./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label44+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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/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 eebca77f45674e9c747126627d8fffbab7911c70d4e1d781272ecaec26772b5e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:35,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:35,584 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:31:35,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:35,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:35,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:35,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:35,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:35,632 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:35,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:35,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:35,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:35,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:35,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:35,635 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:35,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:35,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:35,636 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:31:35,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:31:35,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:31:35,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:35,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:35,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:35,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:35,637 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:31:35,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:35,638 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:35,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:35,638 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:35,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:35,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:35,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:35,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:35,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:35,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:35,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:35,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:35,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:35,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:35,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:35,640 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:35,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:35,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:31:35,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:31:35,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:35,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:35,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:35,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:35,641 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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/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 -> eebca77f45674e9c747126627d8fffbab7911c70d4e1d781272ecaec26772b5e [2024-11-27 23:31:35,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:35,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:35,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:35,975 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:35,975 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:35,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c [2024-11-27 23:31:38,914 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/data/3efae35e2/d58c9ae2e3e8479997bc071e31a0718c/FLAGdea6fc668 [2024-11-27 23:31:39,882 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:39,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c [2024-11-27 23:31:39,940 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/data/3efae35e2/d58c9ae2e3e8479997bc071e31a0718c/FLAGdea6fc668 [2024-11-27 23:31:39,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/data/3efae35e2/d58c9ae2e3e8479997bc071e31a0718c [2024-11-27 23:31:39,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:39,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:39,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:39,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:39,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:39,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:39" (1/1) ... [2024-11-27 23:31:39,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e26f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:39, skipping insertion in model container [2024-11-27 23:31:39,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:39" (1/1) ... [2024-11-27 23:31:40,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:42,056 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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[377340,377353] [2024-11-27 23:31:42,098 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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[383339,383352] [2024-11-27 23:31:42,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:42,386 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:43,502 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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[377340,377353] [2024-11-27 23:31:43,512 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_6a105a6d-32b7-443f-a5b9-f246ce1be11a/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[383339,383352] [2024-11-27 23:31:43,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:43,628 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:43,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43 WrapperNode [2024-11-27 23:31:43,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:43,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:43,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:43,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:43,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:43,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,278 INFO L138 Inliner]: procedures = 62, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13040 [2024-11-27 23:31:44,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:44,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:44,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:44,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:44,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,507 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 23:31:44,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,809 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:44,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:45,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:45,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:45,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:45,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:45,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (1/1) ... [2024-11-27 23:31:45,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:45,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:45,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:45,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a105a6d-32b7-443f-a5b9-f246ce1be11a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-27 23:31:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-27 23:31:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-27 23:31:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-27 23:31:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-27 23:31:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-27 23:31:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-27 23:31:45,108 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-27 23:31:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-27 23:31:45,108 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-27 23:31:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-27 23:31:45,108 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-27 23:31:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:31:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:45,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:45,287 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:45,289 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:56,074 INFO L? ?]: Removed 1737 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:56,075 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:56,146 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:56,147 INFO L312 CfgBuilder]: Removed 26 assume(true) statements. [2024-11-27 23:31:56,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:56 BoogieIcfgContainer [2024-11-27 23:31:56,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:56,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:56,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:56,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:56,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:39" (1/3) ... [2024-11-27 23:31:56,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369b9c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:56, skipping insertion in model container [2024-11-27 23:31:56,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:43" (2/3) ... [2024-11-27 23:31:56,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369b9c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:56, skipping insertion in model container [2024-11-27 23:31:56,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:56" (3/3) ... [2024-11-27 23:31:56,157 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.09.cil-1.c [2024-11-27 23:31:56,171 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:56,174 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label44+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 23:31:56,304 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:56,318 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;@63ecb18a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:56,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 23:31:56,329 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 23:31:56,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:31:56,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:56,346 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 23:31:56,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:56,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash -129861132, now seen corresponding path program 1 times [2024-11-27 23:31:56,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:56,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262224880] [2024-11-27 23:31:56,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:56,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:56,826 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 23:31:56,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:56,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262224880] [2024-11-27 23:31:56,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262224880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:56,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:56,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:56,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592888610] [2024-11-27 23:31:56,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:56,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:56,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:56,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:56,871 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 23:31:57,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:57,159 INFO L93 Difference]: Finished difference Result 4968 states and 9153 transitions. [2024-11-27 23:31:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:57,161 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 23:31:57,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:57,198 INFO L225 Difference]: With dead ends: 4968 [2024-11-27 23:31:57,198 INFO L226 Difference]: Without dead ends: 2421 [2024-11-27 23:31:57,212 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 23:31:57,215 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 23:31:57,218 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 23:31:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2024-11-27 23:31:57,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2024-11-27 23:31:57,367 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 23:31:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4427 transitions. [2024-11-27 23:31:57,390 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4427 transitions. Word has length 143 [2024-11-27 23:31:57,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:57,393 INFO L471 AbstractCegarLoop]: Abstraction has 2421 states and 4427 transitions. [2024-11-27 23:31:57,394 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 23:31:57,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4427 transitions. [2024-11-27 23:31:57,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:31:57,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:57,401 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 23:31:57,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:31:57,401 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:57,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash -418680522, now seen corresponding path program 1 times [2024-11-27 23:31:57,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:57,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133076230] [2024-11-27 23:31:57,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:57,812 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 23:31:57,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:57,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133076230] [2024-11-27 23:31:57,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133076230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:57,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:57,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:31:57,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589207499] [2024-11-27 23:31:57,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:57,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:31:57,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:57,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:31:57,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:57,819 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 23:31:58,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:58,654 INFO L93 Difference]: Finished difference Result 3023 states and 5383 transitions. [2024-11-27 23:31:58,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:31:58,655 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 23:31:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:58,673 INFO L225 Difference]: With dead ends: 3023 [2024-11-27 23:31:58,673 INFO L226 Difference]: Without dead ends: 2740 [2024-11-27 23:31:58,677 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 23:31:58,677 INFO L435 NwaCegarLoop]: 4321 mSDtfsCounter, 4851 mSDsluCounter, 8836 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:58,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4868 Valid, 13157 Invalid, 559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:31:58,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2024-11-27 23:31:58,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2717. [2024-11-27 23:31:58,761 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 23:31:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 4895 transitions. [2024-11-27 23:31:58,778 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 4895 transitions. Word has length 143 [2024-11-27 23:31:58,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:58,780 INFO L471 AbstractCegarLoop]: Abstraction has 2717 states and 4895 transitions. [2024-11-27 23:31:58,780 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 23:31:58,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 4895 transitions. [2024-11-27 23:31:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:31:58,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:58,785 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 23:31:58,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:31:58,785 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:58,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:58,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1102684602, now seen corresponding path program 1 times [2024-11-27 23:31:58,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:58,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980458207] [2024-11-27 23:31:58,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:58,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:59,129 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 23:31:59,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:59,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980458207] [2024-11-27 23:31:59,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980458207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:59,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:59,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:31:59,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913498939] [2024-11-27 23:31:59,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:59,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:31:59,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:59,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:31:59,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:31:59,133 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 23:32:00,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:00,276 INFO L93 Difference]: Finished difference Result 3674 states and 6428 transitions. [2024-11-27 23:32:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:00,277 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 23:32:00,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:00,294 INFO L225 Difference]: With dead ends: 3674 [2024-11-27 23:32:00,294 INFO L226 Difference]: Without dead ends: 3095 [2024-11-27 23:32:00,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:00,300 INFO L435 NwaCegarLoop]: 4567 mSDtfsCounter, 4855 mSDsluCounter, 13728 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:00,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4872 Valid, 18295 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:32:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2024-11-27 23:32:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2992. [2024-11-27 23:32:00,392 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 23:32:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 5323 transitions. [2024-11-27 23:32:00,409 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 5323 transitions. Word has length 143 [2024-11-27 23:32:00,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:00,410 INFO L471 AbstractCegarLoop]: Abstraction has 2992 states and 5323 transitions. [2024-11-27 23:32:00,411 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 23:32:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 5323 transitions. [2024-11-27 23:32:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:00,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:00,414 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 23:32:00,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:32:00,414 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:00,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash -947724296, now seen corresponding path program 1 times [2024-11-27 23:32:00,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:00,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131487419] [2024-11-27 23:32:00,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:00,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:00,712 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 23:32:00,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:00,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131487419] [2024-11-27 23:32:00,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131487419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:00,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:00,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:00,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830204154] [2024-11-27 23:32:00,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:00,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:00,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:00,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:00,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:00,716 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 23:32:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:01,731 INFO L93 Difference]: Finished difference Result 4543 states and 7799 transitions. [2024-11-27 23:32:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:01,732 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 23:32:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:01,753 INFO L225 Difference]: With dead ends: 4543 [2024-11-27 23:32:01,753 INFO L226 Difference]: Without dead ends: 3689 [2024-11-27 23:32:01,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:01,758 INFO L435 NwaCegarLoop]: 4559 mSDtfsCounter, 4847 mSDsluCounter, 13706 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:01,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 18265 Invalid, 913 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:32:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2024-11-27 23:32:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3576. [2024-11-27 23:32:01,880 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 23:32:01,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 6246 transitions. [2024-11-27 23:32:01,904 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 6246 transitions. Word has length 143 [2024-11-27 23:32:01,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:01,904 INFO L471 AbstractCegarLoop]: Abstraction has 3576 states and 6246 transitions. [2024-11-27 23:32:01,904 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 23:32:01,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 6246 transitions. [2024-11-27 23:32:01,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:01,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:01,908 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 23:32:01,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:32:01,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:01,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:01,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2040359498, now seen corresponding path program 1 times [2024-11-27 23:32:01,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:01,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551943612] [2024-11-27 23:32:01,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:01,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:02,140 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 23:32:02,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:02,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551943612] [2024-11-27 23:32:02,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551943612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:02,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:02,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:02,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685599823] [2024-11-27 23:32:02,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:02,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:02,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:02,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:02,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:02,142 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 23:32:03,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:03,263 INFO L93 Difference]: Finished difference Result 6423 states and 10828 transitions. [2024-11-27 23:32:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:03,264 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 23:32:03,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:03,287 INFO L225 Difference]: With dead ends: 6423 [2024-11-27 23:32:03,287 INFO L226 Difference]: Without dead ends: 4985 [2024-11-27 23:32:03,293 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 23:32:03,294 INFO L435 NwaCegarLoop]: 4556 mSDtfsCounter, 4842 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4859 SdHoareTripleChecker+Valid, 18253 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:03,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4859 Valid, 18253 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:32:03,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2024-11-27 23:32:03,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 4843. [2024-11-27 23:32:03,596 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 23:32:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 8294 transitions. [2024-11-27 23:32:03,625 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 8294 transitions. Word has length 143 [2024-11-27 23:32:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:03,626 INFO L471 AbstractCegarLoop]: Abstraction has 4843 states and 8294 transitions. [2024-11-27 23:32:03,626 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 23:32:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 8294 transitions. [2024-11-27 23:32:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:03,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:03,634 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 23:32:03,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:32:03,634 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:03,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:03,635 INFO L85 PathProgramCache]: Analyzing trace with hash 972435512, now seen corresponding path program 1 times [2024-11-27 23:32:03,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:03,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295497172] [2024-11-27 23:32:03,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:03,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:03,847 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 23:32:03,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:03,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295497172] [2024-11-27 23:32:03,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295497172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:03,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:03,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:03,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187645522] [2024-11-27 23:32:03,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:03,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:03,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:03,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:03,849 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 23:32:04,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:04,961 INFO L93 Difference]: Finished difference Result 10560 states and 17682 transitions. [2024-11-27 23:32:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:04,961 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 23:32:04,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:05,004 INFO L225 Difference]: With dead ends: 10560 [2024-11-27 23:32:05,004 INFO L226 Difference]: Without dead ends: 7855 [2024-11-27 23:32:05,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:05,015 INFO L435 NwaCegarLoop]: 4553 mSDtfsCounter, 4837 mSDsluCounter, 13688 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4854 SdHoareTripleChecker+Valid, 18241 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:05,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4854 Valid, 18241 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:32:05,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7855 states. [2024-11-27 23:32:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7855 to 7656. [2024-11-27 23:32:05,332 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 23:32:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7656 states to 7656 states and 12986 transitions. [2024-11-27 23:32:05,366 INFO L78 Accepts]: Start accepts. Automaton has 7656 states and 12986 transitions. Word has length 143 [2024-11-27 23:32:05,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:05,366 INFO L471 AbstractCegarLoop]: Abstraction has 7656 states and 12986 transitions. [2024-11-27 23:32:05,366 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 23:32:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 7656 states and 12986 transitions. [2024-11-27 23:32:05,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:05,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:05,372 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 23:32:05,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:32:05,372 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:05,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:05,373 INFO L85 PathProgramCache]: Analyzing trace with hash -870040202, now seen corresponding path program 1 times [2024-11-27 23:32:05,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:05,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253852254] [2024-11-27 23:32:05,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:05,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:05,583 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 23:32:05,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:05,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253852254] [2024-11-27 23:32:05,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253852254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:05,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:05,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:05,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044975236] [2024-11-27 23:32:05,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:05,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:05,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:05,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:05,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:05,586 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 23:32:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:07,083 INFO L93 Difference]: Finished difference Result 19891 states and 33756 transitions. [2024-11-27 23:32:07,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:07,084 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 23:32:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:07,153 INFO L225 Difference]: With dead ends: 19891 [2024-11-27 23:32:07,153 INFO L226 Difference]: Without dead ends: 14373 [2024-11-27 23:32:07,175 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 23:32:07,175 INFO L435 NwaCegarLoop]: 4343 mSDtfsCounter, 4864 mSDsluCounter, 13191 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 17534 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:07,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 17534 Invalid, 772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:32:07,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14373 states. [2024-11-27 23:32:07,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14373 to 14065. [2024-11-27 23:32:07,731 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 23:32:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14065 states to 14065 states and 24150 transitions. [2024-11-27 23:32:07,784 INFO L78 Accepts]: Start accepts. Automaton has 14065 states and 24150 transitions. Word has length 143 [2024-11-27 23:32:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:07,784 INFO L471 AbstractCegarLoop]: Abstraction has 14065 states and 24150 transitions. [2024-11-27 23:32:07,785 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 23:32:07,785 INFO L276 IsEmpty]: Start isEmpty. Operand 14065 states and 24150 transitions. [2024-11-27 23:32:07,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:07,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:07,795 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 23:32:07,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:32:07,795 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:07,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:07,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1702924408, now seen corresponding path program 1 times [2024-11-27 23:32:07,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:07,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442013293] [2024-11-27 23:32:07,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:07,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:07,962 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 23:32:07,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:07,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442013293] [2024-11-27 23:32:07,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442013293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:07,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:32:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104840143] [2024-11-27 23:32:07,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:07,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:07,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:07,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:07,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:07,965 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 23:32:08,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:08,918 INFO L93 Difference]: Finished difference Result 29422 states and 51531 transitions. [2024-11-27 23:32:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:32:08,918 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 23:32:08,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:08,992 INFO L225 Difference]: With dead ends: 29422 [2024-11-27 23:32:08,993 INFO L226 Difference]: Without dead ends: 17495 [2024-11-27 23:32:09,033 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 23:32:09,034 INFO L435 NwaCegarLoop]: 4298 mSDtfsCounter, 4585 mSDsluCounter, 8471 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:09,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4602 Valid, 12769 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:32:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17495 states. [2024-11-27 23:32:09,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17495 to 14065. [2024-11-27 23:32:09,824 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 23:32:09,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14065 states to 14065 states and 24117 transitions. [2024-11-27 23:32:09,873 INFO L78 Accepts]: Start accepts. Automaton has 14065 states and 24117 transitions. Word has length 143 [2024-11-27 23:32:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:09,873 INFO L471 AbstractCegarLoop]: Abstraction has 14065 states and 24117 transitions. [2024-11-27 23:32:09,874 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 23:32:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 14065 states and 24117 transitions. [2024-11-27 23:32:09,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:09,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:09,881 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 23:32:09,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:32:09,882 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:09,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:09,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1370281270, now seen corresponding path program 1 times [2024-11-27 23:32:09,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:09,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712582208] [2024-11-27 23:32:09,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:09,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:10,099 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 23:32:10,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:10,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712582208] [2024-11-27 23:32:10,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712582208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:10,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:10,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:10,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234326543] [2024-11-27 23:32:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:10,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:10,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:10,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:10,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:10,101 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 23:32:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:11,802 INFO L93 Difference]: Finished difference Result 41232 states and 72411 transitions. [2024-11-27 23:32:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:11,802 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 23:32:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:11,926 INFO L225 Difference]: With dead ends: 41232 [2024-11-27 23:32:11,927 INFO L226 Difference]: Without dead ends: 29305 [2024-11-27 23:32:11,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:11,959 INFO L435 NwaCegarLoop]: 4542 mSDtfsCounter, 4819 mSDsluCounter, 13656 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 18198 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:11,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 18198 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:32:11,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29305 states. [2024-11-27 23:32:13,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29305 to 28827. [2024-11-27 23:32:13,481 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 23:32:13,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28827 states to 28827 states and 51335 transitions. [2024-11-27 23:32:13,649 INFO L78 Accepts]: Start accepts. Automaton has 28827 states and 51335 transitions. Word has length 143 [2024-11-27 23:32:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:13,649 INFO L471 AbstractCegarLoop]: Abstraction has 28827 states and 51335 transitions. [2024-11-27 23:32:13,650 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 23:32:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 28827 states and 51335 transitions. [2024-11-27 23:32:13,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:13,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:13,666 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 23:32:13,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:32:13,667 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:13,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:13,672 INFO L85 PathProgramCache]: Analyzing trace with hash -995753800, now seen corresponding path program 1 times [2024-11-27 23:32:13,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:13,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083153072] [2024-11-27 23:32:13,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:13,912 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 23:32:13,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:13,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083153072] [2024-11-27 23:32:13,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083153072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:13,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:13,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:13,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374734708] [2024-11-27 23:32:13,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:13,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:13,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:13,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:13,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:13,915 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 23:32:16,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:16,865 INFO L93 Difference]: Finished difference Result 91456 states and 170595 transitions. [2024-11-27 23:32:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:16,865 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 23:32:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:17,135 INFO L225 Difference]: With dead ends: 91456 [2024-11-27 23:32:17,136 INFO L226 Difference]: Without dead ends: 64767 [2024-11-27 23:32:17,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:17,218 INFO L435 NwaCegarLoop]: 4539 mSDtfsCounter, 4814 mSDsluCounter, 13647 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4831 SdHoareTripleChecker+Valid, 18186 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:17,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4831 Valid, 18186 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:32:17,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64767 states. [2024-11-27 23:32:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64767 to 63940. [2024-11-27 23:32:20,898 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 23:32:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63940 states to 63940 states and 121603 transitions. [2024-11-27 23:32:21,198 INFO L78 Accepts]: Start accepts. Automaton has 63940 states and 121603 transitions. Word has length 143 [2024-11-27 23:32:21,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:21,198 INFO L471 AbstractCegarLoop]: Abstraction has 63940 states and 121603 transitions. [2024-11-27 23:32:21,198 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 23:32:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 63940 states and 121603 transitions. [2024-11-27 23:32:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:32:21,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:21,222 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 23:32:21,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:32:21,222 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:21,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:21,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1006132470, now seen corresponding path program 1 times [2024-11-27 23:32:21,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:21,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024148461] [2024-11-27 23:32:21,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:21,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:21,390 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 23:32:21,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:21,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024148461] [2024-11-27 23:32:21,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024148461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:21,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:21,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:21,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732872956] [2024-11-27 23:32:21,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:21,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:21,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:21,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:21,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:21,393 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 23:32:27,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:27,720 INFO L93 Difference]: Finished difference Result 218103 states and 440698 transitions. [2024-11-27 23:32:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:32:27,721 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 23:32:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:28,978 INFO L225 Difference]: With dead ends: 218103 [2024-11-27 23:32:28,978 INFO L226 Difference]: Without dead ends: 156301 [2024-11-27 23:32:29,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:29,182 INFO L435 NwaCegarLoop]: 4529 mSDtfsCounter, 4888 mSDsluCounter, 13614 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 18143 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:29,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 18143 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:32:29,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156301 states.