./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 54199c4744c1bc6f90b801fad85d1b6d237818e3b8e71cae069cfd39ac31a054 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:55:34,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:55:34,481 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:55:34,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:55:34,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:55:34,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:55:34,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:55:34,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:55:34,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:55:34,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:55:34,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:55:34,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:55:34,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:55:34,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:55:34,522 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:55:34,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:55:34,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:55:34,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:55:34,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:55:34,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:55:34,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:55:34,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:55:34,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:55:34,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:55:34,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:55:34,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:55:34,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:55:34,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:55:34,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:55:34,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:55:34,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:55:34,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:55:34,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:55:34,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:55:34,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:55:34,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:55:34,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:55:34,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:55:34,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:55:34,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:55:34,532 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:55:34,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:55:34,533 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54199c4744c1bc6f90b801fad85d1b6d237818e3b8e71cae069cfd39ac31a054 [2024-10-24 01:55:34,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:55:34,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:55:34,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:55:34,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:55:34,836 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:55:34,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-24 01:55:36,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:55:36,454 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:55:36,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-24 01:55:36,476 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a2d869f/26fb3e2123174128b1cc9d8c56da3c7c/FLAG1b24f0fec [2024-10-24 01:55:36,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a2d869f/26fb3e2123174128b1cc9d8c56da3c7c [2024-10-24 01:55:36,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:55:36,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:55:36,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:55:36,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:55:36,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:55:36,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:55:36" (1/1) ... [2024-10-24 01:55:36,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f26e6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:36, skipping insertion in model container [2024-10-24 01:55:36,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:55:36" (1/1) ... [2024-10-24 01:55:36,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:55:36,875 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15593,15606] [2024-10-24 01:55:36,911 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16240,16253] [2024-10-24 01:55:36,932 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17624,17637] [2024-10-24 01:55:36,943 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18600,18613] [2024-10-24 01:55:37,061 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27965,27978] [2024-10-24 01:55:37,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:55:37,115 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:55:37,198 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15593,15606] [2024-10-24 01:55:37,202 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16240,16253] [2024-10-24 01:55:37,210 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17624,17637] [2024-10-24 01:55:37,215 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18600,18613] [2024-10-24 01:55:37,258 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27965,27978] [2024-10-24 01:55:37,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:55:37,299 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:55:37,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37 WrapperNode [2024-10-24 01:55:37,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:55:37,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:55:37,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:55:37,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:55:37,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,396 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1795 [2024-10-24 01:55:37,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:55:37,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:55:37,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:55:37,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:55:37,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,451 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]. [2024-10-24 01:55:37,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:55:37,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:55:37,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:55:37,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:55:37,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (1/1) ... [2024-10-24 01:55:37,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:55:37,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:55:37,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:55:37,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:55:37,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:55:37,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:55:37,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:55:37,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:55:37,716 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:55:37,718 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:55:38,753 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-24 01:55:38,753 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:55:38,809 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:55:38,810 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:55:38,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:55:38 BoogieIcfgContainer [2024-10-24 01:55:38,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:55:38,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:55:38,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:55:38,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:55:38,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:55:36" (1/3) ... [2024-10-24 01:55:38,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3badc4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:55:38, skipping insertion in model container [2024-10-24 01:55:38,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:55:37" (2/3) ... [2024-10-24 01:55:38,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3badc4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:55:38, skipping insertion in model container [2024-10-24 01:55:38,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:55:38" (3/3) ... [2024-10-24 01:55:38,821 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-24 01:55:38,835 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:55:38,836 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-24 01:55:38,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:55:38,911 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;@7855ef7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:55:38,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-24 01:55:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 416 states have (on average 1.8076923076923077) internal successors, (752), 421 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 01:55:38,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:38,942 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:38,943 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:38,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash 54352472, now seen corresponding path program 1 times [2024-10-24 01:55:38,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:38,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770333894] [2024-10-24 01:55:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:38,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:39,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:39,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770333894] [2024-10-24 01:55:39,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770333894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:39,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:39,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:39,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565324390] [2024-10-24 01:55:39,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:39,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:39,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:39,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:39,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:39,560 INFO L87 Difference]: Start difference. First operand has 422 states, 416 states have (on average 1.8076923076923077) internal successors, (752), 421 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:39,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:39,738 INFO L93 Difference]: Finished difference Result 774 states and 1362 transitions. [2024-10-24 01:55:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:39,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2024-10-24 01:55:39,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:39,753 INFO L225 Difference]: With dead ends: 774 [2024-10-24 01:55:39,753 INFO L226 Difference]: Without dead ends: 611 [2024-10-24 01:55:39,756 INFO L431 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 [2024-10-24 01:55:39,759 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 445 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:39,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1357 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:55:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-10-24 01:55:39,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 609. [2024-10-24 01:55:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 604 states have (on average 1.4801324503311257) internal successors, (894), 608 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 894 transitions. [2024-10-24 01:55:39,817 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 894 transitions. Word has length 149 [2024-10-24 01:55:39,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:39,817 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 894 transitions. [2024-10-24 01:55:39,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 894 transitions. [2024-10-24 01:55:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 01:55:39,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:39,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:39,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:55:39,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:39,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash -343663272, now seen corresponding path program 1 times [2024-10-24 01:55:39,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:39,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959377723] [2024-10-24 01:55:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:39,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:40,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:40,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959377723] [2024-10-24 01:55:40,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959377723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:40,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:40,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:40,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105494476] [2024-10-24 01:55:40,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:40,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:40,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:40,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:40,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:40,065 INFO L87 Difference]: Start difference. First operand 609 states and 894 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:40,183 INFO L93 Difference]: Finished difference Result 1234 states and 1869 transitions. [2024-10-24 01:55:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:40,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2024-10-24 01:55:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:40,188 INFO L225 Difference]: With dead ends: 1234 [2024-10-24 01:55:40,188 INFO L226 Difference]: Without dead ends: 1011 [2024-10-24 01:55:40,189 INFO L431 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 [2024-10-24 01:55:40,190 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 369 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:40,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1120 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:55:40,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-10-24 01:55:40,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1009. [2024-10-24 01:55:40,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.5) internal successors, (1506), 1008 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1506 transitions. [2024-10-24 01:55:40,232 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1506 transitions. Word has length 149 [2024-10-24 01:55:40,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:40,232 INFO L471 AbstractCegarLoop]: Abstraction has 1009 states and 1506 transitions. [2024-10-24 01:55:40,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1506 transitions. [2024-10-24 01:55:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 01:55:40,234 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:40,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:40,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:55:40,235 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:40,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:40,236 INFO L85 PathProgramCache]: Analyzing trace with hash -344094248, now seen corresponding path program 1 times [2024-10-24 01:55:40,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:40,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671404090] [2024-10-24 01:55:40,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:40,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:40,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:40,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671404090] [2024-10-24 01:55:40,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671404090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:40,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:40,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:40,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700169295] [2024-10-24 01:55:40,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:40,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:55:40,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:40,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:55:40,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:40,763 INFO L87 Difference]: Start difference. First operand 1009 states and 1506 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:40,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:40,877 INFO L93 Difference]: Finished difference Result 3889 states and 5775 transitions. [2024-10-24 01:55:40,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:55:40,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2024-10-24 01:55:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:40,888 INFO L225 Difference]: With dead ends: 3889 [2024-10-24 01:55:40,888 INFO L226 Difference]: Without dead ends: 2904 [2024-10-24 01:55:40,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:40,895 INFO L432 NwaCegarLoop]: 985 mSDtfsCounter, 1246 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:40,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 2076 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:55:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2024-10-24 01:55:40,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1916. [2024-10-24 01:55:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1911 states have (on average 1.488749345892203) internal successors, (2845), 1915 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2845 transitions. [2024-10-24 01:55:40,952 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2845 transitions. Word has length 149 [2024-10-24 01:55:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:40,953 INFO L471 AbstractCegarLoop]: Abstraction has 1916 states and 2845 transitions. [2024-10-24 01:55:40,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2845 transitions. [2024-10-24 01:55:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 01:55:40,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:40,957 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:40,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:55:40,958 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:40,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:40,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1977508618, now seen corresponding path program 1 times [2024-10-24 01:55:40,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:40,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842546432] [2024-10-24 01:55:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:40,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:41,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:41,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:41,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842546432] [2024-10-24 01:55:41,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842546432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:41,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:41,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:41,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038864592] [2024-10-24 01:55:41,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:41,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:41,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:41,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:41,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:41,080 INFO L87 Difference]: Start difference. First operand 1916 states and 2845 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:41,144 INFO L93 Difference]: Finished difference Result 3807 states and 5647 transitions. [2024-10-24 01:55:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:41,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2024-10-24 01:55:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:41,154 INFO L225 Difference]: With dead ends: 3807 [2024-10-24 01:55:41,154 INFO L226 Difference]: Without dead ends: 1918 [2024-10-24 01:55:41,157 INFO L431 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 [2024-10-24 01:55:41,158 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 0 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:41,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1203 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:41,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2024-10-24 01:55:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1918. [2024-10-24 01:55:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1913 states have (on average 1.488238369053842) internal successors, (2847), 1917 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2847 transitions. [2024-10-24 01:55:41,195 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2847 transitions. Word has length 150 [2024-10-24 01:55:41,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:41,195 INFO L471 AbstractCegarLoop]: Abstraction has 1918 states and 2847 transitions. [2024-10-24 01:55:41,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2847 transitions. [2024-10-24 01:55:41,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:55:41,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:41,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:41,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:55:41,198 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:41,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:41,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2073680487, now seen corresponding path program 1 times [2024-10-24 01:55:41,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:41,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90558797] [2024-10-24 01:55:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:41,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:41,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90558797] [2024-10-24 01:55:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90558797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:41,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:41,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:55:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448211068] [2024-10-24 01:55:41,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:41,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:55:41,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:41,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:55:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:41,642 INFO L87 Difference]: Start difference. First operand 1918 states and 2847 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:41,676 INFO L93 Difference]: Finished difference Result 3823 states and 5673 transitions. [2024-10-24 01:55:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:55:41,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2024-10-24 01:55:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:41,682 INFO L225 Difference]: With dead ends: 3823 [2024-10-24 01:55:41,683 INFO L226 Difference]: Without dead ends: 1918 [2024-10-24 01:55:41,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:41,687 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 20 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:41,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1876 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:41,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2024-10-24 01:55:41,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1917. [2024-10-24 01:55:41,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1912 states have (on average 1.4869246861924685) internal successors, (2843), 1916 states have internal predecessors, (2843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2843 transitions. [2024-10-24 01:55:41,721 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2843 transitions. Word has length 151 [2024-10-24 01:55:41,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:41,721 INFO L471 AbstractCegarLoop]: Abstraction has 1917 states and 2843 transitions. [2024-10-24 01:55:41,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2843 transitions. [2024-10-24 01:55:41,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:55:41,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:41,724 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:41,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:55:41,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:41,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:41,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1346867076, now seen corresponding path program 1 times [2024-10-24 01:55:41,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:41,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383427910] [2024-10-24 01:55:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:41,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:41,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:41,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383427910] [2024-10-24 01:55:41,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383427910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:41,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:41,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:41,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008469995] [2024-10-24 01:55:41,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:41,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:41,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:41,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:41,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:41,820 INFO L87 Difference]: Start difference. First operand 1917 states and 2843 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:41,899 INFO L93 Difference]: Finished difference Result 5442 states and 8070 transitions. [2024-10-24 01:55:41,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:41,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2024-10-24 01:55:41,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:41,909 INFO L225 Difference]: With dead ends: 5442 [2024-10-24 01:55:41,909 INFO L226 Difference]: Without dead ends: 3716 [2024-10-24 01:55:41,914 INFO L431 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 [2024-10-24 01:55:41,915 INFO L432 NwaCegarLoop]: 1148 mSDtfsCounter, 526 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:41,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1701 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:41,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2024-10-24 01:55:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3674. [2024-10-24 01:55:41,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3669 states have (on average 1.473426001635323) internal successors, (5406), 3673 states have internal predecessors, (5406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 5406 transitions. [2024-10-24 01:55:41,977 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 5406 transitions. Word has length 151 [2024-10-24 01:55:41,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:41,978 INFO L471 AbstractCegarLoop]: Abstraction has 3674 states and 5406 transitions. [2024-10-24 01:55:41,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5406 transitions. [2024-10-24 01:55:41,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:55:41,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:41,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:41,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:55:41,982 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:41,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:41,983 INFO L85 PathProgramCache]: Analyzing trace with hash 949895841, now seen corresponding path program 1 times [2024-10-24 01:55:41,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:41,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984652635] [2024-10-24 01:55:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:41,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:42,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:42,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984652635] [2024-10-24 01:55:42,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984652635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:42,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:42,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:55:42,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755337790] [2024-10-24 01:55:42,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:42,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:55:42,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:42,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:55:42,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:42,411 INFO L87 Difference]: Start difference. First operand 3674 states and 5406 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:42,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:42,453 INFO L93 Difference]: Finished difference Result 6316 states and 9302 transitions. [2024-10-24 01:55:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:55:42,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2024-10-24 01:55:42,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:42,461 INFO L225 Difference]: With dead ends: 6316 [2024-10-24 01:55:42,461 INFO L226 Difference]: Without dead ends: 2821 [2024-10-24 01:55:42,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:42,467 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 23 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:42,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1880 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:42,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2024-10-24 01:55:42,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2821. [2024-10-24 01:55:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2816 states have (on average 1.4691051136363635) internal successors, (4137), 2820 states have internal predecessors, (4137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4137 transitions. [2024-10-24 01:55:42,516 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4137 transitions. Word has length 151 [2024-10-24 01:55:42,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:42,516 INFO L471 AbstractCegarLoop]: Abstraction has 2821 states and 4137 transitions. [2024-10-24 01:55:42,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4137 transitions. [2024-10-24 01:55:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 01:55:42,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:42,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:42,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:55:42,521 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:42,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:42,522 INFO L85 PathProgramCache]: Analyzing trace with hash 923907827, now seen corresponding path program 1 times [2024-10-24 01:55:42,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:42,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52778796] [2024-10-24 01:55:42,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:42,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:42,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:42,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52778796] [2024-10-24 01:55:42,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52778796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:42,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:42,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:42,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874283408] [2024-10-24 01:55:42,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:42,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:42,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:42,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:42,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:42,593 INFO L87 Difference]: Start difference. First operand 2821 states and 4137 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:42,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:42,644 INFO L93 Difference]: Finished difference Result 6999 states and 10452 transitions. [2024-10-24 01:55:42,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:42,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-10-24 01:55:42,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:42,656 INFO L225 Difference]: With dead ends: 6999 [2024-10-24 01:55:42,656 INFO L226 Difference]: Without dead ends: 4359 [2024-10-24 01:55:42,660 INFO L431 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 [2024-10-24 01:55:42,662 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 315 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:42,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1273 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4359 states. [2024-10-24 01:55:42,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4359 to 3705. [2024-10-24 01:55:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3705 states, 3700 states have (on average 1.5075675675675675) internal successors, (5578), 3704 states have internal predecessors, (5578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:42,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 5578 transitions. [2024-10-24 01:55:42,767 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 5578 transitions. Word has length 153 [2024-10-24 01:55:42,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:42,767 INFO L471 AbstractCegarLoop]: Abstraction has 3705 states and 5578 transitions. [2024-10-24 01:55:42,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:42,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 5578 transitions. [2024-10-24 01:55:42,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 01:55:42,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:42,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:42,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:55:42,771 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:42,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash 150956562, now seen corresponding path program 1 times [2024-10-24 01:55:42,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:42,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499681983] [2024-10-24 01:55:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:42,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:42,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499681983] [2024-10-24 01:55:42,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499681983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:42,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:42,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584585437] [2024-10-24 01:55:42,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:42,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:42,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:42,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:42,845 INFO L87 Difference]: Start difference. First operand 3705 states and 5578 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:42,911 INFO L93 Difference]: Finished difference Result 9359 states and 14329 transitions. [2024-10-24 01:55:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:42,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-10-24 01:55:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:42,935 INFO L225 Difference]: With dead ends: 9359 [2024-10-24 01:55:42,938 INFO L226 Difference]: Without dead ends: 5919 [2024-10-24 01:55:42,944 INFO L431 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 [2024-10-24 01:55:42,945 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 352 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:42,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1275 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:42,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5919 states. [2024-10-24 01:55:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5919 to 5261. [2024-10-24 01:55:43,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5256 states have (on average 1.5416666666666667) internal successors, (8103), 5260 states have internal predecessors, (8103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:43,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 8103 transitions. [2024-10-24 01:55:43,036 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 8103 transitions. Word has length 155 [2024-10-24 01:55:43,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:43,036 INFO L471 AbstractCegarLoop]: Abstraction has 5261 states and 8103 transitions. [2024-10-24 01:55:43,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 8103 transitions. [2024-10-24 01:55:43,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 01:55:43,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:43,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:43,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:55:43,040 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:43,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash 736592117, now seen corresponding path program 1 times [2024-10-24 01:55:43,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:43,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482676954] [2024-10-24 01:55:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:43,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:43,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482676954] [2024-10-24 01:55:43,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482676954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:43,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:43,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:55:43,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585758146] [2024-10-24 01:55:43,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:43,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:55:43,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:43,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:55:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:55:43,547 INFO L87 Difference]: Start difference. First operand 5261 states and 8103 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:44,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:44,430 INFO L93 Difference]: Finished difference Result 26959 states and 42158 transitions. [2024-10-24 01:55:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:55:44,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-10-24 01:55:44,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:44,467 INFO L225 Difference]: With dead ends: 26959 [2024-10-24 01:55:44,467 INFO L226 Difference]: Without dead ends: 21912 [2024-10-24 01:55:44,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:55:44,478 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 6815 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6815 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:44,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6815 Valid, 2787 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 01:55:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21912 states. [2024-10-24 01:55:44,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21912 to 14233. [2024-10-24 01:55:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14233 states, 14228 states have (on average 1.5345094180489176) internal successors, (21833), 14232 states have internal predecessors, (21833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14233 states to 14233 states and 21833 transitions. [2024-10-24 01:55:44,743 INFO L78 Accepts]: Start accepts. Automaton has 14233 states and 21833 transitions. Word has length 156 [2024-10-24 01:55:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:44,743 INFO L471 AbstractCegarLoop]: Abstraction has 14233 states and 21833 transitions. [2024-10-24 01:55:44,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 14233 states and 21833 transitions. [2024-10-24 01:55:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 01:55:44,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:44,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:44,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:55:44,749 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:44,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:44,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1425798201, now seen corresponding path program 1 times [2024-10-24 01:55:44,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:44,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706205753] [2024-10-24 01:55:44,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:44,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:45,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:45,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706205753] [2024-10-24 01:55:45,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706205753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:45,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:45,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:55:45,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722078436] [2024-10-24 01:55:45,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:45,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:55:45,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:55:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:45,036 INFO L87 Difference]: Start difference. First operand 14233 states and 21833 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:45,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:45,168 INFO L93 Difference]: Finished difference Result 28030 states and 43986 transitions. [2024-10-24 01:55:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:55:45,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-10-24 01:55:45,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:45,197 INFO L225 Difference]: With dead ends: 28030 [2024-10-24 01:55:45,197 INFO L226 Difference]: Without dead ends: 17545 [2024-10-24 01:55:45,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:45,211 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 1008 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:45,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 1039 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:55:45,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17545 states. [2024-10-24 01:55:45,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17545 to 17543. [2024-10-24 01:55:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17543 states, 17538 states have (on average 1.5404835214961796) internal successors, (27017), 17542 states have internal predecessors, (27017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17543 states to 17543 states and 27017 transitions. [2024-10-24 01:55:45,550 INFO L78 Accepts]: Start accepts. Automaton has 17543 states and 27017 transitions. Word has length 156 [2024-10-24 01:55:45,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:45,550 INFO L471 AbstractCegarLoop]: Abstraction has 17543 states and 27017 transitions. [2024-10-24 01:55:45,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 17543 states and 27017 transitions. [2024-10-24 01:55:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 01:55:45,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:45,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:45,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:55:45,556 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:45,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:45,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1121598644, now seen corresponding path program 1 times [2024-10-24 01:55:45,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:45,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210284154] [2024-10-24 01:55:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:45,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:45,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:45,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210284154] [2024-10-24 01:55:45,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210284154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:45,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:45,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:45,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154887923] [2024-10-24 01:55:45,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:45,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:55:45,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:45,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:55:45,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:45,880 INFO L87 Difference]: Start difference. First operand 17543 states and 27017 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:46,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:46,069 INFO L93 Difference]: Finished difference Result 46379 states and 71315 transitions. [2024-10-24 01:55:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:55:46,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-10-24 01:55:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:46,121 INFO L225 Difference]: With dead ends: 46379 [2024-10-24 01:55:46,121 INFO L226 Difference]: Without dead ends: 28862 [2024-10-24 01:55:46,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:55:46,145 INFO L432 NwaCegarLoop]: 1035 mSDtfsCounter, 520 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:46,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 2569 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:55:46,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28862 states. [2024-10-24 01:55:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28862 to 28828. [2024-10-24 01:55:46,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28828 states, 28823 states have (on average 1.5236096173195017) internal successors, (43915), 28827 states have internal predecessors, (43915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28828 states to 28828 states and 43915 transitions. [2024-10-24 01:55:46,709 INFO L78 Accepts]: Start accepts. Automaton has 28828 states and 43915 transitions. Word has length 156 [2024-10-24 01:55:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:46,710 INFO L471 AbstractCegarLoop]: Abstraction has 28828 states and 43915 transitions. [2024-10-24 01:55:46,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 28828 states and 43915 transitions. [2024-10-24 01:55:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 01:55:46,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:46,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:46,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:55:46,722 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:46,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:46,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1068049106, now seen corresponding path program 1 times [2024-10-24 01:55:46,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:46,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695247052] [2024-10-24 01:55:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:46,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:46,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695247052] [2024-10-24 01:55:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695247052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:46,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:46,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:46,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405454283] [2024-10-24 01:55:46,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:46,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:46,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:46,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:46,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:46,824 INFO L87 Difference]: Start difference. First operand 28828 states and 43915 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:47,085 INFO L93 Difference]: Finished difference Result 73510 states and 112060 transitions. [2024-10-24 01:55:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:47,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2024-10-24 01:55:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:47,168 INFO L225 Difference]: With dead ends: 73510 [2024-10-24 01:55:47,168 INFO L226 Difference]: Without dead ends: 45073 [2024-10-24 01:55:47,202 INFO L431 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 [2024-10-24 01:55:47,203 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 517 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:47,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1209 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:55:47,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45073 states. [2024-10-24 01:55:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45073 to 45043. [2024-10-24 01:55:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45043 states, 45038 states have (on average 1.5104134286602424) internal successors, (68026), 45042 states have internal predecessors, (68026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:47,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45043 states to 45043 states and 68026 transitions. [2024-10-24 01:55:47,997 INFO L78 Accepts]: Start accepts. Automaton has 45043 states and 68026 transitions. Word has length 158 [2024-10-24 01:55:47,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:47,997 INFO L471 AbstractCegarLoop]: Abstraction has 45043 states and 68026 transitions. [2024-10-24 01:55:47,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:47,997 INFO L276 IsEmpty]: Start isEmpty. Operand 45043 states and 68026 transitions. [2024-10-24 01:55:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 01:55:48,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:48,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:48,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:55:48,011 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:48,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:48,012 INFO L85 PathProgramCache]: Analyzing trace with hash 552005941, now seen corresponding path program 1 times [2024-10-24 01:55:48,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:48,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885196741] [2024-10-24 01:55:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:48,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:48,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:48,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885196741] [2024-10-24 01:55:48,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885196741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:48,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:48,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:48,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784493385] [2024-10-24 01:55:48,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:48,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:48,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:48,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:48,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:48,082 INFO L87 Difference]: Start difference. First operand 45043 states and 68026 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:48,643 INFO L93 Difference]: Finished difference Result 121201 states and 184918 transitions. [2024-10-24 01:55:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:48,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-10-24 01:55:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:48,826 INFO L225 Difference]: With dead ends: 121201 [2024-10-24 01:55:48,826 INFO L226 Difference]: Without dead ends: 76489 [2024-10-24 01:55:48,858 INFO L431 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 [2024-10-24 01:55:48,859 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 308 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:48,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1253 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76489 states. [2024-10-24 01:55:49,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76489 to 69299. [2024-10-24 01:55:49,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69299 states, 69294 states have (on average 1.5401189136144544) internal successors, (106721), 69298 states have internal predecessors, (106721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69299 states to 69299 states and 106721 transitions. [2024-10-24 01:55:49,888 INFO L78 Accepts]: Start accepts. Automaton has 69299 states and 106721 transitions. Word has length 162 [2024-10-24 01:55:49,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:49,888 INFO L471 AbstractCegarLoop]: Abstraction has 69299 states and 106721 transitions. [2024-10-24 01:55:49,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:49,889 INFO L276 IsEmpty]: Start isEmpty. Operand 69299 states and 106721 transitions. [2024-10-24 01:55:49,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-24 01:55:49,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:49,902 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:49,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:55:49,902 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:49,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash 944847170, now seen corresponding path program 1 times [2024-10-24 01:55:49,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:49,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109015646] [2024-10-24 01:55:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:49,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:49,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:49,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109015646] [2024-10-24 01:55:49,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109015646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:49,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:49,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:49,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231500733] [2024-10-24 01:55:49,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:49,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:55:49,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:49,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:55:49,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:55:49,970 INFO L87 Difference]: Start difference. First operand 69299 states and 106721 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:51,201 INFO L93 Difference]: Finished difference Result 203094 states and 313447 transitions. [2024-10-24 01:55:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:55:51,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-10-24 01:55:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:51,448 INFO L225 Difference]: With dead ends: 203094 [2024-10-24 01:55:51,448 INFO L226 Difference]: Without dead ends: 136302 [2024-10-24 01:55:51,505 INFO L431 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 [2024-10-24 01:55:51,506 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 493 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:51,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1204 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:55:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136302 states. [2024-10-24 01:55:53,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136302 to 136244. [2024-10-24 01:55:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136244 states, 136239 states have (on average 1.5332907610889686) internal successors, (208894), 136243 states have internal predecessors, (208894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136244 states to 136244 states and 208894 transitions. [2024-10-24 01:55:53,700 INFO L78 Accepts]: Start accepts. Automaton has 136244 states and 208894 transitions. Word has length 163 [2024-10-24 01:55:53,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:53,700 INFO L471 AbstractCegarLoop]: Abstraction has 136244 states and 208894 transitions. [2024-10-24 01:55:53,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 136244 states and 208894 transitions. [2024-10-24 01:55:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-24 01:55:53,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:53,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:55:53,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:55:53,731 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:55:53,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:53,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1702042823, now seen corresponding path program 1 times [2024-10-24 01:55:53,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:53,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006476020] [2024-10-24 01:55:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:53,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:54,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:54,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:54,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006476020] [2024-10-24 01:55:54,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006476020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:54,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:54,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:55:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889999456] [2024-10-24 01:55:54,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:54,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:55:54,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:54,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:55:54,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:54,444 INFO L87 Difference]: Start difference. First operand 136244 states and 208894 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:55:56,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:56,051 INFO L93 Difference]: Finished difference Result 495335 states and 758377 transitions. [2024-10-24 01:55:56,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:55:56,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-10-24 01:55:56,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:57,125 INFO L225 Difference]: With dead ends: 495335 [2024-10-24 01:55:57,125 INFO L226 Difference]: Without dead ends: 359141 [2024-10-24 01:55:57,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:57,236 INFO L432 NwaCegarLoop]: 1028 mSDtfsCounter, 1107 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:57,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 2093 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:55:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359141 states. [2024-10-24 01:56:01,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359141 to 247639. [2024-10-24 01:56:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247639 states, 247634 states have (on average 1.5186848332619916) internal successors, (376078), 247638 states have internal predecessors, (376078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247639 states to 247639 states and 376078 transitions. [2024-10-24 01:56:02,417 INFO L78 Accepts]: Start accepts. Automaton has 247639 states and 376078 transitions. Word has length 163 [2024-10-24 01:56:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:56:02,418 INFO L471 AbstractCegarLoop]: Abstraction has 247639 states and 376078 transitions. [2024-10-24 01:56:02,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 247639 states and 376078 transitions. [2024-10-24 01:56:02,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 01:56:02,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:56:02,461 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:56:02,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:56:02,461 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:56:02,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:56:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash -716832197, now seen corresponding path program 1 times [2024-10-24 01:56:02,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:56:02,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922679515] [2024-10-24 01:56:02,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:56:02,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:56:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:56:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:56:02,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:56:02,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922679515] [2024-10-24 01:56:02,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922679515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:56:02,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:56:02,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:56:02,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477457933] [2024-10-24 01:56:02,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:56:02,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:56:02,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:56:02,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:56:02,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:56:02,580 INFO L87 Difference]: Start difference. First operand 247639 states and 376078 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:04,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:56:04,517 INFO L93 Difference]: Finished difference Result 495177 states and 752022 transitions. [2024-10-24 01:56:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:56:04,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2024-10-24 01:56:04,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:56:05,013 INFO L225 Difference]: With dead ends: 495177 [2024-10-24 01:56:05,013 INFO L226 Difference]: Without dead ends: 247645 [2024-10-24 01:56:05,175 INFO L431 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 [2024-10-24 01:56:05,175 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 0 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:56:05,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:56:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247645 states. [2024-10-24 01:56:08,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247645 to 247645. [2024-10-24 01:56:09,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247645 states, 247640 states have (on average 1.5186722661928607) internal successors, (376084), 247644 states have internal predecessors, (376084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247645 states to 247645 states and 376084 transitions. [2024-10-24 01:56:10,181 INFO L78 Accepts]: Start accepts. Automaton has 247645 states and 376084 transitions. Word has length 164 [2024-10-24 01:56:10,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:56:10,181 INFO L471 AbstractCegarLoop]: Abstraction has 247645 states and 376084 transitions. [2024-10-24 01:56:10,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 247645 states and 376084 transitions. [2024-10-24 01:56:10,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 01:56:10,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:56:10,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:56:10,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:56:10,208 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:56:10,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:56:10,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1739600776, now seen corresponding path program 1 times [2024-10-24 01:56:10,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:56:10,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821197326] [2024-10-24 01:56:10,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:56:10,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:56:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:56:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:56:10,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:56:10,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821197326] [2024-10-24 01:56:10,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821197326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:56:10,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:56:10,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:56:10,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890072376] [2024-10-24 01:56:10,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:56:10,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:56:10,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:56:10,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:56:10,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:56:10,561 INFO L87 Difference]: Start difference. First operand 247645 states and 376084 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:12,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:56:12,274 INFO L93 Difference]: Finished difference Result 495189 states and 752037 transitions. [2024-10-24 01:56:12,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:56:12,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2024-10-24 01:56:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:56:12,741 INFO L225 Difference]: With dead ends: 495189 [2024-10-24 01:56:12,741 INFO L226 Difference]: Without dead ends: 247645 [2024-10-24 01:56:12,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:56:12,899 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 10 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:56:12,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1804 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:56:13,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247645 states. [2024-10-24 01:56:16,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247645 to 247642. [2024-10-24 01:56:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247642 states, 247637 states have (on average 1.5186502824699055) internal successors, (376074), 247641 states have internal predecessors, (376074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247642 states to 247642 states and 376074 transitions. [2024-10-24 01:56:17,225 INFO L78 Accepts]: Start accepts. Automaton has 247642 states and 376074 transitions. Word has length 165 [2024-10-24 01:56:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:56:17,225 INFO L471 AbstractCegarLoop]: Abstraction has 247642 states and 376074 transitions. [2024-10-24 01:56:17,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 247642 states and 376074 transitions. [2024-10-24 01:56:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 01:56:17,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:56:17,258 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:56:17,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:56:17,258 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-24 01:56:17,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:56:17,259 INFO L85 PathProgramCache]: Analyzing trace with hash -885703465, now seen corresponding path program 1 times [2024-10-24 01:56:17,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:56:17,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101359346] [2024-10-24 01:56:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:56:17,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:56:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:56:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:56:17,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:56:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101359346] [2024-10-24 01:56:17,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101359346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:56:17,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:56:17,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:56:17,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989484860] [2024-10-24 01:56:17,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:56:17,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:56:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:56:17,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:56:17,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:56:17,332 INFO L87 Difference]: Start difference. First operand 247642 states and 376074 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:56:20,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:56:20,551 INFO L93 Difference]: Finished difference Result 638300 states and 966172 transitions. [2024-10-24 01:56:20,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:56:20,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2024-10-24 01:56:20,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:56:21,246 INFO L225 Difference]: With dead ends: 638300 [2024-10-24 01:56:21,246 INFO L226 Difference]: Without dead ends: 391690 [2024-10-24 01:56:21,343 INFO L431 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 [2024-10-24 01:56:21,344 INFO L432 NwaCegarLoop]: 880 mSDtfsCounter, 502 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:56:21,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1422 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 01:56:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391690 states.