./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU --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 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:48,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:48,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:58:48,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:48,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:48,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:48,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:48,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:48,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:58:48,616 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:58:48,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:58:48,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:58:48,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:48,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:48,619 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:48,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:48,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:58:48,620 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:58:48,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:58:48,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:58:48,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:48,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:58:48,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:58:48,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:58:48,622 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:48,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:58:48,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:48,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:48,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:48,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:48,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:58:48,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:58:48,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:48,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:48,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:58:48,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:58:48,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:58:48,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:58:48,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:58:48,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:58:48,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:58:48,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:58:48,631 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 [2024-10-31 21:58:49,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:49,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:49,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:49,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:49,066 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:49,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c Unable to find full path for "g++" [2024-10-31 21:58:51,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:51,628 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:51,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2024-10-31 21:58:51,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/data/ac1ca84fb/c43265f633bc4fc69774e476233da453/FLAG02f7b5f80 [2024-10-31 21:58:51,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/data/ac1ca84fb/c43265f633bc4fc69774e476233da453 [2024-10-31 21:58:51,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:51,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:51,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:51,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:51,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:51,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:51" (1/1) ... [2024-10-31 21:58:51,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebcc2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:51, skipping insertion in model container [2024-10-31 21:58:51,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:51" (1/1) ... [2024-10-31 21:58:51,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:52,093 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-10-31 21:58:52,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:52,761 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:52,791 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-10-31 21:58:53,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:53,073 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:53,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53 WrapperNode [2024-10-31 21:58:53,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:53,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:53,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:53,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:53,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,303 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-10-31 21:58:53,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:53,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:53,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:53,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:53,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,336 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,431 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]. [2024-10-31 21:58:53,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:53,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:53,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:53,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:53,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (1/1) ... [2024-10-31 21:58:53,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:53,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:53,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:53,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99e7c85-75b1-4abc-8e16-41e3a564a799/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:58:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:53,879 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:53,882 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:56,698 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-10-31 21:58:56,701 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:56,739 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:56,739 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:58:56,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:56 BoogieIcfgContainer [2024-10-31 21:58:56,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:56,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:58:56,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:58:56,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:58:56,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:58:51" (1/3) ... [2024-10-31 21:58:56,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba0d19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:56, skipping insertion in model container [2024-10-31 21:58:56,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:53" (2/3) ... [2024-10-31 21:58:56,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba0d19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:56, skipping insertion in model container [2024-10-31 21:58:56,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:56" (3/3) ... [2024-10-31 21:58:56,760 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label23.c [2024-10-31 21:58:56,781 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:58:56,782 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:58:56,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:58:56,936 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;@5e9acc83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:58:56,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:58:56,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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) [2024-10-31 21:58:56,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 21:58:56,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:56,957 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] [2024-10-31 21:58:56,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:56,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1843609039, now seen corresponding path program 1 times [2024-10-31 21:58:56,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:56,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477532360] [2024-10-31 21:58:56,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:56,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:57,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:57,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477532360] [2024-10-31 21:58:57,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477532360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:57,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:57,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:57,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278468273] [2024-10-31 21:58:57,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:57,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:58:57,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:57,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:57,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:57,420 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-10-31 21:58:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:59,686 INFO L93 Difference]: Finished difference Result 1137 states and 2118 transitions. [2024-10-31 21:58:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:59,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2024-10-31 21:58:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:59,708 INFO L225 Difference]: With dead ends: 1137 [2024-10-31 21:58:59,708 INFO L226 Difference]: Without dead ends: 662 [2024-10-31 21:58:59,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:59,717 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 355 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:59,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 60 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-31 21:58:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-10-31 21:58:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-10-31 21:58:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.7639939485627836) internal successors, (1166), 661 states have internal predecessors, (1166), 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) [2024-10-31 21:58:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1166 transitions. [2024-10-31 21:58:59,838 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1166 transitions. Word has length 31 [2024-10-31 21:58:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:59,838 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1166 transitions. [2024-10-31 21:58:59,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-10-31 21:58:59,839 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1166 transitions. [2024-10-31 21:58:59,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-31 21:58:59,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:59,844 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:59,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:58:59,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:59,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 357086092, now seen corresponding path program 1 times [2024-10-31 21:58:59,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:59,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482656146] [2024-10-31 21:58:59,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:59,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:00,131 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:00,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:00,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482656146] [2024-10-31 21:59:00,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482656146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:00,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:00,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:00,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904354351] [2024-10-31 21:59:00,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:00,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:00,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:00,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:00,136 INFO L87 Difference]: Start difference. First operand 662 states and 1166 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2024-10-31 21:59:02,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:02,233 INFO L93 Difference]: Finished difference Result 1980 states and 3493 transitions. [2024-10-31 21:59:02,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:02,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2024-10-31 21:59:02,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:02,240 INFO L225 Difference]: With dead ends: 1980 [2024-10-31 21:59:02,243 INFO L226 Difference]: Without dead ends: 1320 [2024-10-31 21:59:02,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:02,247 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 344 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:02,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 77 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-31 21:59:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-10-31 21:59:02,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-10-31 21:59:02,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.6656557998483699) internal successors, (2197), 1319 states have internal predecessors, (2197), 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) [2024-10-31 21:59:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2197 transitions. [2024-10-31 21:59:02,320 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2197 transitions. Word has length 96 [2024-10-31 21:59:02,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:02,321 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2197 transitions. [2024-10-31 21:59:02,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2024-10-31 21:59:02,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2197 transitions. [2024-10-31 21:59:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-31 21:59:02,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:02,327 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:02,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:02,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:02,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:02,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1175667850, now seen corresponding path program 1 times [2024-10-31 21:59:02,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:02,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630759404] [2024-10-31 21:59:02,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:02,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:02,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:02,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630759404] [2024-10-31 21:59:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630759404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:02,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:02,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:02,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641198445] [2024-10-31 21:59:02,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:02,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:02,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:02,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:02,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:02,578 INFO L87 Difference]: Start difference. First operand 1320 states and 2197 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2024-10-31 21:59:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:04,953 INFO L93 Difference]: Finished difference Result 3625 states and 6017 transitions. [2024-10-31 21:59:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:04,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 99 [2024-10-31 21:59:04,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:04,964 INFO L225 Difference]: With dead ends: 3625 [2024-10-31 21:59:04,964 INFO L226 Difference]: Without dead ends: 2307 [2024-10-31 21:59:04,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:04,968 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 282 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:04,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 120 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-31 21:59:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2024-10-31 21:59:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2307. [2024-10-31 21:59:05,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2306 states have (on average 1.5923677363399826) internal successors, (3672), 2306 states have internal predecessors, (3672), 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) [2024-10-31 21:59:05,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3672 transitions. [2024-10-31 21:59:05,027 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3672 transitions. Word has length 99 [2024-10-31 21:59:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:05,028 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 3672 transitions. [2024-10-31 21:59:05,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2024-10-31 21:59:05,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3672 transitions. [2024-10-31 21:59:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-31 21:59:05,031 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:05,031 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:05,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:05,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:05,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1706439456, now seen corresponding path program 1 times [2024-10-31 21:59:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37466127] [2024-10-31 21:59:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:05,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:05,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:05,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37466127] [2024-10-31 21:59:05,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37466127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:05,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:05,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:05,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184146622] [2024-10-31 21:59:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:05,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:05,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:05,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:05,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:05,382 INFO L87 Difference]: Start difference. First operand 2307 states and 3672 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-10-31 21:59:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:08,900 INFO L93 Difference]: Finished difference Result 6257 states and 9781 transitions. [2024-10-31 21:59:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:08,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2024-10-31 21:59:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:08,917 INFO L225 Difference]: With dead ends: 6257 [2024-10-31 21:59:08,917 INFO L226 Difference]: Without dead ends: 3952 [2024-10-31 21:59:08,922 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 [2024-10-31 21:59:08,924 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 886 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:08,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 191 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-31 21:59:08,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-10-31 21:59:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-10-31 21:59:09,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.4312832194381169) internal successors, (5655), 3951 states have internal predecessors, (5655), 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) [2024-10-31 21:59:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 5655 transitions. [2024-10-31 21:59:09,027 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 5655 transitions. Word has length 104 [2024-10-31 21:59:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:09,028 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 5655 transitions. [2024-10-31 21:59:09,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-10-31 21:59:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 5655 transitions. [2024-10-31 21:59:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-31 21:59:09,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:09,035 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:09,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:09,036 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:09,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash 478482531, now seen corresponding path program 1 times [2024-10-31 21:59:09,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:09,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951561487] [2024-10-31 21:59:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:09,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 21:59:09,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:09,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951561487] [2024-10-31 21:59:09,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951561487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:09,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:09,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:09,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544586329] [2024-10-31 21:59:09,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:09,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:09,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:09,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:09,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:09,272 INFO L87 Difference]: Start difference. First operand 3952 states and 5655 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-10-31 21:59:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:11,171 INFO L93 Difference]: Finished difference Result 10534 states and 15398 transitions. [2024-10-31 21:59:11,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:11,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 118 [2024-10-31 21:59:11,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:11,198 INFO L225 Difference]: With dead ends: 10534 [2024-10-31 21:59:11,198 INFO L226 Difference]: Without dead ends: 6913 [2024-10-31 21:59:11,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:11,205 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 265 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:11,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 223 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-31 21:59:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2024-10-31 21:59:11,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6913. [2024-10-31 21:59:11,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6913 states, 6912 states have (on average 1.3081597222222223) internal successors, (9042), 6912 states have internal predecessors, (9042), 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) [2024-10-31 21:59:11,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 9042 transitions. [2024-10-31 21:59:11,377 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 9042 transitions. Word has length 118 [2024-10-31 21:59:11,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:11,379 INFO L471 AbstractCegarLoop]: Abstraction has 6913 states and 9042 transitions. [2024-10-31 21:59:11,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-10-31 21:59:11,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 9042 transitions. [2024-10-31 21:59:11,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-10-31 21:59:11,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:11,386 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:11,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:11,386 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:11,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:11,388 INFO L85 PathProgramCache]: Analyzing trace with hash 888355746, now seen corresponding path program 1 times [2024-10-31 21:59:11,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:11,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773904241] [2024-10-31 21:59:11,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:11,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-10-31 21:59:11,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:11,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773904241] [2024-10-31 21:59:11,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773904241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:11,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:11,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:11,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926293909] [2024-10-31 21:59:11,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:11,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:11,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:11,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:11,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:11,680 INFO L87 Difference]: Start difference. First operand 6913 states and 9042 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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) [2024-10-31 21:59:13,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:13,371 INFO L93 Difference]: Finished difference Result 16456 states and 21659 transitions. [2024-10-31 21:59:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:13,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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 265 [2024-10-31 21:59:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:13,403 INFO L225 Difference]: With dead ends: 16456 [2024-10-31 21:59:13,403 INFO L226 Difference]: Without dead ends: 9874 [2024-10-31 21:59:13,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:13,411 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 359 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:13,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 21:59:13,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9874 states. [2024-10-31 21:59:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9874 to 8229. [2024-10-31 21:59:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8229 states, 8228 states have (on average 1.2035731648031114) internal successors, (9903), 8228 states have internal predecessors, (9903), 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) [2024-10-31 21:59:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8229 states to 8229 states and 9903 transitions. [2024-10-31 21:59:13,580 INFO L78 Accepts]: Start accepts. Automaton has 8229 states and 9903 transitions. Word has length 265 [2024-10-31 21:59:13,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:13,584 INFO L471 AbstractCegarLoop]: Abstraction has 8229 states and 9903 transitions. [2024-10-31 21:59:13,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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) [2024-10-31 21:59:13,585 INFO L276 IsEmpty]: Start isEmpty. Operand 8229 states and 9903 transitions. [2024-10-31 21:59:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-10-31 21:59:13,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:13,594 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:13,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:13,595 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:13,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 202313507, now seen corresponding path program 1 times [2024-10-31 21:59:13,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:13,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774541098] [2024-10-31 21:59:13,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:14,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:14,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774541098] [2024-10-31 21:59:14,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774541098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:14,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:14,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:59:14,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830780647] [2024-10-31 21:59:14,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:14,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:59:14,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:14,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:59:14,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:14,443 INFO L87 Difference]: Start difference. First operand 8229 states and 9903 transitions. Second operand has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 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) [2024-10-31 21:59:16,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:16,820 INFO L93 Difference]: Finished difference Result 15717 states and 19011 transitions. [2024-10-31 21:59:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:16,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 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 353 [2024-10-31 21:59:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:16,843 INFO L225 Difference]: With dead ends: 15717 [2024-10-31 21:59:16,845 INFO L226 Difference]: Without dead ends: 7900 [2024-10-31 21:59:16,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:16,851 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 308 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:16,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 291 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-31 21:59:16,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2024-10-31 21:59:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7900. [2024-10-31 21:59:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.0845676667932649) internal successors, (8567), 7899 states have internal predecessors, (8567), 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) [2024-10-31 21:59:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 8567 transitions. [2024-10-31 21:59:16,985 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 8567 transitions. Word has length 353 [2024-10-31 21:59:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:16,985 INFO L471 AbstractCegarLoop]: Abstraction has 7900 states and 8567 transitions. [2024-10-31 21:59:16,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 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) [2024-10-31 21:59:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 8567 transitions. [2024-10-31 21:59:16,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-10-31 21:59:16,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:16,992 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:16,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:59:16,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:16,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:16,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1300314316, now seen corresponding path program 1 times [2024-10-31 21:59:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:16,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953375807] [2024-10-31 21:59:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:16,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-10-31 21:59:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953375807] [2024-10-31 21:59:17,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953375807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:17,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:17,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:17,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634758346] [2024-10-31 21:59:17,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:17,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:17,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:17,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:17,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:17,422 INFO L87 Difference]: Start difference. First operand 7900 states and 8567 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2024-10-31 21:59:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:18,949 INFO L93 Difference]: Finished difference Result 18101 states and 19824 transitions. [2024-10-31 21:59:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:18,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 370 [2024-10-31 21:59:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:18,975 INFO L225 Difference]: With dead ends: 18101 [2024-10-31 21:59:18,975 INFO L226 Difference]: Without dead ends: 10861 [2024-10-31 21:59:18,983 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 [2024-10-31 21:59:18,984 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 304 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:18,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 405 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-31 21:59:18,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states.