./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.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_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/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_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/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_721d9618-2098-4540-b0aa-bea612e8b734/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 21399f6c1c6de0b812a418410b61643449f7872d7a63a6928748a1ba61200764 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:32:12,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:32:12,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:32:12,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:32:12,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:32:12,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:32:12,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:32:12,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:32:12,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:32:12,334 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:32:12,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:32:12,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:32:12,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:32:12,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:32:12,336 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:32:12,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:32:12,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:32:12,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:32:12,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:32:12,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:32:12,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:32:12,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:32:12,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:32:12,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:32:12,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:32:12,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:32:12,340 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:32:12,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:32:12,340 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:32:12,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:12,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:12,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:12,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:12,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:32:12,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:12,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:12,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:12,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:12,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:32:12,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:32:12,344 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_721d9618-2098-4540-b0aa-bea612e8b734/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 -> 21399f6c1c6de0b812a418410b61643449f7872d7a63a6928748a1ba61200764 [2024-11-27 20:32:12,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:32:12,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:32:12,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:32:12,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:32:12,731 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:32:12,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.c [2024-11-27 20:32:16,385 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/data/67336534b/9aad93d711cf4e2ca683c208010cc17c/FLAG25368a654 [2024-11-27 20:32:17,351 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:32:17,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.c [2024-11-27 20:32:17,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/data/67336534b/9aad93d711cf4e2ca683c208010cc17c/FLAG25368a654 [2024-11-27 20:32:17,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/data/67336534b/9aad93d711cf4e2ca683c208010cc17c [2024-11-27 20:32:17,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:32:17,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:32:17,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:17,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:32:17,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:32:17,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:17" (1/1) ... [2024-11-27 20:32:17,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663f91e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:17, skipping insertion in model container [2024-11-27 20:32:17,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:17" (1/1) ... [2024-11-27 20:32:17,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:32:20,374 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_721d9618-2098-4540-b0aa-bea612e8b734/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.c[382357,382370] [2024-11-27 20:32:20,428 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_721d9618-2098-4540-b0aa-bea612e8b734/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.c[383339,383352] [2024-11-27 20:32:20,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:20,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:32:22,116 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_721d9618-2098-4540-b0aa-bea612e8b734/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.c[382357,382370] [2024-11-27 20:32:22,120 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_721d9618-2098-4540-b0aa-bea612e8b734/sv-benchmarks/c/combinations/Problem05_label46+token_ring.05.cil-2.c[383339,383352] [2024-11-27 20:32:22,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:22,255 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:32:22,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22 WrapperNode [2024-11-27 20:32:22,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:22,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:22,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:32:22,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:32:22,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:22,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,138 INFO L138 Inliner]: procedures = 54, calls = 57, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 12810 [2024-11-27 20:32:23,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:23,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:32:23,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:32:23,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:32:23,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,419 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:32:23,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,630 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:32:23,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:32:23,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:32:23,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:32:23,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (1/1) ... [2024-11-27 20:32:23,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:23,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:23,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:32:23,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721d9618-2098-4540-b0aa-bea612e8b734/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:32:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:32:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-27 20:32:24,041 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-27 20:32:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-27 20:32:24,041 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-27 20:32:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-27 20:32:24,042 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-27 20:32:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-27 20:32:24,042 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-27 20:32:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-27 20:32:24,042 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-27 20:32:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-27 20:32:24,043 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-27 20:32:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-27 20:32:24,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-27 20:32:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:32:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:32:24,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:32:24,237 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:32:24,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:32:38,404 INFO L? ?]: Removed 1717 outVars from TransFormulas that were not future-live. [2024-11-27 20:32:38,405 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:32:38,521 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:32:38,521 INFO L312 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-27 20:32:38,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:38 BoogieIcfgContainer [2024-11-27 20:32:38,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:32:38,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:32:38,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:32:38,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:32:38,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:32:17" (1/3) ... [2024-11-27 20:32:38,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b306216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:38, skipping insertion in model container [2024-11-27 20:32:38,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:22" (2/3) ... [2024-11-27 20:32:38,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b306216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:38, skipping insertion in model container [2024-11-27 20:32:38,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:38" (3/3) ... [2024-11-27 20:32:38,538 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.05.cil-2.c [2024-11-27 20:32:38,559 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:32:38,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label46+token_ring.05.cil-2.c that has 8 procedures, 2396 locations, 1 initial locations, 9 loop locations, and 2 error locations. [2024-11-27 20:32:38,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:32:38,745 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;@14dff8ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:32:38,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 20:32:38,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 2366 states have (on average 1.852916314454776) internal successors, (4384), 2370 states have internal predecessors, (4384), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:32:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:38,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:38,778 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] [2024-11-27 20:32:38,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:38,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:38,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1171663229, now seen corresponding path program 1 times [2024-11-27 20:32:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:38,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352418531] [2024-11-27 20:32:38,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:38,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:39,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:39,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:39,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352418531] [2024-11-27 20:32:39,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352418531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:39,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:39,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:39,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889492712] [2024-11-27 20:32:39,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:39,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:39,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:39,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:39,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:39,511 INFO L87 Difference]: Start difference. First operand has 2396 states, 2366 states have (on average 1.852916314454776) internal successors, (4384), 2370 states have internal predecessors, (4384), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-27 20:32:39,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:39,869 INFO L93 Difference]: Finished difference Result 4783 states and 8837 transitions. [2024-11-27 20:32:39,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:39,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:39,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:39,900 INFO L225 Difference]: With dead ends: 4783 [2024-11-27 20:32:39,900 INFO L226 Difference]: Without dead ends: 2328 [2024-11-27 20:32:39,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:39,920 INFO L435 NwaCegarLoop]: 4343 mSDtfsCounter, 314 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:39,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 8365 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:39,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2024-11-27 20:32:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2328. [2024-11-27 20:32:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2328 states, 2299 states have (on average 1.8421052631578947) internal successors, (4235), 2302 states have internal predecessors, (4235), 21 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 20:32:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2328 states to 2328 states and 4275 transitions. [2024-11-27 20:32:40,139 INFO L78 Accepts]: Start accepts. Automaton has 2328 states and 4275 transitions. Word has length 100 [2024-11-27 20:32:40,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:40,143 INFO L471 AbstractCegarLoop]: Abstraction has 2328 states and 4275 transitions. [2024-11-27 20:32:40,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-27 20:32:40,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2328 states and 4275 transitions. [2024-11-27 20:32:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:40,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:40,152 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] [2024-11-27 20:32:40,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:32:40,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:40,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:40,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1942396795, now seen corresponding path program 1 times [2024-11-27 20:32:40,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:40,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130841605] [2024-11-27 20:32:40,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:40,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:40,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:40,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:40,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130841605] [2024-11-27 20:32:40,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130841605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:40,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:40,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:32:40,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844317159] [2024-11-27 20:32:40,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:40,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:40,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:40,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:40,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:40,655 INFO L87 Difference]: Start difference. First operand 2328 states and 4275 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-27 20:32:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:41,668 INFO L93 Difference]: Finished difference Result 2736 states and 4911 transitions. [2024-11-27 20:32:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:32:41,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:41,692 INFO L225 Difference]: With dead ends: 2736 [2024-11-27 20:32:41,692 INFO L226 Difference]: Without dead ends: 2542 [2024-11-27 20:32:41,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:41,695 INFO L435 NwaCegarLoop]: 4204 mSDtfsCounter, 4525 mSDsluCounter, 8529 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4538 SdHoareTripleChecker+Valid, 12733 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:41,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4538 Valid, 12733 Invalid, 396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:32:41,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-11-27 20:32:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2525. [2024-11-27 20:32:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 2475 states have (on average 1.823030303030303) internal successors, (4512), 2479 states have internal predecessors, (4512), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-27 20:32:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 4581 transitions. [2024-11-27 20:32:41,801 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 4581 transitions. Word has length 100 [2024-11-27 20:32:41,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:41,802 INFO L471 AbstractCegarLoop]: Abstraction has 2525 states and 4581 transitions. [2024-11-27 20:32:41,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-27 20:32:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 4581 transitions. [2024-11-27 20:32:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:41,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:41,805 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] [2024-11-27 20:32:41,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:32:41,809 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:41,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash 85898103, now seen corresponding path program 1 times [2024-11-27 20:32:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:41,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228901414] [2024-11-27 20:32:41,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:42,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:42,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:42,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228901414] [2024-11-27 20:32:42,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228901414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:42,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:42,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:32:42,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111508426] [2024-11-27 20:32:42,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:42,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:42,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:42,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:42,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:42,218 INFO L87 Difference]: Start difference. First operand 2525 states and 4581 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:43,204 INFO L93 Difference]: Finished difference Result 3165 states and 5584 transitions. [2024-11-27 20:32:43,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:32:43,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:43,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:43,223 INFO L225 Difference]: With dead ends: 3165 [2024-11-27 20:32:43,223 INFO L226 Difference]: Without dead ends: 2774 [2024-11-27 20:32:43,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:43,228 INFO L435 NwaCegarLoop]: 4369 mSDtfsCounter, 4520 mSDsluCounter, 13097 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4533 SdHoareTripleChecker+Valid, 17466 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:43,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4533 Valid, 17466 Invalid, 662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2024-11-27 20:32:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2709. [2024-11-27 20:32:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2638 states have (on average 1.8055344958301744) internal successors, (4763), 2643 states have internal predecessors, (4763), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-27 20:32:43,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 4863 transitions. [2024-11-27 20:32:43,355 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 4863 transitions. Word has length 100 [2024-11-27 20:32:43,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:43,356 INFO L471 AbstractCegarLoop]: Abstraction has 2709 states and 4863 transitions. [2024-11-27 20:32:43,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 4863 transitions. [2024-11-27 20:32:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:43,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:43,362 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] [2024-11-27 20:32:43,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:32:43,363 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:43,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1410754297, now seen corresponding path program 1 times [2024-11-27 20:32:43,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:43,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583270821] [2024-11-27 20:32:43,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:43,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:43,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583270821] [2024-11-27 20:32:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583270821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:43,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:43,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:32:43,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554471214] [2024-11-27 20:32:43,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:43,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:43,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:43,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:43,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:43,670 INFO L87 Difference]: Start difference. First operand 2709 states and 4863 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:44,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:44,598 INFO L93 Difference]: Finished difference Result 3737 states and 6469 transitions. [2024-11-27 20:32:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:32:44,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:44,618 INFO L225 Difference]: With dead ends: 3737 [2024-11-27 20:32:44,618 INFO L226 Difference]: Without dead ends: 3162 [2024-11-27 20:32:44,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:44,622 INFO L435 NwaCegarLoop]: 4361 mSDtfsCounter, 4512 mSDsluCounter, 13075 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4525 SdHoareTripleChecker+Valid, 17436 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:44,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4525 Valid, 17436 Invalid, 662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:44,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2024-11-27 20:32:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3095. [2024-11-27 20:32:44,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2980 states have (on average 1.7765100671140939) internal successors, (5294), 2989 states have internal predecessors, (5294), 77 states have call successors, (77), 31 states have call predecessors, (77), 36 states have return successors, (91), 78 states have call predecessors, (91), 75 states have call successors, (91) [2024-11-27 20:32:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 5462 transitions. [2024-11-27 20:32:44,785 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 5462 transitions. Word has length 100 [2024-11-27 20:32:44,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:44,786 INFO L471 AbstractCegarLoop]: Abstraction has 3095 states and 5462 transitions. [2024-11-27 20:32:44,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:44,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 5462 transitions. [2024-11-27 20:32:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:44,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:44,789 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] [2024-11-27 20:32:44,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:32:44,790 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:44,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:44,790 INFO L85 PathProgramCache]: Analyzing trace with hash 352916219, now seen corresponding path program 1 times [2024-11-27 20:32:44,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935242736] [2024-11-27 20:32:44,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:44,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:44,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:44,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935242736] [2024-11-27 20:32:44,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935242736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:44,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:44,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:32:44,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845473105] [2024-11-27 20:32:44,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:44,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:44,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:44,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:44,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:44,992 INFO L87 Difference]: Start difference. First operand 3095 states and 5462 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:45,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:45,968 INFO L93 Difference]: Finished difference Result 4959 states and 8398 transitions. [2024-11-27 20:32:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:32:45,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:45,992 INFO L225 Difference]: With dead ends: 4959 [2024-11-27 20:32:45,992 INFO L226 Difference]: Without dead ends: 3998 [2024-11-27 20:32:45,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:45,998 INFO L435 NwaCegarLoop]: 4358 mSDtfsCounter, 4507 mSDsluCounter, 13066 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 17424 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:45,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 17424 Invalid, 662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:46,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2024-11-27 20:32:46,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3918. [2024-11-27 20:32:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3709 states have (on average 1.7357778376921003) internal successors, (6438), 3732 states have internal predecessors, (6438), 133 states have call successors, (133), 55 states have call predecessors, (133), 74 states have return successors, (195), 138 states have call predecessors, (195), 131 states have call successors, (195) [2024-11-27 20:32:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 6766 transitions. [2024-11-27 20:32:46,356 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 6766 transitions. Word has length 100 [2024-11-27 20:32:46,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:46,358 INFO L471 AbstractCegarLoop]: Abstraction has 3918 states and 6766 transitions. [2024-11-27 20:32:46,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 6766 transitions. [2024-11-27 20:32:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:46,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:46,363 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] [2024-11-27 20:32:46,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:32:46,363 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:46,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:46,365 INFO L85 PathProgramCache]: Analyzing trace with hash -789586247, now seen corresponding path program 1 times [2024-11-27 20:32:46,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:46,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015127485] [2024-11-27 20:32:46,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:46,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:46,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:46,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015127485] [2024-11-27 20:32:46,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015127485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:46,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:46,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:32:46,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069032869] [2024-11-27 20:32:46,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:46,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:46,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:46,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:46,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:46,600 INFO L87 Difference]: Start difference. First operand 3918 states and 6766 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:47,667 INFO L93 Difference]: Finished difference Result 7588 states and 12668 transitions. [2024-11-27 20:32:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:32:47,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:47,703 INFO L225 Difference]: With dead ends: 7588 [2024-11-27 20:32:47,704 INFO L226 Difference]: Without dead ends: 5804 [2024-11-27 20:32:47,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:47,714 INFO L435 NwaCegarLoop]: 4355 mSDtfsCounter, 4502 mSDsluCounter, 13057 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 17412 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:47,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4515 Valid, 17412 Invalid, 662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:47,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5804 states. [2024-11-27 20:32:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5804 to 5699. [2024-11-27 20:32:48,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5284 states have (on average 1.6915215745647236) internal successors, (8938), 5353 states have internal predecessors, (8938), 245 states have call successors, (245), 103 states have call predecessors, (245), 168 states have return successors, (499), 258 states have call predecessors, (499), 243 states have call successors, (499) [2024-11-27 20:32:48,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 9682 transitions. [2024-11-27 20:32:48,089 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 9682 transitions. Word has length 100 [2024-11-27 20:32:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:48,089 INFO L471 AbstractCegarLoop]: Abstraction has 5699 states and 9682 transitions. [2024-11-27 20:32:48,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:48,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 9682 transitions. [2024-11-27 20:32:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:48,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:48,106 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] [2024-11-27 20:32:48,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:32:48,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:48,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:48,107 INFO L85 PathProgramCache]: Analyzing trace with hash -549346501, now seen corresponding path program 1 times [2024-11-27 20:32:48,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:48,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291811499] [2024-11-27 20:32:48,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:48,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:48,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:48,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:48,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291811499] [2024-11-27 20:32:48,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291811499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:48,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:48,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:32:48,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636141265] [2024-11-27 20:32:48,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:48,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:48,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:48,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:48,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:48,338 INFO L87 Difference]: Start difference. First operand 5699 states and 9682 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:49,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:49,679 INFO L93 Difference]: Finished difference Result 13967 states and 23383 transitions. [2024-11-27 20:32:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:32:49,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:49,771 INFO L225 Difference]: With dead ends: 13967 [2024-11-27 20:32:49,771 INFO L226 Difference]: Without dead ends: 10402 [2024-11-27 20:32:49,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:49,789 INFO L435 NwaCegarLoop]: 4211 mSDtfsCounter, 4687 mSDsluCounter, 12715 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4706 SdHoareTripleChecker+Valid, 16926 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:49,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4706 Valid, 16926 Invalid, 564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:49,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10402 states. [2024-11-27 20:32:50,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10402 to 9564. [2024-11-27 20:32:50,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9564 states, 8699 states have (on average 1.659731003563628) internal successors, (14438), 8914 states have internal predecessors, (14438), 453 states have call successors, (453), 199 states have call predecessors, (453), 410 states have return successors, (1475), 482 states have call predecessors, (1475), 451 states have call successors, (1475) [2024-11-27 20:32:50,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9564 states to 9564 states and 16366 transitions. [2024-11-27 20:32:50,446 INFO L78 Accepts]: Start accepts. Automaton has 9564 states and 16366 transitions. Word has length 100 [2024-11-27 20:32:50,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:50,446 INFO L471 AbstractCegarLoop]: Abstraction has 9564 states and 16366 transitions. [2024-11-27 20:32:50,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:50,447 INFO L276 IsEmpty]: Start isEmpty. Operand 9564 states and 16366 transitions. [2024-11-27 20:32:50,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:50,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:50,458 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] [2024-11-27 20:32:50,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:32:50,459 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:50,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:50,460 INFO L85 PathProgramCache]: Analyzing trace with hash 289687161, now seen corresponding path program 1 times [2024-11-27 20:32:50,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:50,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785745490] [2024-11-27 20:32:50,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:50,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:50,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:50,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785745490] [2024-11-27 20:32:50,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785745490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:50,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:50,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:32:50,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892206954] [2024-11-27 20:32:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:50,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:50,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:50,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:50,646 INFO L87 Difference]: Start difference. First operand 9564 states and 16366 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:52,614 INFO L93 Difference]: Finished difference Result 26914 states and 46997 transitions. [2024-11-27 20:32:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:32:52,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:52,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:52,769 INFO L225 Difference]: With dead ends: 26914 [2024-11-27 20:32:52,770 INFO L226 Difference]: Without dead ends: 19484 [2024-11-27 20:32:52,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:52,815 INFO L435 NwaCegarLoop]: 4346 mSDtfsCounter, 4534 mSDsluCounter, 13025 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 17371 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:52,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 17371 Invalid, 789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:32:52,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19484 states. [2024-11-27 20:32:54,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19484 to 17849. [2024-11-27 20:32:54,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17849 states, 15938 states have (on average 1.6402308947170285) internal successors, (26142), 16607 states have internal predecessors, (26142), 853 states have call successors, (853), 391 states have call predecessors, (853), 1056 states have return successors, (4947), 914 states have call predecessors, (4947), 851 states have call successors, (4947) [2024-11-27 20:32:54,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17849 states to 17849 states and 31942 transitions. [2024-11-27 20:32:54,336 INFO L78 Accepts]: Start accepts. Automaton has 17849 states and 31942 transitions. Word has length 100 [2024-11-27 20:32:54,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:54,337 INFO L471 AbstractCegarLoop]: Abstraction has 17849 states and 31942 transitions. [2024-11-27 20:32:54,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:54,337 INFO L276 IsEmpty]: Start isEmpty. Operand 17849 states and 31942 transitions. [2024-11-27 20:32:54,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:32:54,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:54,350 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] [2024-11-27 20:32:54,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:32:54,351 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:54,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:54,351 INFO L85 PathProgramCache]: Analyzing trace with hash 316752763, now seen corresponding path program 1 times [2024-11-27 20:32:54,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:54,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892404886] [2024-11-27 20:32:54,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:54,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:54,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892404886] [2024-11-27 20:32:54,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892404886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:54,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:54,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:32:54,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032055175] [2024-11-27 20:32:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:54,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:54,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:54,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:54,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:54,534 INFO L87 Difference]: Start difference. First operand 17849 states and 31942 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:32:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:56,875 INFO L93 Difference]: Finished difference Result 54721 states and 103947 transitions. [2024-11-27 20:32:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:32:56,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:32:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:57,140 INFO L225 Difference]: With dead ends: 54721 [2024-11-27 20:32:57,141 INFO L226 Difference]: Without dead ends: 39006 [2024-11-27 20:32:57,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:57,217 INFO L435 NwaCegarLoop]: 4344 mSDtfsCounter, 4591 mSDsluCounter, 13019 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4610 SdHoareTripleChecker+Valid, 17363 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:57,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4610 Valid, 17363 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39006 states. [2024-11-27 20:33:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39006 to 36798. [2024-11-27 20:33:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36798 states, 32341 states have (on average 1.636127516155963) internal successors, (52914), 34404 states have internal predecessors, (52914), 1621 states have call successors, (1621), 775 states have call predecessors, (1621), 2834 states have return successors, (18003), 1746 states have call predecessors, (18003), 1619 states have call successors, (18003) [2024-11-27 20:33:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36798 states to 36798 states and 72538 transitions. [2024-11-27 20:33:01,035 INFO L78 Accepts]: Start accepts. Automaton has 36798 states and 72538 transitions. Word has length 100 [2024-11-27 20:33:01,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:01,035 INFO L471 AbstractCegarLoop]: Abstraction has 36798 states and 72538 transitions. [2024-11-27 20:33:01,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:33:01,036 INFO L276 IsEmpty]: Start isEmpty. Operand 36798 states and 72538 transitions. [2024-11-27 20:33:01,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:33:01,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:01,067 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] [2024-11-27 20:33:01,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:33:01,067 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:01,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:01,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1760584135, now seen corresponding path program 1 times [2024-11-27 20:33:01,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:01,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610452030] [2024-11-27 20:33:01,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:01,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:01,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:01,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610452030] [2024-11-27 20:33:01,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610452030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:01,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:01,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:33:01,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365868334] [2024-11-27 20:33:01,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:01,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:33:01,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:01,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:33:01,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:33:01,304 INFO L87 Difference]: Start difference. First operand 36798 states and 72538 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:33:07,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:07,249 INFO L93 Difference]: Finished difference Result 117628 states and 257609 transitions. [2024-11-27 20:33:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:33:07,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:33:07,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:08,313 INFO L225 Difference]: With dead ends: 117628 [2024-11-27 20:33:08,313 INFO L226 Difference]: Without dead ends: 82964 [2024-11-27 20:33:08,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:33:08,464 INFO L435 NwaCegarLoop]: 4341 mSDtfsCounter, 4556 mSDsluCounter, 13010 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4575 SdHoareTripleChecker+Valid, 17351 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:08,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4575 Valid, 17351 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:33:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82964 states. [2024-11-27 20:33:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82964 to 79607. [2024-11-27 20:33:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79607 states, 68664 states have (on average 1.63255854596295) internal successors, (112098), 74973 states have internal predecessors, (112098), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-27 20:33:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79607 states to 79607 states and 183818 transitions. [2024-11-27 20:33:17,152 INFO L78 Accepts]: Start accepts. Automaton has 79607 states and 183818 transitions. Word has length 100 [2024-11-27 20:33:17,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:17,153 INFO L471 AbstractCegarLoop]: Abstraction has 79607 states and 183818 transitions. [2024-11-27 20:33:17,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:33:17,153 INFO L276 IsEmpty]: Start isEmpty. Operand 79607 states and 183818 transitions. [2024-11-27 20:33:17,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:33:17,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:17,212 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] [2024-11-27 20:33:17,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:33:17,213 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:17,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:17,214 INFO L85 PathProgramCache]: Analyzing trace with hash -26479685, now seen corresponding path program 1 times [2024-11-27 20:33:17,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:17,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163224613] [2024-11-27 20:33:17,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:17,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:17,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:17,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163224613] [2024-11-27 20:33:17,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163224613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:17,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:17,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:33:17,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805628078] [2024-11-27 20:33:17,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:17,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:33:17,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:17,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:33:17,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:17,440 INFO L87 Difference]: Start difference. First operand 79607 states and 183818 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-27 20:33:24,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:24,996 INFO L93 Difference]: Finished difference Result 170206 states and 436273 transitions. [2024-11-27 20:33:24,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:33:24,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 100 [2024-11-27 20:33:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:26,538 INFO L225 Difference]: With dead ends: 170206 [2024-11-27 20:33:26,538 INFO L226 Difference]: Without dead ends: 92733 [2024-11-27 20:33:26,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:33:26,945 INFO L435 NwaCegarLoop]: 4173 mSDtfsCounter, 4356 mSDsluCounter, 8255 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4369 SdHoareTripleChecker+Valid, 12428 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:26,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4369 Valid, 12428 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:33:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92733 states.