9c493335962885511690c0d86 [2024-11-27 20:33:55,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:33:55,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:33:55,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:33:55,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:33:55,682 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:33:55,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.cil-1.c [2024-11-27 20:33:59,029 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/data/4a174061f/4742edc653c3428ba131e95e8153ea5c/FLAGec786a3d0 [2024-11-27 20:33:59,963 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:33:59,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.cil-1.c [2024-11-27 20:34:00,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/data/4a174061f/4742edc653c3428ba131e95e8153ea5c/FLAGec786a3d0 [2024-11-27 20:34:00,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/data/4a174061f/4742edc653c3428ba131e95e8153ea5c [2024-11-27 20:34:00,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:34:00,061 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:34:00,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:34:00,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:34:00,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:34:00,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:34:00" (1/1) ... [2024-11-27 20:34:00,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0fdf37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:00, skipping insertion in model container [2024-11-27 20:34:00,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:34:00" (1/1) ... [2024-11-27 20:34:00,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:34:02,662 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_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.cil-1.c[378560,378573] [2024-11-27 20:34:02,723 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_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.cil-1.c[383339,383352] [2024-11-27 20:34:03,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:34:03,116 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:34:04,352 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_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.cil-1.c[378560,378573] [2024-11-27 20:34:04,360 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_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/sv-benchmarks/c/combinations/Problem05_label42+token_ring.09.cil-1.c[383339,383352] [2024-11-27 20:34:04,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:34:04,461 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:34:04,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04 WrapperNode [2024-11-27 20:34:04,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:34:04,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:34:04,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:34:04,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:34:04,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:04,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,038 INFO L138 Inliner]: procedures = 62, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13040 [2024-11-27 20:34:05,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:34:05,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:34:05,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:34:05,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:34:05,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,300 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:34:05,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,508 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:34:05,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:34:05,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:34:05,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:34:05,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (1/1) ... [2024-11-27 20:34:05,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:34:05,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:05,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:34:05,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a2853ab-d9de-4fc4-81c1-d7c1490edbf1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-27 20:34:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-27 20:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-27 20:34:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-27 20:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-27 20:34:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-27 20:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-27 20:34:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-27 20:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-27 20:34:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-27 20:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-27 20:34:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-27 20:34:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:34:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:34:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:34:06,144 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:34:06,146 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:34:19,975 INFO L? ?]: Removed 1737 outVars from TransFormulas that were not future-live. [2024-11-27 20:34:19,976 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:34:20,063 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:34:20,063 INFO L312 CfgBuilder]: Removed 26 assume(true) statements. [2024-11-27 20:34:20,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:34:20 BoogieIcfgContainer [2024-11-27 20:34:20,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:34:20,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:34:20,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:34:20,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:34:20,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:34:00" (1/3) ... [2024-11-27 20:34:20,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206fbdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:34:20, skipping insertion in model container [2024-11-27 20:34:20,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:34:04" (2/3) ... [2024-11-27 20:34:20,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206fbdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:34:20, skipping insertion in model container [2024-11-27 20:34:20,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:34:20" (3/3) ... [2024-11-27 20:34:20,081 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.09.cil-1.c [2024-11-27 20:34:20,102 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:34:20,106 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label42+token_ring.09.cil-1.c that has 7 procedures, 2488 locations, 1 initial locations, 13 loop locations, and 2 error locations. [2024-11-27 20:34:20,304 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:34:20,325 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;@7484c2b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:34:20,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 20:34:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 2488 states, 2457 states have (on average 1.846967846967847) internal successors, (4538), 2459 states have internal predecessors, (4538), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:34:20,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:20,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:20,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:20,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:20,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash -129861132, now seen corresponding path program 1 times [2024-11-27 20:34:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:20,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877517033] [2024-11-27 20:34:20,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:20,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:21,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:21,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:21,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877517033] [2024-11-27 20:34:21,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877517033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:21,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:21,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:21,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464821709] [2024-11-27 20:34:21,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:21,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:21,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:21,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:21,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:21,070 INFO L87 Difference]: Start difference. First operand has 2488 states, 2457 states have (on average 1.846967846967847) internal successors, (4538), 2459 states have internal predecessors, (4538), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-11-27 20:34:21,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:21,432 INFO L93 Difference]: Finished difference Result 4968 states and 9153 transitions. [2024-11-27 20:34:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:21,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:21,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:21,478 INFO L225 Difference]: With dead ends: 4968 [2024-11-27 20:34:21,478 INFO L226 Difference]: Without dead ends: 2421 [2024-11-27 20:34:21,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:21,499 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 466 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 8517 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:21,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 8517 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:21,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2024-11-27 20:34:21,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2024-11-27 20:34:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2390 states have (on average 1.8330543933054393) internal successors, (4381), 2392 states have internal predecessors, (4381), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:34:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4427 transitions. [2024-11-27 20:34:21,783 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4427 transitions. Word has length 143 [2024-11-27 20:34:21,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:21,790 INFO L471 AbstractCegarLoop]: Abstraction has 2421 states and 4427 transitions. [2024-11-27 20:34:21,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-11-27 20:34:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4427 transitions. [2024-11-27 20:34:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:21,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:21,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:21,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:34:21,811 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:21,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:21,813 INFO L85 PathProgramCache]: Analyzing trace with hash -418680522, now seen corresponding path program 1 times [2024-11-27 20:34:21,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:21,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034694832] [2024-11-27 20:34:21,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:21,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:22,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:22,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034694832] [2024-11-27 20:34:22,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034694832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:22,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:22,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:34:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665361422] [2024-11-27 20:34:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:22,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:34:22,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:22,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:34:22,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:22,382 INFO L87 Difference]: Start difference. First operand 2421 states and 4427 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-11-27 20:34:23,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:23,529 INFO L93 Difference]: Finished difference Result 3023 states and 5383 transitions. [2024-11-27 20:34:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:34:23,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:23,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:23,552 INFO L225 Difference]: With dead ends: 3023 [2024-11-27 20:34:23,552 INFO L226 Difference]: Without dead ends: 2740 [2024-11-27 20:34:23,556 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 [2024-11-27 20:34:23,559 INFO L435 NwaCegarLoop]: 4321 mSDtfsCounter, 4851 mSDsluCounter, 8836 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4868 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:23,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4868 Valid, 13157 Invalid, 559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:34:23,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2024-11-27 20:34:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2717. [2024-11-27 20:34:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2661 states have (on average 1.8083427282976325) internal successors, (4812), 2664 states have internal predecessors, (4812), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2024-11-27 20:34:23,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 4895 transitions. [2024-11-27 20:34:23,672 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 4895 transitions. Word has length 143 [2024-11-27 20:34:23,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:23,674 INFO L471 AbstractCegarLoop]: Abstraction has 2717 states and 4895 transitions. [2024-11-27 20:34:23,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-11-27 20:34:23,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 4895 transitions. [2024-11-27 20:34:23,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:23,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:23,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:23,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:34:23,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:23,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:23,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1102684602, now seen corresponding path program 1 times [2024-11-27 20:34:23,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:23,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540364998] [2024-11-27 20:34:23,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:23,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:24,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:24,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540364998] [2024-11-27 20:34:24,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540364998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:24,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:24,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:24,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835400680] [2024-11-27 20:34:24,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:24,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:24,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:24,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:24,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:24,122 INFO L87 Difference]: Start difference. First operand 2717 states and 4895 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:25,401 INFO L93 Difference]: Finished difference Result 3674 states and 6428 transitions. [2024-11-27 20:34:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:25,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:25,420 INFO L225 Difference]: With dead ends: 3674 [2024-11-27 20:34:25,420 INFO L226 Difference]: Without dead ends: 3095 [2024-11-27 20:34:25,423 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 [2024-11-27 20:34:25,425 INFO L435 NwaCegarLoop]: 4567 mSDtfsCounter, 4855 mSDsluCounter, 13728 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 18295 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:25,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4872 Valid, 18295 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:34:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2024-11-27 20:34:25,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2992. [2024-11-27 20:34:25,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2911 states have (on average 1.7866712469941601) internal successors, (5201), 2915 states have internal predecessors, (5201), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (63), 60 states have call predecessors, (63), 59 states have call successors, (63) [2024-11-27 20:34:25,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 5323 transitions. [2024-11-27 20:34:25,552 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 5323 transitions. Word has length 143 [2024-11-27 20:34:25,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:25,553 INFO L471 AbstractCegarLoop]: Abstraction has 2992 states and 5323 transitions. [2024-11-27 20:34:25,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 5323 transitions. [2024-11-27 20:34:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:25,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:25,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:25,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:34:25,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:25,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash -947724296, now seen corresponding path program 1 times [2024-11-27 20:34:25,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:25,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373929297] [2024-11-27 20:34:25,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:25,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:25,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:25,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373929297] [2024-11-27 20:34:25,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373929297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:25,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:25,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:25,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773187225] [2024-11-27 20:34:25,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:25,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:25,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:25,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:25,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:25,895 INFO L87 Difference]: Start difference. First operand 2992 states and 5323 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:27,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:27,159 INFO L93 Difference]: Finished difference Result 4543 states and 7799 transitions. [2024-11-27 20:34:27,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:27,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:27,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:27,181 INFO L225 Difference]: With dead ends: 4543 [2024-11-27 20:34:27,182 INFO L226 Difference]: Without dead ends: 3689 [2024-11-27 20:34:27,187 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 [2024-11-27 20:34:27,189 INFO L435 NwaCegarLoop]: 4559 mSDtfsCounter, 4847 mSDsluCounter, 13706 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 18265 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:27,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 18265 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:34:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2024-11-27 20:34:27,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3576. [2024-11-27 20:34:27,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3443 states have (on average 1.7542840546035434) internal successors, (6040), 3451 states have internal predecessors, (6040), 95 states have call successors, (95), 30 states have call predecessors, (95), 36 states have return successors, (111), 98 states have call predecessors, (111), 95 states have call successors, (111) [2024-11-27 20:34:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 6246 transitions. [2024-11-27 20:34:27,367 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 6246 transitions. Word has length 143 [2024-11-27 20:34:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:27,367 INFO L471 AbstractCegarLoop]: Abstraction has 3576 states and 6246 transitions. [2024-11-27 20:34:27,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:27,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 6246 transitions. [2024-11-27 20:34:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:27,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:27,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:27,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:34:27,373 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:27,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2040359498, now seen corresponding path program 1 times [2024-11-27 20:34:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:27,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954212497] [2024-11-27 20:34:27,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:27,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:27,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:27,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954212497] [2024-11-27 20:34:27,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954212497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:27,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:27,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:27,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109868460] [2024-11-27 20:34:27,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:27,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:27,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:27,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:27,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:27,630 INFO L87 Difference]: Start difference. First operand 3576 states and 6246 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:28,886 INFO L93 Difference]: Finished difference Result 6423 states and 10828 transitions. [2024-11-27 20:34:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:28,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:28,916 INFO L225 Difference]: With dead ends: 6423 [2024-11-27 20:34:28,916 INFO L226 Difference]: Without dead ends: 4985 [2024-11-27 20:34:28,922 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 [2024-11-27 20:34:28,923 INFO L435 NwaCegarLoop]: 4556 mSDtfsCounter, 4842 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4859 SdHoareTripleChecker+Valid, 18253 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:28,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4859 Valid, 18253 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:34:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2024-11-27 20:34:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 4843. [2024-11-27 20:34:29,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 4600 states have (on average 1.7165217391304348) internal successors, (7896), 4622 states have internal predecessors, (7896), 167 states have call successors, (167), 54 states have call predecessors, (167), 74 states have return successors, (231), 174 states have call predecessors, (231), 167 states have call successors, (231) [2024-11-27 20:34:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 8294 transitions. [2024-11-27 20:34:29,186 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 8294 transitions. Word has length 143 [2024-11-27 20:34:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:29,187 INFO L471 AbstractCegarLoop]: Abstraction has 4843 states and 8294 transitions. [2024-11-27 20:34:29,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 8294 transitions. [2024-11-27 20:34:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:29,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:29,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:29,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:34:29,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:29,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash 972435512, now seen corresponding path program 1 times [2024-11-27 20:34:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:29,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051264815] [2024-11-27 20:34:29,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:29,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:29,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:29,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051264815] [2024-11-27 20:34:29,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051264815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:29,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:29,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:29,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284302320] [2024-11-27 20:34:29,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:29,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:29,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:29,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:29,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:29,574 INFO L87 Difference]: Start difference. First operand 4843 states and 8294 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:30,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:30,910 INFO L93 Difference]: Finished difference Result 10560 states and 17682 transitions. [2024-11-27 20:34:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:30,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:30,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:30,967 INFO L225 Difference]: With dead ends: 10560 [2024-11-27 20:34:30,968 INFO L226 Difference]: Without dead ends: 7855 [2024-11-27 20:34:30,980 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 [2024-11-27 20:34:30,982 INFO L435 NwaCegarLoop]: 4553 mSDtfsCounter, 4837 mSDsluCounter, 13688 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4854 SdHoareTripleChecker+Valid, 18241 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:30,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4854 Valid, 18241 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:34:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7855 states. [2024-11-27 20:34:31,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7855 to 7656. [2024-11-27 20:34:31,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7656 states, 7175 states have (on average 1.6875261324041813) internal successors, (12108), 7243 states have internal predecessors, (12108), 311 states have call successors, (311), 102 states have call predecessors, (311), 168 states have return successors, (567), 326 states have call predecessors, (567), 311 states have call successors, (567) [2024-11-27 20:34:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7656 states to 7656 states and 12986 transitions. [2024-11-27 20:34:31,384 INFO L78 Accepts]: Start accepts. Automaton has 7656 states and 12986 transitions. Word has length 143 [2024-11-27 20:34:31,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:31,384 INFO L471 AbstractCegarLoop]: Abstraction has 7656 states and 12986 transitions. [2024-11-27 20:34:31,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 7656 states and 12986 transitions. [2024-11-27 20:34:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:31,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:31,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:31,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:34:31,393 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:31,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash -870040202, now seen corresponding path program 1 times [2024-11-27 20:34:31,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:31,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93134545] [2024-11-27 20:34:31,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:31,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:31,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:31,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93134545] [2024-11-27 20:34:31,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93134545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:31,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:31,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:31,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853383225] [2024-11-27 20:34:31,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:31,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:31,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:31,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:31,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:31,610 INFO L87 Difference]: Start difference. First operand 7656 states and 12986 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:33,005 INFO L93 Difference]: Finished difference Result 19891 states and 33756 transitions. [2024-11-27 20:34:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:33,091 INFO L225 Difference]: With dead ends: 19891 [2024-11-27 20:34:33,091 INFO L226 Difference]: Without dead ends: 14373 [2024-11-27 20:34:33,117 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 [2024-11-27 20:34:33,118 INFO L435 NwaCegarLoop]: 4343 mSDtfsCounter, 4864 mSDsluCounter, 13191 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 17534 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:33,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 17534 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:34:33,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14373 states. [2024-11-27 20:34:33,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14373 to 14065. [2024-11-27 20:34:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14065 states, 13054 states have (on average 1.67979163474797) internal successors, (21928), 13268 states have internal predecessors, (21928), 599 states have call successors, (599), 198 states have call predecessors, (599), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-27 20:34:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14065 states to 14065 states and 24150 transitions. [2024-11-27 20:34:33,939 INFO L78 Accepts]: Start accepts. Automaton has 14065 states and 24150 transitions. Word has length 143 [2024-11-27 20:34:33,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:33,939 INFO L471 AbstractCegarLoop]: Abstraction has 14065 states and 24150 transitions. [2024-11-27 20:34:33,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:33,940 INFO L276 IsEmpty]: Start isEmpty. Operand 14065 states and 24150 transitions. [2024-11-27 20:34:33,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:33,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:33,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:33,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:34:33,951 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:33,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:33,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1702924408, now seen corresponding path program 1 times [2024-11-27 20:34:33,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:33,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463570917] [2024-11-27 20:34:33,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:33,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:34,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:34,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:34,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463570917] [2024-11-27 20:34:34,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463570917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:34,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:34,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:34:34,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659380663] [2024-11-27 20:34:34,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:34,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:34:34,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:34,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:34:34,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:34,200 INFO L87 Difference]: Start difference. First operand 14065 states and 24150 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:35,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:35,289 INFO L93 Difference]: Finished difference Result 29422 states and 51531 transitions. [2024-11-27 20:34:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:34:35,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:35,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:35,384 INFO L225 Difference]: With dead ends: 29422 [2024-11-27 20:34:35,384 INFO L226 Difference]: Without dead ends: 17495 [2024-11-27 20:34:35,433 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 [2024-11-27 20:34:35,433 INFO L435 NwaCegarLoop]: 4298 mSDtfsCounter, 4585 mSDsluCounter, 8471 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4602 SdHoareTripleChecker+Valid, 12769 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:35,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4602 Valid, 12769 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:34:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17495 states. [2024-11-27 20:34:36,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17495 to 14065. [2024-11-27 20:34:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14065 states, 13054 states have (on average 1.6772636739696645) internal successors, (21895), 13268 states have internal predecessors, (21895), 599 states have call successors, (599), 198 states have call predecessors, (599), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-27 20:34:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14065 states to 14065 states and 24117 transitions. [2024-11-27 20:34:36,488 INFO L78 Accepts]: Start accepts. Automaton has 14065 states and 24117 transitions. Word has length 143 [2024-11-27 20:34:36,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:36,488 INFO L471 AbstractCegarLoop]: Abstraction has 14065 states and 24117 transitions. [2024-11-27 20:34:36,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:36,489 INFO L276 IsEmpty]: Start isEmpty. Operand 14065 states and 24117 transitions. [2024-11-27 20:34:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:36,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:36,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:36,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:34:36,501 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:36,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:36,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1370281270, now seen corresponding path program 1 times [2024-11-27 20:34:36,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:36,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640273115] [2024-11-27 20:34:36,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:36,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:36,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640273115] [2024-11-27 20:34:36,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640273115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:36,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:36,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:36,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594558077] [2024-11-27 20:34:36,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:36,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:36,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:36,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:36,839 INFO L87 Difference]: Start difference. First operand 14065 states and 24117 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:39,297 INFO L93 Difference]: Finished difference Result 41232 states and 72411 transitions. [2024-11-27 20:34:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:39,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:39,464 INFO L225 Difference]: With dead ends: 41232 [2024-11-27 20:34:39,464 INFO L226 Difference]: Without dead ends: 29305 [2024-11-27 20:34:39,513 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 [2024-11-27 20:34:39,514 INFO L435 NwaCegarLoop]: 4542 mSDtfsCounter, 4819 mSDsluCounter, 13656 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 18198 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:39,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 18198 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:34:39,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29305 states. [2024-11-27 20:34:41,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29305 to 28827. [2024-11-27 20:34:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28827 states, 26594 states have (on average 1.687937128675641) internal successors, (44889), 27262 states have internal predecessors, (44889), 1175 states have call successors, (1175), 390 states have call predecessors, (1175), 1056 states have return successors, (5271), 1238 states have call predecessors, (5271), 1175 states have call successors, (5271) [2024-11-27 20:34:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28827 states to 28827 states and 51335 transitions. [2024-11-27 20:34:41,365 INFO L78 Accepts]: Start accepts. Automaton has 28827 states and 51335 transitions. Word has length 143 [2024-11-27 20:34:41,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:41,366 INFO L471 AbstractCegarLoop]: Abstraction has 28827 states and 51335 transitions. [2024-11-27 20:34:41,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:41,366 INFO L276 IsEmpty]: Start isEmpty. Operand 28827 states and 51335 transitions. [2024-11-27 20:34:41,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:41,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:41,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:41,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:34:41,381 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:41,383 INFO L85 PathProgramCache]: Analyzing trace with hash -995753800, now seen corresponding path program 1 times [2024-11-27 20:34:41,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:41,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021107271] [2024-11-27 20:34:41,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:41,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:41,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:41,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021107271] [2024-11-27 20:34:41,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021107271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:41,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:41,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:41,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769343663] [2024-11-27 20:34:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:41,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:41,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:41,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:41,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:41,616 INFO L87 Difference]: Start difference. First operand 28827 states and 51335 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:45,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:45,521 INFO L93 Difference]: Finished difference Result 91456 states and 170595 transitions. [2024-11-27 20:34:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:45,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:45,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:45,822 INFO L225 Difference]: With dead ends: 91456 [2024-11-27 20:34:45,822 INFO L226 Difference]: Without dead ends: 64767 [2024-11-27 20:34:45,897 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 [2024-11-27 20:34:45,899 INFO L435 NwaCegarLoop]: 4539 mSDtfsCounter, 4814 mSDsluCounter, 13647 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4831 SdHoareTripleChecker+Valid, 18186 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:45,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4831 Valid, 18186 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:34:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64767 states. [2024-11-27 20:34:49,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64767 to 63940. [2024-11-27 20:34:49,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63940 states, 58777 states have (on average 1.7109583680691427) internal successors, (100565), 60839 states have internal predecessors, (100565), 2327 states have call successors, (2327), 774 states have call predecessors, (2327), 2834 states have return successors, (18711), 2454 states have call predecessors, (18711), 2327 states have call successors, (18711) [2024-11-27 20:34:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63940 states to 63940 states and 121603 transitions. [2024-11-27 20:34:49,615 INFO L78 Accepts]: Start accepts. Automaton has 63940 states and 121603 transitions. Word has length 143 [2024-11-27 20:34:49,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:49,616 INFO L471 AbstractCegarLoop]: Abstraction has 63940 states and 121603 transitions. [2024-11-27 20:34:49,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 63940 states and 121603 transitions. [2024-11-27 20:34:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:34:49,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:49,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:49,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:34:49,655 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:49,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:49,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1006132470, now seen corresponding path program 1 times [2024-11-27 20:34:49,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:49,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438926992] [2024-11-27 20:34:49,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:49,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:49,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:49,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438926992] [2024-11-27 20:34:49,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438926992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:49,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:49,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:49,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54219043] [2024-11-27 20:34:49,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:49,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:49,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:49,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:49,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:49,956 INFO L87 Difference]: Start difference. First operand 63940 states and 121603 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-27 20:34:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:57,110 INFO L93 Difference]: Finished difference Result 218103 states and 440698 transitions. [2024-11-27 20:34:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:57,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 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 143 [2024-11-27 20:34:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:58,242 INFO L225 Difference]: With dead ends: 218103 [2024-11-27 20:34:58,243 INFO L226 Difference]: Without dead ends: 156301 [2024-11-27 20:34:58,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:58,485 INFO L435 NwaCegarLoop]: 4529 mSDtfsCounter, 4888 mSDsluCounter, 13614 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 18143 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:58,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 18143 Invalid, 1136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:34:58,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156301 states.