./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.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_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/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_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/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_7e289d58-0d79-44f1-98ac-1a7f5679c84f/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 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:08:41,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:08:41,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:08:41,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:08:41,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:08:41,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:08:41,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:08:41,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:08:41,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:08:41,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:08:41,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:08:41,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:08:41,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:08:41,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:08:41,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:08:41,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:08:41,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:08:41,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:08:41,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:08:41,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:08:41,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:08:41,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:08:41,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:08:41,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:08:41,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:08:41,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:08:41,244 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:08:41,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:08:41,244 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:08:41,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:08:41,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:08:41,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:08:41,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:41,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:08:41,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:08:41,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:08:41,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:08:41,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:41,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:08:41,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:08:41,247 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:08:41,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:08:41,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:08:41,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:08:41,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:08:41,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:08:41,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:08:41,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:08:41,249 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_7e289d58-0d79-44f1-98ac-1a7f5679c84f/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 -> 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 [2024-11-28 04:08:41,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:08:41,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:08:41,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:08:41,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:08:41,649 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:08:41,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2024-11-28 04:08:45,018 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/data/8628eac82/8884be16ddf34bd5bf7a29078b3adf00/FLAG4601c741a [2024-11-28 04:08:45,906 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:08:45,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2024-11-28 04:08:45,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/data/8628eac82/8884be16ddf34bd5bf7a29078b3adf00/FLAG4601c741a [2024-11-28 04:08:45,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/data/8628eac82/8884be16ddf34bd5bf7a29078b3adf00 [2024-11-28 04:08:46,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:08:46,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:08:46,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:08:46,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:08:46,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:08:46,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:08:45" (1/1) ... [2024-11-28 04:08:46,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fde96d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:46, skipping insertion in model container [2024-11-28 04:08:46,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:08:45" (1/1) ... [2024-11-28 04:08:46,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:08:48,723 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[381679,381692] [2024-11-28 04:08:48,774 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_7e289d58-0d79-44f1-98ac-1a7f5679c84f/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[383339,383352] [2024-11-28 04:08:49,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:08:49,237 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:08:50,516 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_7e289d58-0d79-44f1-98ac-1a7f5679c84f/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[381679,381692] [2024-11-28 04:08:50,520 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_7e289d58-0d79-44f1-98ac-1a7f5679c84f/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[383339,383352] [2024-11-28 04:08:50,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:08:50,627 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:08:50,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50 WrapperNode [2024-11-28 04:08:50,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:08:50,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:08:50,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:08:50,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:08:50,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:50,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:51,394 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13282 [2024-11-28 04:08:51,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:08:51,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:08:51,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:08:51,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:08:51,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:51,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:51,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:51,660 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]. [2024-11-28 04:08:51,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:51,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:51,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:51,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:52,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:52,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:52,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:52,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:08:52,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:08:52,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:08:52,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:08:52,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (1/1) ... [2024-11-28 04:08:52,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:52,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:52,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:08:52,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e289d58-0d79-44f1-98ac-1a7f5679c84f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:08:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:08:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 04:08:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 04:08:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 04:08:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 04:08:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 04:08:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 04:08:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-28 04:08:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-28 04:08:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 04:08:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 04:08:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 04:08:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 04:08:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 04:08:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 04:08:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:08:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:08:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:08:52,534 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:08:52,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:09:06,127 INFO L? ?]: Removed 1765 outVars from TransFormulas that were not future-live. [2024-11-28 04:09:06,127 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:09:06,214 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:09:06,214 INFO L312 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-28 04:09:06,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:09:06 BoogieIcfgContainer [2024-11-28 04:09:06,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:09:06,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:09:06,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:09:06,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:09:06,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:08:45" (1/3) ... [2024-11-28 04:09:06,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a424b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:09:06, skipping insertion in model container [2024-11-28 04:09:06,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:50" (2/3) ... [2024-11-28 04:09:06,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a424b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:09:06, skipping insertion in model container [2024-11-28 04:09:06,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:09:06" (3/3) ... [2024-11-28 04:09:06,226 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.13.cil-1.c [2024-11-28 04:09:06,249 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:09:06,253 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label43+token_ring.13.cil-1.c that has 8 procedures, 2596 locations, 1 initial locations, 17 loop locations, and 2 error locations. [2024-11-28 04:09:06,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:09:06,454 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;@7931cfdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:09:06,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 04:09:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 2596 states, 2558 states have (on average 1.8420641125879593) internal successors, (4712), 2562 states have internal predecessors, (4712), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 04:09:06,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:06,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:06,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:06,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:06,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:06,514 INFO L85 PathProgramCache]: Analyzing trace with hash -295132799, now seen corresponding path program 1 times [2024-11-28 04:09:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:06,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575423426] [2024-11-28 04:09:06,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:06,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:07,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:07,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575423426] [2024-11-28 04:09:07,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575423426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:07,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:07,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:07,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138492704] [2024-11-28 04:09:07,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:07,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:07,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:07,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:07,282 INFO L87 Difference]: Start difference. First operand has 2596 states, 2558 states have (on average 1.8420641125879593) internal successors, (4712), 2562 states have internal predecessors, (4712), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:07,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:07,627 INFO L93 Difference]: Finished difference Result 5183 states and 9525 transitions. [2024-11-28 04:09:07,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:07,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:07,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:07,675 INFO L225 Difference]: With dead ends: 5183 [2024-11-28 04:09:07,675 INFO L226 Difference]: Without dead ends: 2528 [2024-11-28 04:09:07,693 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 [2024-11-28 04:09:07,696 INFO L435 NwaCegarLoop]: 4671 mSDtfsCounter, 642 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 8693 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 [2024-11-28 04:09:07,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 8693 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:09:07,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2024-11-28 04:09:07,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2528. [2024-11-28 04:09:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2491 states have (on average 1.825371336812525) internal successors, (4547), 2494 states have internal predecessors, (4547), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:09:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 4603 transitions. [2024-11-28 04:09:07,905 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 4603 transitions. Word has length 188 [2024-11-28 04:09:07,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:07,908 INFO L471 AbstractCegarLoop]: Abstraction has 2528 states and 4603 transitions. [2024-11-28 04:09:07,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 4603 transitions. [2024-11-28 04:09:07,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:07,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:07,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:07,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:09:07,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:07,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:07,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1894281857, now seen corresponding path program 1 times [2024-11-28 04:09:07,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:07,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712335374] [2024-11-28 04:09:07,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:07,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:08,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:08,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712335374] [2024-11-28 04:09:08,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712335374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:08,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:08,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:09:08,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18203495] [2024-11-28 04:09:08,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:08,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:09:08,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:08,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:09:08,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:09:08,323 INFO L87 Difference]: Start difference. First operand 2528 states and 4603 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:08,462 INFO L93 Difference]: Finished difference Result 2918 states and 5219 transitions. [2024-11-28 04:09:08,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:09:08,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:08,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:08,480 INFO L225 Difference]: With dead ends: 2918 [2024-11-28 04:09:08,480 INFO L226 Difference]: Without dead ends: 2528 [2024-11-28 04:09:08,483 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 [2024-11-28 04:09:08,485 INFO L435 NwaCegarLoop]: 4601 mSDtfsCounter, 628 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 8559 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:08,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 8559 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:09:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2024-11-28 04:09:08,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2528. [2024-11-28 04:09:08,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2491 states have (on average 1.8249698916097952) internal successors, (4546), 2494 states have internal predecessors, (4546), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:09:08,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 4602 transitions. [2024-11-28 04:09:08,594 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 4602 transitions. Word has length 188 [2024-11-28 04:09:08,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:08,595 INFO L471 AbstractCegarLoop]: Abstraction has 2528 states and 4602 transitions. [2024-11-28 04:09:08,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 4602 transitions. [2024-11-28 04:09:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:08,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:08,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:08,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:09:08,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:08,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:08,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1984342147, now seen corresponding path program 1 times [2024-11-28 04:09:08,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:08,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343823897] [2024-11-28 04:09:08,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:08,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:09,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:09,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:09,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343823897] [2024-11-28 04:09:09,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343823897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:09,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:09,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:09:09,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789864240] [2024-11-28 04:09:09,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:09,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:09:09,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:09,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:09:09,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:09:09,091 INFO L87 Difference]: Start difference. First operand 2528 states and 4602 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:10,379 INFO L93 Difference]: Finished difference Result 3352 states and 5926 transitions. [2024-11-28 04:09:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:09:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:10,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:10,400 INFO L225 Difference]: With dead ends: 3352 [2024-11-28 04:09:10,400 INFO L226 Difference]: Without dead ends: 2966 [2024-11-28 04:09:10,403 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 [2024-11-28 04:09:10,409 INFO L435 NwaCegarLoop]: 4459 mSDtfsCounter, 5204 mSDsluCounter, 9199 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 13658 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:10,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5225 Valid, 13658 Invalid, 740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:09:10,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2024-11-28 04:09:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2933. [2024-11-28 04:09:10,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 2867 states have (on average 1.7966515521450994) internal successors, (5151), 2871 states have internal predecessors, (5151), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-28 04:09:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 5252 transitions. [2024-11-28 04:09:10,537 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 5252 transitions. Word has length 188 [2024-11-28 04:09:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:10,538 INFO L471 AbstractCegarLoop]: Abstraction has 2933 states and 5252 transitions. [2024-11-28 04:09:10,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 5252 transitions. [2024-11-28 04:09:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:10,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:10,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:10,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:09:10,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:10,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1780677767, now seen corresponding path program 1 times [2024-11-28 04:09:10,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:10,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029122833] [2024-11-28 04:09:10,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:10,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:10,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029122833] [2024-11-28 04:09:10,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029122833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:10,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:10,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:10,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951010896] [2024-11-28 04:09:10,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:10,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:11,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:11,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:11,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:11,001 INFO L87 Difference]: Start difference. First operand 2933 states and 5252 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:12,514 INFO L93 Difference]: Finished difference Result 4245 states and 7383 transitions. [2024-11-28 04:09:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:12,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:12,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:12,533 INFO L225 Difference]: With dead ends: 4245 [2024-11-28 04:09:12,534 INFO L226 Difference]: Without dead ends: 3454 [2024-11-28 04:09:12,538 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 [2024-11-28 04:09:12,539 INFO L435 NwaCegarLoop]: 4808 mSDtfsCounter, 5215 mSDsluCounter, 14486 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 19294 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:12,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 19294 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:12,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2024-11-28 04:09:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3309. [2024-11-28 04:09:12,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3309 states, 3214 states have (on average 1.7728686994399503) internal successors, (5698), 3219 states have internal predecessors, (5698), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2024-11-28 04:09:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 5846 transitions. [2024-11-28 04:09:12,671 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 5846 transitions. Word has length 188 [2024-11-28 04:09:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:12,671 INFO L471 AbstractCegarLoop]: Abstraction has 3309 states and 5846 transitions. [2024-11-28 04:09:12,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 5846 transitions. [2024-11-28 04:09:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:12,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:12,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:12,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:09:12,676 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:12,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:12,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1282120965, now seen corresponding path program 1 times [2024-11-28 04:09:12,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:12,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575834092] [2024-11-28 04:09:12,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:13,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575834092] [2024-11-28 04:09:13,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575834092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:13,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:13,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:13,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945623156] [2024-11-28 04:09:13,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:13,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:13,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:13,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:13,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:13,036 INFO L87 Difference]: Start difference. First operand 3309 states and 5846 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:14,507 INFO L93 Difference]: Finished difference Result 5441 states and 9300 transitions. [2024-11-28 04:09:14,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:14,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:14,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:14,530 INFO L225 Difference]: With dead ends: 5441 [2024-11-28 04:09:14,531 INFO L226 Difference]: Without dead ends: 4274 [2024-11-28 04:09:14,536 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 [2024-11-28 04:09:14,537 INFO L435 NwaCegarLoop]: 4800 mSDtfsCounter, 5207 mSDsluCounter, 14464 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 19264 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:14,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5228 Valid, 19264 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4274 states. [2024-11-28 04:09:14,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4274 to 4111. [2024-11-28 04:09:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4111 states, 3956 states have (on average 1.7403943377148634) internal successors, (6885), 3965 states have internal predecessors, (6885), 117 states have call successors, (117), 31 states have call predecessors, (117), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2024-11-28 04:09:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4111 states to 4111 states and 7133 transitions. [2024-11-28 04:09:14,712 INFO L78 Accepts]: Start accepts. Automaton has 4111 states and 7133 transitions. Word has length 188 [2024-11-28 04:09:14,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:14,713 INFO L471 AbstractCegarLoop]: Abstraction has 4111 states and 7133 transitions. [2024-11-28 04:09:14,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 4111 states and 7133 transitions. [2024-11-28 04:09:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:14,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:14,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:14,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:09:14,718 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:14,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:14,719 INFO L85 PathProgramCache]: Analyzing trace with hash 121748221, now seen corresponding path program 1 times [2024-11-28 04:09:14,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:14,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056186644] [2024-11-28 04:09:14,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:14,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:15,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:15,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056186644] [2024-11-28 04:09:15,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056186644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:15,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:15,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:15,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447237329] [2024-11-28 04:09:15,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:15,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:15,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:15,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:15,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:15,024 INFO L87 Difference]: Start difference. First operand 4111 states and 7133 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:16,559 INFO L93 Difference]: Finished difference Result 8039 states and 13549 transitions. [2024-11-28 04:09:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:16,592 INFO L225 Difference]: With dead ends: 8039 [2024-11-28 04:09:16,593 INFO L226 Difference]: Without dead ends: 6070 [2024-11-28 04:09:16,601 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 [2024-11-28 04:09:16,602 INFO L435 NwaCegarLoop]: 4797 mSDtfsCounter, 5202 mSDsluCounter, 14455 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 19252 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:16,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 19252 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6070 states. [2024-11-28 04:09:16,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6070 to 5862. [2024-11-28 04:09:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5581 states have (on average 1.7081168249417666) internal successors, (9533), 5604 states have internal predecessors, (9533), 205 states have call successors, (205), 55 states have call predecessors, (205), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2024-11-28 04:09:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 10005 transitions. [2024-11-28 04:09:16,996 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 10005 transitions. Word has length 188 [2024-11-28 04:09:16,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:16,999 INFO L471 AbstractCegarLoop]: Abstraction has 5862 states and 10005 transitions. [2024-11-28 04:09:17,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 10005 transitions. [2024-11-28 04:09:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:17,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:17,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:17,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:09:17,014 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:17,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:17,015 INFO L85 PathProgramCache]: Analyzing trace with hash -664249669, now seen corresponding path program 1 times [2024-11-28 04:09:17,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:17,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006130807] [2024-11-28 04:09:17,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:17,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:17,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:17,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006130807] [2024-11-28 04:09:17,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006130807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:17,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:17,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:17,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997188598] [2024-11-28 04:09:17,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:17,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:17,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:17,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:17,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:17,344 INFO L87 Difference]: Start difference. First operand 5862 states and 10005 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:18,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:18,954 INFO L93 Difference]: Finished difference Result 13804 states and 23227 transitions. [2024-11-28 04:09:18,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:18,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:18,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:19,036 INFO L225 Difference]: With dead ends: 13804 [2024-11-28 04:09:19,036 INFO L226 Difference]: Without dead ends: 10084 [2024-11-28 04:09:19,053 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 [2024-11-28 04:09:19,054 INFO L435 NwaCegarLoop]: 4794 mSDtfsCounter, 5197 mSDsluCounter, 14446 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5218 SdHoareTripleChecker+Valid, 19240 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:19,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5218 Valid, 19240 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10084 states. [2024-11-28 04:09:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10084 to 9787. [2024-11-28 04:09:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9787 states, 9236 states have (on average 1.690883499350368) internal successors, (15617), 9305 states have internal predecessors, (15617), 381 states have call successors, (381), 103 states have call predecessors, (381), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2024-11-28 04:09:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9787 states to 9787 states and 16633 transitions. [2024-11-28 04:09:19,545 INFO L78 Accepts]: Start accepts. Automaton has 9787 states and 16633 transitions. Word has length 188 [2024-11-28 04:09:19,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:19,545 INFO L471 AbstractCegarLoop]: Abstraction has 9787 states and 16633 transitions. [2024-11-28 04:09:19,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 9787 states and 16633 transitions. [2024-11-28 04:09:19,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:19,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:19,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:19,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:09:19,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:19,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:19,556 INFO L85 PathProgramCache]: Analyzing trace with hash 3132221, now seen corresponding path program 1 times [2024-11-28 04:09:19,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:19,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564886189] [2024-11-28 04:09:19,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:19,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:19,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:19,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564886189] [2024-11-28 04:09:19,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564886189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:19,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:19,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:19,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754151619] [2024-11-28 04:09:19,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:19,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:19,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:19,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:19,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:19,851 INFO L87 Difference]: Start difference. First operand 9787 states and 16633 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:21,825 INFO L93 Difference]: Finished difference Result 26967 states and 46101 transitions. [2024-11-28 04:09:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:21,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:21,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:21,928 INFO L225 Difference]: With dead ends: 26967 [2024-11-28 04:09:21,928 INFO L226 Difference]: Without dead ends: 19322 [2024-11-28 04:09:21,964 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 [2024-11-28 04:09:21,965 INFO L435 NwaCegarLoop]: 4497 mSDtfsCounter, 5233 mSDsluCounter, 13734 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5254 SdHoareTripleChecker+Valid, 18231 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:21,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5254 Valid, 18231 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19322 states. [2024-11-28 04:09:22,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19322 to 18852. [2024-11-28 04:09:22,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18852 states, 17707 states have (on average 1.696786581577907) internal successors, (30045), 17922 states have internal predecessors, (30045), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2024-11-28 04:09:22,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18852 states to 18852 states and 32533 transitions. [2024-11-28 04:09:22,804 INFO L78 Accepts]: Start accepts. Automaton has 18852 states and 32533 transitions. Word has length 188 [2024-11-28 04:09:22,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:22,805 INFO L471 AbstractCegarLoop]: Abstraction has 18852 states and 32533 transitions. [2024-11-28 04:09:22,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand 18852 states and 32533 transitions. [2024-11-28 04:09:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:22,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:22,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:22,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:09:22,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:22,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:22,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2102870651, now seen corresponding path program 1 times [2024-11-28 04:09:22,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:22,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236982249] [2024-11-28 04:09:22,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:22,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:23,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:23,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236982249] [2024-11-28 04:09:23,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236982249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:23,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:23,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:09:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573399517] [2024-11-28 04:09:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:23,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:09:23,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:23,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:09:23,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:09:23,234 INFO L87 Difference]: Start difference. First operand 18852 states and 32533 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:24,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:24,450 INFO L93 Difference]: Finished difference Result 40952 states and 72210 transitions. [2024-11-28 04:09:24,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:24,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:24,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:24,567 INFO L225 Difference]: With dead ends: 40952 [2024-11-28 04:09:24,567 INFO L226 Difference]: Without dead ends: 24242 [2024-11-28 04:09:24,625 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 [2024-11-28 04:09:24,625 INFO L435 NwaCegarLoop]: 4436 mSDtfsCounter, 4833 mSDsluCounter, 8703 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4854 SdHoareTripleChecker+Valid, 13139 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:24,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4854 Valid, 13139 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:09:24,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24242 states. [2024-11-28 04:09:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24242 to 18852. [2024-11-28 04:09:25,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18852 states, 17707 states have (on average 1.694922911842774) internal successors, (30012), 17922 states have internal predecessors, (30012), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2024-11-28 04:09:25,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18852 states to 18852 states and 32500 transitions. [2024-11-28 04:09:25,768 INFO L78 Accepts]: Start accepts. Automaton has 18852 states and 32500 transitions. Word has length 188 [2024-11-28 04:09:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:25,769 INFO L471 AbstractCegarLoop]: Abstraction has 18852 states and 32500 transitions. [2024-11-28 04:09:25,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand 18852 states and 32500 transitions. [2024-11-28 04:09:25,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:25,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:25,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:25,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:09:25,781 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:25,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:25,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1847268483, now seen corresponding path program 1 times [2024-11-28 04:09:25,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:25,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736415225] [2024-11-28 04:09:25,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:25,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:26,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:26,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736415225] [2024-11-28 04:09:26,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736415225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:26,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:26,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:26,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326767584] [2024-11-28 04:09:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:26,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:26,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:26,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:26,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:26,051 INFO L87 Difference]: Start difference. First operand 18852 states and 32500 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:28,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:28,307 INFO L93 Difference]: Finished difference Result 57700 states and 101812 transitions. [2024-11-28 04:09:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:28,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:28,497 INFO L225 Difference]: With dead ends: 57700 [2024-11-28 04:09:28,497 INFO L226 Difference]: Without dead ends: 40990 [2024-11-28 04:09:28,560 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 [2024-11-28 04:09:28,562 INFO L435 NwaCegarLoop]: 4783 mSDtfsCounter, 5179 mSDsluCounter, 14414 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5200 SdHoareTripleChecker+Valid, 19197 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:28,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5200 Valid, 19197 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:09:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40990 states. [2024-11-28 04:09:30,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40990 to 40222. [2024-11-28 04:09:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40222 states, 37727 states have (on average 1.7179738648713123) internal successors, (64814), 38396 states have internal predecessors, (64814), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2024-11-28 04:09:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40222 states to 40222 states and 71782 transitions. [2024-11-28 04:09:31,191 INFO L78 Accepts]: Start accepts. Automaton has 40222 states and 71782 transitions. Word has length 188 [2024-11-28 04:09:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:31,192 INFO L471 AbstractCegarLoop]: Abstraction has 40222 states and 71782 transitions. [2024-11-28 04:09:31,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 40222 states and 71782 transitions. [2024-11-28 04:09:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:31,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:31,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:31,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:09:31,221 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:31,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:31,223 INFO L85 PathProgramCache]: Analyzing trace with hash -866313669, now seen corresponding path program 1 times [2024-11-28 04:09:31,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:31,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298668038] [2024-11-28 04:09:31,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:31,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:31,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:31,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298668038] [2024-11-28 04:09:31,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298668038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:31,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:31,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:31,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726356281] [2024-11-28 04:09:31,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:31,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:31,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:31,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:31,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:31,566 INFO L87 Difference]: Start difference. First operand 40222 states and 71782 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:35,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:35,510 INFO L93 Difference]: Finished difference Result 131892 states and 244476 transitions. [2024-11-28 04:09:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:35,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:35,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:36,089 INFO L225 Difference]: With dead ends: 131892 [2024-11-28 04:09:36,089 INFO L226 Difference]: Without dead ends: 93812 [2024-11-28 04:09:36,232 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 [2024-11-28 04:09:36,233 INFO L435 NwaCegarLoop]: 4780 mSDtfsCounter, 5174 mSDsluCounter, 14405 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5195 SdHoareTripleChecker+Valid, 19185 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:36,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5195 Valid, 19185 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:09:36,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93812 states. [2024-11-28 04:09:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93812 to 92439. [2024-11-28 04:09:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92439 states, 86758 states have (on average 1.750639710458978) internal successors, (151882), 88821 states have internal predecessors, (151882), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2024-11-28 04:09:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92439 states to 92439 states and 173954 transitions. [2024-11-28 04:09:41,838 INFO L78 Accepts]: Start accepts. Automaton has 92439 states and 173954 transitions. Word has length 188 [2024-11-28 04:09:41,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:41,842 INFO L471 AbstractCegarLoop]: Abstraction has 92439 states and 173954 transitions. [2024-11-28 04:09:41,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 92439 states and 173954 transitions. [2024-11-28 04:09:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:41,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:41,903 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:41,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:09:41,904 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:41,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:41,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1659182013, now seen corresponding path program 1 times [2024-11-28 04:09:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364017357] [2024-11-28 04:09:41,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:41,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:42,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:42,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364017357] [2024-11-28 04:09:42,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364017357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:42,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:42,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:09:42,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352283800] [2024-11-28 04:09:42,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:42,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:09:42,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:42,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:09:42,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:09:42,212 INFO L87 Difference]: Start difference. First operand 92439 states and 173954 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:48,580 INFO L93 Difference]: Finished difference Result 222138 states and 432796 transitions. [2024-11-28 04:09:48,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:48,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2024-11-28 04:09:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:49,516 INFO L225 Difference]: With dead ends: 222138 [2024-11-28 04:09:49,516 INFO L226 Difference]: Without dead ends: 131841 [2024-11-28 04:09:49,697 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 [2024-11-28 04:09:49,698 INFO L435 NwaCegarLoop]: 4427 mSDtfsCounter, 4827 mSDsluCounter, 8686 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 13113 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:49,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4848 Valid, 13113 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:09:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131841 states. [2024-11-28 04:09:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131841 to 92439. [2024-11-28 04:09:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92439 states, 86758 states have (on average 1.749152815878651) internal successors, (151753), 88821 states have internal predecessors, (151753), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2024-11-28 04:09:56,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92439 states to 92439 states and 173825 transitions. [2024-11-28 04:09:56,591 INFO L78 Accepts]: Start accepts. Automaton has 92439 states and 173825 transitions. Word has length 188 [2024-11-28 04:09:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:56,592 INFO L471 AbstractCegarLoop]: Abstraction has 92439 states and 173825 transitions. [2024-11-28 04:09:56,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:09:56,593 INFO L276 IsEmpty]: Start isEmpty. Operand 92439 states and 173825 transitions. [2024-11-28 04:09:56,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:09:56,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:56,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:56,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:09:56,633 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:56,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:56,634 INFO L85 PathProgramCache]: Analyzing trace with hash 253990335, now seen corresponding path program 1 times [2024-11-28 04:09:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437775479] [2024-11-28 04:09:56,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:56,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:56,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437775479] [2024-11-28 04:09:56,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437775479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:56,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:56,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:09:56,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145464022] [2024-11-28 04:09:56,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:56,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:09:56,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:56,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:09:56,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:09:56,962 INFO L87 Difference]: Start difference. First operand 92439 states and 173825 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)